An active precision injection device and system for ultra-thin macromolecular reference materials

Abstract

The present invention relates to the technical field of mass spectrometry calibration, and particularly relates to an active precision injection device and system for ultra-thin macromolecular reference materials. The device includes: a liquid storage component, a vaporization component, and a capillary pipeline injection component; the liquid storage component is connected to the vaporization component through a first pipeline; the liquid storage component is used to store macromolecular reference materials and increase the internal pressure of the liquid storage component by adjusting the liquid storage temperature, and regulate the macromolecular reference materials inside the liquid storage component to be in a liquid state or a gaseous state through temperature control, so as to achieve controllable states of the macromolecular reference materials; the vaporization component vaporizes and maintains the macromolecular reference materials by adjusting the vaporization temperature and vaporization pressure; the vaporization component is also connected to a calibration chamber through the capillary pipeline injection component; the capillary pipeline component injects the vaporized macromolecular reference materials in the vaporization component into the calibration chamber at a stable flow rate through the capillary principle. The present invention realizes the active precision injection of ultra-thin macromolecular reference materials.

Description

Technical Field

[0001] The present invention relates to the technical field of mass spectrometry calibration, and particularly relates to an active precision injection device and system for ultra-thin macromolecular reference materials. Background Art

[0002] The mass spectrometry method is an important means for accurately measuring substances and has been widely used in the fields of organic chemistry, biochemistry, environmental protection, petrochemistry, geochemistry, cosmochemistry, and defense chemistry.

[0003] To ensure the accuracy of quantitative measurement of a mass spectrometer, the mass spectrometer must be tested and calibrated before use, and calibrated with known substances. Currently, the calibration methods are divided into direct comparison method and indirect comparison method, but the reference materials used are all gas substances with small mass numbers such as helium, nitrogen, oxygen, and argon, which can only achieve calibration of small mass numbers below 150 amu and cannot calibrate substances with large mass numbers in the hundreds, having the disadvantage of limited calibration range.

[0004] And the reference materials with large mass numbers are all non-gaseous. For example, the reference material is a non-toxic and odorless liquid under normal temperature and pressure and is a good substance for calibration. Currently, the conventional usage of the reference material is to let it volatilize naturally and then introduce it into the gas path for qualitative comparison, which cannot accurately control the injection volume and cannot meet the requirements of precise calibration. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects of the prior art, and thus provide an active precision injection device and system for ultra-thin macromolecular reference materials.

[0006] To solve the above technical problems, an active precision injection device for ultra-thin macromolecular reference materials provided by the technical solution of the present invention includes: a liquid storage component, a gasification component, and a capillary pipeline injection component. Among them, the liquid storage component is connected to the gasification component through a first pipeline, and a first stop valve is provided on the first pipeline; among them,

[0007] The liquid storage component is used for storing macromolecular reference materials, and by adjusting the liquid storage temperature, the internal pressure of the liquid storage component is increased, and the macromolecular reference materials inside the liquid storage component are made to be in a liquid state or a gaseous state through temperature control, so as to realize controllable state of the macromolecular reference materials;

[0008] The gasification component gasifies and maintains the macromolecular reference materials by adjusting the gasification temperature and gasification pressure;

[0009] The gasification component is also connected to a calibration chamber through a capillary pipeline injection component; among them, the capillary pipeline component injects the gasified macromolecular reference materials in the gasification component into the calibration chamber at a stable flow rate through the capillary principle.

[0010] As an improvement of the above device, the liquid storage component includes: a liquid storage tank for storing macromolecular reference materials and a liquid storage tank injection pressure device, and further includes components connected to the liquid storage tank: a pressure relief valve, a liquid storage tank pressure measuring component, a liquid storage tank injection pressure pipeline, and a liquid storage tank temperature control component for adjusting the internal temperature of the liquid storage tank; the liquid storage tank is connected to the gasification component through a first pipeline; the liquid storage tank is also selectively communicated with the liquid storage tank injection pressure device through the liquid storage tank injection pressure pipeline.

