Uncovering-free liquid adding device for atomic emission spectrum and absorption spectrum test

Abstract

The utility model relates to the technical field of spectrum testing instruments, and discloses a cover-opening-free liquid adding device for atomic emission spectrum and absorption spectrum testing, which comprises a liquid inlet bottle and a sealing cover, the sealing cover is arranged at a bottle opening of the liquid inlet bottle, a sample injection pipe opening and a liquid injection opening are formed in the sealing cover, and the liquid injection opening is communicated with the liquid inlet bottle. And the sample injection pipe opening and the liquid injection opening penetrate through the sealing cover and are communicated with the interior of the liquid inlet bottle. According to the device, the sealing cover is arranged at the top of the liquid inlet bottle, and the sample injection pipe orifice and the liquid injection opening are formed in the sealing cover, so that filtering and liquid adding can be completed at the same time, and uncovering-free operation is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spectrum testing instrument, more specifically, especially, it is a kind of for atomic emission spectrum and absorption spectrum test's exempt from to open cover liquid feeding device. BACKGROUND

[0002] When testing by atomic emission / absorption spectrometer, plasma emission torch, flame atomic absorption instrument and the like are often used, and a constant supply of liquid is often required during use of atomic emission / absorption spectrometer, and the instrument needs to be washed when the sample is replaced.

[0003] Currently, beakers, washing bottles and the like are used to hold liquid for instrument liquid feeding, the opening of the beaker is too large, and the liquid held therein is easily contaminated and volatile, the washing bottle is usually made of plastic, and is easily affected by temperature and contaminated during high-temperature testing, and in addition, the solution often needs to be filtered before being transferred to the beaker or washing bottle, which increases the possibility of contamination and the workload of the user. Currently, there is no special device for atomic emission / absorption spectrometer to solve the problems of easy introduction of foreign impurities and solvent evaporation during testing. SUMMARY

[0004] The utility model aims to provide a kind of for atomic emission spectrum and absorption spectrum test's exempt from to open cover liquid feeding device, to solve the problems existing in prior art, filter and liquid feeding can be simultaneously completed in the device, and coverless operation is realized.

[0005] To achieve the above object, the utility model provides the following scheme: the utility model provides a kind of for atomic emission spectrum and absorption spectrum test's exempt from to open cover liquid feeding device, comprising: liquid inlet bottle and sealing cover, the liquid inlet bottle bottle mouth is provided with sealing cover, the sealing cover is opened with sample inlet and liquid injection port, the sample inlet and the liquid injection port are connected with the liquid inlet bottle interior through the sealing cover.

[0006] According to the utility model provides a kind of for atomic emission spectrum and absorption spectrum test's exempt from to open cover liquid feeding device, the sealing cover side is provided with silica gel gasket.

[0007] According to the utility model provides a kind of for atomic emission spectrum and absorption spectrum test's exempt from to open cover liquid feeding device, the liquid injection port is frosted mouth, the liquid injection port is equipped with cover, and the cover top is provided with handle.

[0008] According to the utility model provides a kind of for atomic emission spectrum and absorption spectrum test's exempt from to open cover liquid feeding device, the liquid injection port is equipped with rubber plug.

[0009] The utility model provides a kind of for atomic emission spectrum and absorption spectrum test's open cover free liquid adding device, sample inlet nozzle is provided with silica gel pad, sample inlet nozzle is compatible with sample needle.

[0010] The utility model provides a kind of for atomic emission spectrum and absorption spectrum test's open cover free liquid adding device, the liquid inlet bottle top is threadedly connected with cover body, the sealing cover is arranged between the cover body with the liquid inlet bottle.

[0011] The utility model discloses the following technical effects:

[0012] Sealing cover is arranged on the top of liquid inlet bottle in the device, sample inlet nozzle and liquid injection port are arranged on the sealing cover, the sealing cover can be used with sample needle and also can be used with ground mouth funnel, realizes that liquid adding can be completed simultaneously in the testing process of liquid inlet device, open cover operation is free, filtering and liquid adding are completed simultaneously, avoid liquid volatilization and pollution caused by liquid adding and testing process. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is the overall structure section view of the utility model;

[0015] Figure 2 It is the top view of the sealing cover in the utility model;

[0016] Figure 3 It is the structure schematic view of the sealing cover in the utility model;

[0017] Figure 4 It is the structure schematic view of the rubber plug in the utility model;

[0018] Figure 5 It is the structure schematic view of the silica gel pad in the utility model;