[0011] As an improvement of the above device, the gasification component includes: a gasification chamber and components connected to the gasification chamber: a gasification chamber pressure control component and a gasification chamber temperature control component; wherein, the gasification chamber pressure control component includes: a primary pressure measuring component, a gasification chamber pressure control pipeline, and a gasification chamber air extraction device; wherein, the primary pressure measuring component is used for measuring the internal pressure of the gasification chamber; the gasification chamber air extraction device is connected to the gasification chamber through the gasification chamber pressure control pipeline and is used for extracting the gas in the gasification chamber to control the internal pressure of the gasification chamber and adjust the internal vacuum degree of the gasification chamber; a gasification chamber air extraction valve is arranged on the gasification chamber pressure control pipeline for controlling the background vacuum degree of the gasification chamber pressure control pipeline.

[0012] As an improvement of the above device, the capillary pipeline injection component includes: a capillary pipeline, a capillary pipeline gas injection device, a capillary pipeline flowmeter, and a capillary pipeline air extraction device, and further includes: a second cut-off valve, a secondary pressure regulating valve, a secondary pressure measuring component, an air injection chamber, and an air extraction chamber sequentially arranged on the capillary pipeline from the gasification chamber to the calibration chamber; wherein, the capillary pipeline flowmeter is used for monitoring the flow rate of the capillary pipeline; the air injection chamber is selectively communicated with the capillary pipeline gas injection device, and the air extraction chamber is selectively communicated with the capillary pipeline air extraction device.

[0013] As an improvement of the above device, the device further includes: a pipeline temperature control component for heating any one pipeline or heating any multiple pipelines separately.

[0014] To achieve another object of the present invention, the present invention further provides an active precision injection system for ultra-thin macromolecular reference materials, including the above-mentioned active precision injection device for ultra-thin macromolecular reference materials, and further including:

[0015] a temperature control module for controlling the temperatures of the liquid storage tank, the gasification chamber, and the pipeline to make the corresponding actual temperatures reach the corresponding preset temperatures;

[0016] a pressure control module for controlling the pressures of the liquid storage tank, the gasification chamber, and the capillary pipeline to make the corresponding actual pressures reach the corresponding preset pressures; and

[0017] a flow control module for controlling the flow area from the liquid storage tank to the gasification chamber, for controlling the flow area between the gasification chamber and the capillary pipeline to make the corresponding actual flow rates reach the corresponding preset flow rates, and further for controlling the mass flow rate of the gasified macromolecular reference materials in the capillary pipeline to make the actual mass flow rate reach the preset mass flow rate.

[0018] As an improvement of the above system, the temperature control module includes: a liquid storage tank temperature control unit, a vaporization chamber temperature control unit, and a pipeline temperature control unit; wherein, the liquid storage tank temperature control unit controls the temperature of the liquid storage tank temperature control component to keep the monitored temperature in the liquid storage tank at 40-300 °C, so as to keep the macromolecular reference material in a liquid or gaseous state in the liquid storage tank; the vaporization chamber temperature control unit controls the temperature of the vaporization chamber temperature control component to keep the monitored temperature in the vaporization chamber above 50 °C; the pipeline temperature control unit is used to adjust the temperature of the pipeline temperature control component.

[0019] As an improvement of the above system, the pressure control module includes: a liquid storage tank pressure control unit, a vaporization chamber pressure control unit, and a capillary pressure control unit; wherein, the liquid storage tank pressure control unit controls the opening or closing of the pressure relief valve based on the actual pressure monitored by the liquid storage tank pressure measuring component, and controls the on-off between the liquid storage tank and the liquid storage tank pressure injection device, so that the actual pressure of the liquid storage tank reaches the preset liquid storage tank pressure; the preset liquid storage tank pressure range is 1.0 - 1.5 atmospheres; the vaporization chamber pressure control unit controls the on-off between the vaporization chamber and the vaporization chamber air extraction device based on the actual pressure monitored by the first-stage pressure measuring component, so that the actual pressure of the vaporization chamber reaches the preset vaporization chamber pressure; the preset vaporization chamber pressure range is 200 - 4000 Pa; the capillary pressure control unit controls the opening angle of the second-stage pressure regulating valve based on the actual pressure monitored by the second-stage pressure measuring component, so that the actual pressure of the capillary pipeline reaches the preset capillary pipeline pressure; the range of the preset capillary pipeline pressure is 1E-6 to 1E1 Pa.

[0020] As an improvement of the above system, the flow control module is used to control the opening angles of the first stop valve and the second stop valve to control the flow area from the liquid storage tank to the vaporization chamber and the flow area between the vaporization chamber and the second-stage pressure regulating valve; and is used to control the on-off between the gas injection chamber and the capillary pipeline gas injection device and the on-off between the air extraction chamber and the capillary pipeline air extraction device based on the actual mass flow monitored by the capillary pipeline flowmeter, so that the mass flow of the vaporized macromolecular reference material reaches the preset mass flow value.

[0021] As an improvement of the above system, the system further includes: a storage module, a display module, and a setting module; the storage module is used to store the monitored pressure value, monitored temperature value, monitored flow value, and monitored mass flow value; the setting module is used to input the preset pressure, preset temperature, preset flow, and preset mass flow; the setting module is also used to input a data playback instruction and a display setting instruction; the display module displays the corresponding data based on the data playback instruction or / and the display setting instruction input by the setting module.

[0022] Compared with the prior art, the advantages of the present invention are that an active precision injection device and system for ultra-thin macromolecular reference materials provided by the present invention can heat and vaporize liquid macromolecular reference materials with hundreds of mass numbers, precisely control their vaporization pressure, and then precisely inject them into the calibration chamber through a high-temperature pipeline pressure reducing valve, realizing the active precision injection of ultra-thin macromolecular reference materials, and providing a new method for calibrating the macromolecular mass numbers of mass spectrometers. Description of the Drawings

[0023] Figure 1 Schematic diagram of the active precision injection device for ultra-thin macromolecular reference materials;

[0024] Figure 2 Working principle of the capillary pipeline injection component;

[0025] Figure 3 Schematic block diagram of the active precision injection system for ultra-thin macromolecular reference materials;

[0026] Figure 4 Schematic diagram of the integrated control software. Detailed Embodiments

[0027] The following further illustrates the technical solutions provided by the present invention in conjunction with embodiments.

[0028] Embodiment 1

[0029] This embodiment provides an active precision injection device for ultra-thin macromolecular reference materials, including: a liquid storage component, a vaporization component, and a capillary pipeline injection component. Among them, the liquid storage component is connected to the vaporization component through a first pipeline, and a first stop valve is provided on this first pipeline; among them,

[0030] The liquid storage component is used to store macromolecular reference materials, increase the internal pressure of the liquid storage component by adjusting the liquid storage temperature, and adjust the macromolecular reference materials inside the liquid storage component to be in a liquid state or a gaseous state through temperature control, so as to realize the controllable state of macromolecular reference materials;

[0031] The vaporization component vaporizes and maintains the macromolecular reference materials by adjusting the vaporization temperature and vaporization pressure;

[0032] The vaporization component is also connected to the calibration chamber through the capillary pipeline injection component; among them, the capillary pipeline component injects the vaporized macromolecular reference materials in the vaporization component into the calibration chamber at a stable flow rate through the capillary principle.

[0033] Preferably, the liquid storage component includes: a liquid storage tank for storing macromolecular reference substances and a liquid storage tank injection pressure device, and further includes components connected to the liquid storage tank: a pressure relief valve, a liquid storage tank pressure measuring component, a liquid storage tank injection pressure pipeline, and a liquid storage tank temperature control component for adjusting the internal temperature of the liquid storage tank; the liquid storage tank is connected to the gasification component through a first pipeline; the liquid storage tank is also selectively communicated with the liquid storage tank injection pressure device through the liquid storage tank injection pressure pipeline.

[0034] Preferably, the gasification component includes: a gasification chamber and components connected to the gasification chamber: a gasification chamber pressure control component and a gasification chamber temperature control component; wherein, the gasification chamber pressure control component includes: a primary pressure measuring component, a gasification chamber pressure control pipeline, and a gasification chamber air extraction device; wherein, the primary pressure measuring component is used for measuring the internal pressure of the gasification chamber; the gasification chamber air extraction device is connected to the gasification chamber through the gasification chamber pressure control pipeline and is used for extracting the gas in the gasification chamber to control the internal pressure of the gasification chamber and adjust the internal vacuum degree of the gasification chamber; a gasification chamber air extraction valve is arranged on the gasification chamber pressure control pipeline for controlling the background vacuum degree of the gasification chamber pressure control pipeline.

[0035] Preferably, the capillary pipeline injection component includes: a capillary pipeline, a capillary pipeline gas injection device, a capillary pipeline flowmeter, and a capillary pipeline air extraction device, and further includes: a second cut-off valve, a secondary pressure regulating valve, a secondary pressure measuring component, an air injection chamber, and an air extraction chamber sequentially arranged on the capillary pipeline from the gasification chamber to the calibration chamber; wherein, the capillary pipeline flowmeter is used for monitoring the flow rate of the capillary pipeline; the air injection chamber is selectively communicated with the capillary pipeline gas injection device, and the air extraction chamber is selectively communicated with the capillary pipeline air extraction device.

[0036] Preferably, the device further includes: a pipeline temperature control component for heating any one pipeline or heating any multiple pipelines respectively.

[0037] Embodiment 2

[0038] This embodiment provides an active precision injection system for ultra-thin macromolecular reference substances, including the above-mentioned active precision injection device for ultra-thin macromolecular reference substances, and further includes:

[0039] a temperature control module for controlling the temperatures of the liquid storage tank, the gasification chamber, and the pipeline to make the corresponding actual temperatures reach the corresponding preset temperatures;

[0040] a pressure control module for controlling the pressures of the liquid storage tank, the gasification chamber, and the capillary pipeline to make the corresponding actual pressures reach the corresponding preset pressures; and

[0041] a flow control module for controlling the flow area from the liquid storage tank to the gasification chamber, for controlling the flow area between the gasification chamber and the capillary pipeline to make the corresponding actual flow rates reach the corresponding preset flow rates, and further for controlling the mass flow rate of the gasified macromolecular reference substances in the capillary pipeline to make the actual mass flow rate reach the preset mass flow rate.

[0042] Preferably, the temperature control module includes: a liquid storage tank temperature control unit, a vaporization chamber temperature control unit, and a pipeline temperature control unit; wherein, the liquid storage tank temperature control unit controls the temperature of the liquid storage tank temperature control assembly to keep the temperature in the monitored liquid storage tank at 40-300 °C, so as to keep the macromolecular reference substance in a liquid or gaseous state in the liquid storage tank; the vaporization chamber temperature control unit controls the temperature of the vaporization chamber temperature control assembly to keep the temperature in the monitored vaporization chamber above 50 °C; the pipeline temperature control unit is used to adjust the temperature of the pipeline temperature control assembly.

[0043] Preferably, the pressure control module includes: a liquid storage tank pressure control unit, a vaporization chamber pressure control unit, and a capillary pressure control unit; wherein, the liquid storage tank pressure control unit controls the opening or closing of the pressure relief valve based on the actual pressure monitored by the liquid storage tank pressure measuring component, and controls the on-off between the liquid storage tank and the liquid storage tank pressure injection device, so that the actual pressure of the liquid storage tank reaches the preset liquid storage tank pressure; the preset liquid storage tank pressure range is 1.0-1.5 atmospheres; the vaporization chamber pressure control unit controls the on-off between the vaporization chamber and the vaporization chamber air extraction device based on the actual pressure monitored by the first-stage pressure measuring component, so that the actual pressure of the vaporization chamber reaches the preset vaporization chamber pressure; the preset vaporization chamber pressure range is 200-4000 Pa; the capillary pressure control unit controls the opening angle of the second-stage pressure regulating valve based on the actual pressure monitored by the second-stage pressure measuring component, so that the actual pressure of the capillary pipeline reaches the preset capillary pipeline pressure; the range of the preset capillary pipeline pressure is 1E-6 to 1E1 Pa.

[0044] Preferably, the flow control module is used to control the opening angles of the first stop valve and the second stop valve to control the flow area from the liquid storage tank to the vaporization chamber and the flow area between the vaporization chamber and the second-stage pressure regulating valve; and is used to control the on-off between the gas injection chamber and the capillary pipeline gas injection device and the on-off between the air extraction chamber and the capillary pipeline air extraction device based on the actual mass flow monitored by the capillary pipeline flowmeter, so that the mass flow of the vaporized macromolecular reference substance reaches the preset mass flow value.

[0045] Preferably, the system further includes: a storage module, a display module, and a setting module; the storage module is used to store the monitored pressure value, monitored temperature value, monitored flow value, and monitored mass flow value; the setting module is used to input the preset pressure, preset temperature, preset flow, and preset mass flow; the setting module is further used to input a data playback instruction and a display setting instruction; the display module displays the corresponding data based on the data playback instruction or / and the display setting instruction input by the setting module.

[0046] As Figure 1 shown, the ultra-thin macromolecular reference substance active precision injection system provided in this embodiment consists of a macromolecular reference gas sample injection hardware and a host computer control operation software. The overall composition of the system is as Figure 2As shown, an integrated design is adopted.

[0047] In this device, the liquid-phase macromolecular reference material is stored in a closed space. In this embodiment, it is stored in a liquid storage tank, and then the liquid-phase material enters the vaporization heating circuit through a liquid path and maintains a certain pressure to vaporize the gas in the vaporization chamber. Then, the gaseous macromolecules are accurately injected into the ultra-high vacuum system through a precision flow injection device, and at the same time, the injection amount of the gaseous macromolecules is quickly and accurately controlled by an integrated control software.

[0048] 1. Liquid-phase stable vaporization component of macromolecular reference material

[0049] The hardware part of the liquid-phase stable vaporization component of macromolecular reference material may include: a liquid-phase material storage and flow regulation module, a vaporization chamber temperature control module, and a chamber vacuum pumping device. The liquid-phase material storage and flow regulation module stores a certain amount of reference material and performs appropriate heat preservation to increase the overall pressure in the liquid storage tank chamber. At the same time, the flow rate injected into the vaporization chamber is regulated through a flow meter. The vaporization chamber temperature control module is used to automatically control the temperature in the vaporization chamber to prevent the gas inside the chamber from liquefying. At the same time, a small vacuum pumping device is equipped to ensure that the reference material inside the chamber is in a gaseous state.

[0050] As Figure 1 shown, the mechanical structure of the liquid-phase stable vaporization component of macromolecular reference material is as follows:

[0051] 1.1 Liquid storage tank

[0052] The liquid storage tank has a measurement port and an air outlet at the upper part. The outside of the liquid storage tank is wrapped with a heating tape, and its temperature can be controlled within the range of 40 - 300 °C. The heating temperature can be arbitrarily set within this range to ensure the vaporization of the liquid in the tank.

[0053] 1.2 Temperature control device

[0054] The temperature control device controls the temperature of the liquid storage tank pipeline and other pipelines. The temperature can be set to the same temperature or different temperatures.

[0055] 1.3 First stop valve

[0056] The purpose of setting the stop valve is to allow only a small amount of the vaporized reference material to pass through, avoiding excessive loss of the sample. In this embodiment, the first stop valve controls the flow rate by adjusting the flow area of the pipeline between the liquid storage tank and the vaporization chamber.

[0057] 1.4 Pressure relief valve

[0058] Considering the safety factors of the temperature control system, a pressure relief valve is also installed on the liquid storage tank. When the pressure is greater than a certain set value, the valve automatically opens to relieve the pressure.

[0059] 2. Gas-phase Precision Injection Assembly for Macromolecular Reference Materials

[0060] The gas-phase precision micro-injection module for macromolecular substances is used to quickly and accurately quantitatively control the gas content in an extremely high vacuum system. By using a capillary tube plus a precision flow controller, it ensures that the vacuum degree in the extremely high vacuum system covers 1E-8 to 1E-3 Pa.

[0061] As Figure 2 shown, the capillary injection component mainly consists of a capillary tube, an injection chamber, a pumping chamber, and corresponding injection and pumping equipment, etc. The gasification cavity continuously injects the reference material gas with a stable mass flow rate Q into the calibration chamber through the pipeline injection component. The gas enters the calibration chamber through the capillary injection component and the flowmeter, making the gasification cavity, injection chamber, and pumping chamber form a stable dynamic equilibrium pressure distribution. The pumping port of the gasification cavity is connected to the pumping device through a pressure control pipeline, and the first pumping valve is set on this pressure control pipeline. The vacuum measurement port of the gasification cavity is connected to the primary pressure measuring component for monitoring the pressure of the gasification cavity. The gasification cavity is also connected to the calibration chamber through the capillary injection component for stably injecting the gasified reference material into the calibration chamber.

[0062] 2.1 Gasification Cavity

[0063] It is made of stainless steel material and can be temperature-controlled to prevent the reference material from cooling and liquefying. There are a pumping port and a vacuum measurement port on it. The pumping port is connected to the extremely high vacuum system through a tee and a valve.

[0064] 2.2 Secondary Pressure Regulating Valve

[0065] The control system compares the collected secondary pressure signal with the current set value. If the former is greater than the latter, it drives the valve clockwise to close the valve; otherwise, it drives the valve counterclockwise to open the valve. The control system outputs multiple pulse signals to drive the driver of the stepping motor to control this valve, so that the measured value returns to the current set value.

[0066] 2.3 Secondary Measurement

[0067] The secondary measurement uses a full-range compound gauge, and the measurement range is: atmosphere to 1E-5 Pa. The pressure control system compares the measured value with the set value and controls the drive motor of the secondary pressure regulating valve to make the actual measured value return to the set value.

[0068] 3. Integrated Control Software for Macromolecular Substance Injection

[0069] As Figure 3As shown, the integrated control software for macromolecule substance injection monitors the feedback of temperature and vacuum degree to control the working states of the flowmeter, heating device, and vacuum valve in the injection function module, realizing the automatic integrated intelligent control of the entire device, improving the control efficiency, completing the active and precise injection of macromolecule gas, and simultaneously realizing the automatic archiving, display, and playback of various monitoring and control data.

[0070] As Figure 4 shown, the display area can display the liquid phase temperature, gas phase temperature, vaporization chamber pressure, and injection chamber pressure; the control area can control the flowmeter, temperature, valve, and vacuum unit; the setting area can perform device initialization, set the target pressure value, data playback, and set the display content.

[0071] Generally speaking, in the present invention, the macromolecule standard substance is kept in a liquid state in the liquid storage tank by heat preservation and pressure maintenance of the liquid storage tank. The internal vacuum degree of the vaporization chamber is adjusted, and the temperature of the vaporization chamber is controlled to vaporize the macromolecule standard substance entering the vaporization chamber from the liquid storage tank, and then the mass flow rate of the vaporized macromolecule standard substance is adjusted through the capillary pipeline injection component to stably inject the vaporized macromolecule standard substance into the calibration chamber.

[0072] The present invention supports the selection of different liquid phase macromolecule standard substances, and can expand the calibration range to thousands of mass numbers, which is much higher than the conventional 150 amu mass number. The gas volume of the precise injection system provided by the present invention can reach a range covering high vacuum and even extremely high vacuum, realizing ultra-thin calibration.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An active precision injection device for ultra-thin macromolecular standard substances, comprising: A liquid storage component, a gasification component and a capillary injection component, wherein the liquid storage component is connected to the gasification component through a first pipeline, and the first pipeline is provided with a first stop valve; wherein, The liquid storage component is used to store macromolecular standard substances, and the internal pressure of the liquid storage component is increased by adjusting the liquid storage temperature, and the macromolecular standard substances in the liquid storage component are adjusted to be in liquid or gaseous state by temperature control, thereby achieving controllable state of the macromolecular standard substances; The gasification component gasifies and maintains the macromolecular standard substance by adjusting the gasification temperature and the gasification pressure; The gasification component is also connected to the calibration chamber via a capillary injection component; wherein the capillary injection component injects the gasified macromolecular standard substance in the gasification component into the calibration chamber at a stable flow rate through the capillary principle; The capillary line injection component includes: a capillary line, a capillary line gas injection device, a capillary line flowmeter and a capillary line gas extraction device, and also includes: a second stop valve, a secondary pressure regulating valve, a secondary pressure measuring piece, a gas injection chamber and a gas extraction chamber arranged on the capillary line in sequence from the gasification chamber to the calibration chamber; wherein, The capillary flowmeter is used to monitor the capillary flow; the gas injection chamber is selectively connected to the capillary gas injection device, and the gas extraction chamber is selectively connected to the capillary gas extraction device.

2. The ultra-thin macromolecular standard material active precision injection device according to claim 1 is characterized in that: The liquid storage component includes: a liquid storage tank and a liquid storage tank injection and pressure device for storing macromolecular standard substances, and also includes: a pressure relief valve, a liquid storage tank pressure measuring device, a liquid storage tank injection and pressure pipeline and a liquid storage tank temperature control component for adjusting the internal temperature of the liquid storage tank connected to the liquid storage tank; the liquid storage tank is connected to the gasification component through a first pipeline; the liquid storage tank is also selectively connected to the liquid storage tank injection and pressure device through the liquid storage tank injection and pressure pipeline.

3. The ultra-thin macromolecular standard material active precision injection device according to claim 1 is characterized in that: The gasification component includes: a gasification chamber and: a gasification chamber pressure control component and a gasification chamber temperature control component connected to the gasification chamber; wherein, The gasification chamber pressure control assembly includes: a first-level pressure measuring piece, a gasification chamber pressure control pipeline and a gasification chamber exhaust device; wherein, the first-level pressure measuring piece is used to measure the internal pressure of the gasification chamber; the gasification chamber exhaust device is connected to the gasification chamber through the gasification chamber pressure control pipeline, and is used to extract the gas in the gasification chamber to control the internal pressure of the gasification chamber and adjust the internal vacuum degree of the gasification chamber; the gasification chamber pressure control pipeline is provided with a gasification chamber exhaust valve, which is used to control the background vacuum degree of the gasification chamber pressure control pipeline.

4. The ultra-thin macromolecular standard material active precision injection device according to claim 1 is characterized in that: The device also includes: a pipeline temperature control component, which is used to heat any one pipeline or heat any multiple pipelines separately.

5. An ultra-thin macromolecular standard material active precision injection system, comprising the ultra-thin macromolecular standard material active precision injection device according to any one of claims 1 to 4, and further comprising: The temperature control module is used to control the temperature of the liquid storage tank, the gasification chamber and the pipeline so that the corresponding actual temperature reaches the corresponding preset temperature; The pressure control module is used to control the pressure of the liquid storage tank, the gasification chamber and the capillary pipeline so that the corresponding actual pressure reaches the corresponding preset pressure; and A flow control module is used to control the flow area from the liquid storage tank to the vaporization chamber, to control the flow area between the vaporization chamber and the capillary line, so that the corresponding actual flow rate reaches the corresponding preset flow rate, and to control the mass flow rate of the vaporized macromolecular standard substance in the capillary line, so that the actual mass flow rate reaches the preset mass flow rate; The pressure control module includes: a liquid storage tank pressure control unit, a vaporization cavity pressure control unit and a capillary pressure control unit; The liquid storage tank pressure control unit controls the opening or closing of the pressure relief valve based on the actual pressure monitored by the liquid storage tank pressure measuring device, and controls the connection and disconnection between the liquid storage tank and the liquid storage tank pressure injection device, so that the actual pressure of the liquid storage tank reaches the preset liquid storage tank pressure; The gasification chamber pressure control unit controls the connection and disconnection between the gasification chamber and the gasification chamber exhaust device based on the actual pressure monitored by the primary pressure measuring member, so that the actual pressure of the gasification chamber reaches the preset gasification chamber pressure; The capillary pressure control unit controls the opening angle of the secondary pressure regulating valve based on the actual pressure monitored by the secondary pressure measuring piece, so that the actual pressure of the capillary channel reaches the preset capillary channel pressure.

6. The ultra-thin macromolecular standard material active precision injection system according to claim 5 is characterized in that: The temperature control module includes: a liquid storage tank temperature control unit, a gasification chamber temperature control unit and a pipeline temperature control unit; wherein, The liquid storage tank temperature control unit controls the temperature of the liquid storage tank temperature control component to keep the temperature in the monitored liquid storage tank at 40-300° C., thereby keeping the macromolecular standard substance in the liquid storage tank in a liquid or gaseous state; The gasification chamber temperature control unit controls the temperature of the gasification chamber temperature control component to keep the monitored temperature in the gasification chamber above 50°C; The pipeline temperature control unit is used to adjust the temperature of the pipeline temperature control component.

7. The ultra-thin macromolecular standard material active precision injection system according to claim 5 is characterized in that: in, The preset liquid storage tank pressure range is 1.0-1.5 atmospheres; The preset gasification chamber pressure range is 200-4000Pa; The preset capillary pressure ranges from 1E-6 to 1E1 Pa.

8. The ultra-thin macromolecular standard material active precision injection system according to claim 5 is characterized in that: The flow control module is used to control the opening angles of the first stop valve and the second stop valve to control the flow area from the liquid storage tank to the vaporization chamber and the flow area between the vaporization chamber and the secondary pressure regulating valve; it is used to control the connection and disconnection between the gas injection chamber and the capillary gas injection device and the connection and disconnection between the gas extraction chamber and the capillary gas extraction device based on the actual mass flow monitored by the capillary flowmeter, so that the mass flow rate of the gasified macromolecular standard substance reaches a preset mass flow rate value.

9. The ultra-thin macromolecular standard material active precision injection system according to claim 5 is characterized in that: Also includes: Storage module, display module and setting module; The storage module is used to store the monitored pressure value, the monitored temperature value, the monitored flow value and the monitored mass flow value; The setting module is used to input a preset pressure, a preset temperature, a preset flow rate and a preset mass flow rate; The setting module is also used to input data playback instructions and display setting instructions; The display module displays corresponding data based on the data playback instruction and / or the display setting instruction input by the setting module.

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