[0019] Figure 6 It is the overall structure schematic view of the second embodiment of the utility model;

[0020] Figure 7 It is the structure schematic view of needle cylinder and needle cylinder filter membrane in the second embodiment of the utility model;

[0021] Figure 8 It is the structure schematic view of the third embodiment of the utility model;

[0022] Wherein, 1, cover; 2, sealing cover; 3, liquid inlet bottle; 4, sample inlet; 5, liquid injection port; 6, silica gel pad; 7, cover; 8, rubber plug; 9, needle cylinder; 10, needle cylinder filter membrane; 11, heater; 12, cooler; 13, filter layer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0025] Embodiment one:

[0026] As Figures 1-5 shown, the utility model provides a kind of for atomic emission spectrum and absorption spectrum test to open cover-free liquid feeding device, comprising: liquid inlet bottle 3 and sealing cover 2, liquid inlet bottle 3 bottle mouth is provided with sealing cover 2, sealing cover 2 is equipped with sample inlet 4 and liquid injection port 5, sample inlet 4 and liquid injection port 5 are connected with the inside of liquid inlet bottle 3 and communicate through sealing cover 2.

[0027] Liquid inlet bottle 3 top is connected with cover 1, and liquid inlet bottle 3 top is provided with external thread, and the inside of cover 1 is provided with internal thread, and cover 1 and liquid inlet bottle 3 are connected by internal thread and external thread.

[0028] Sealing cover 2 is blocked in sample bottle bottle mouth, located in cover 1 inside, i.e. sealing cover 2 is located between cover 1 and liquid inlet bottle 3, and sealing cover 2 is made of polytetrafluoroethylene material, and is provided with silica gel sealing gasket on the periphery, which can seal the bottle mouth of liquid inlet bottle 3.

[0029] Sample inlet 4 caliber is about 0.3cm, and is matched with atomic emission / absorption spectrum instrument sample needle, and sample inlet 4 is used to insert the sample needle of instrument, and is provided with silica gel pad 6 at sample inlet 4, and sample needle is sleeved into silica gel pad 6, and silica gel pad 6 plays the role of fixing sample needle.

[0030] The liquid injection port 5 is a 24# aperture ground port, which can be used in cooperation with a 24# standard ground sand core funnel, can be used in cooperation with the rubber plug 8 and the glass funnel, in the embodiment, the rubber plug 8 is a rubber plug 8 with a hole, and can be used in cooperation with the cover 7, the cover 7 is a 24# standard ground, during use, when the liquid injection port 5 is idle, the cover 7 is used as a lid to cover the liquid injection port 5 to prevent foreign matter from entering, the top of the cover 7 is provided with a handle to facilitate taking the cover 7 to seal the liquid injection port 5 or lifting the handle to take out the cover 7 from the liquid injection port 5, which is convenient for operation. The liquid injection port 5 is used for supplementing liquid, when the liquid in the bottle is insufficient, the liquid can be supplemented through the liquid injection port 5, and when the liquid does not need to be supplemented, the cover 7 is used to seal to avoid liquid evaporation and pollution caused by liquid adding and testing.

[0031] In the embodiment, the sealing cover 2 is arranged between the sample injection bottle and the cover body 1, which can directly filter the liquid (deionized water or dilute nitric acid) required in the experimental process, and avoid transferring the liquid from other instruments to a container for experiment after filtering; the liquid injection port 5 is designed as a ground port, which can be directly connected with various glass instruments and used in cooperation with a ground funnel, and normal pressure filtration is completed in the device; the liquid injection bottle 3 is used for filtering and adding liquid without opening the cover during testing, which avoids liquid evaporation and pollution caused by liquid adding and testing.

[0032] The cover body 1, the liquid injection bottle 3 and the sealing cover 2 are separate accessories, which are convenient to replace, the cover body 1 is threadedly connected with the liquid injection bottle 3, which is convenient for storage, the sealing cover 2 is provided with a silica gel sealing gasket on the side, which increases the sealing property and ensures that the sealing cover 2 is closely connected with the liquid injection bottle 3 during use, the sealing cover 2 is made of polytetrafluoroethylene material and has two openings, which are the sample injection tube port 4 and the liquid injection port 5, wherein the sample injection tube port 4 is used for inserting a sample injection needle of an instrument, and the liquid injection port 5 is used for supplementing liquid, the liquid injection port 5 is a 24# aperture ground port, which can be connected with various glass instruments with the same aperture, for example, can be used in cooperation with a 24# standard ground sand core funnel, can be used in cooperation with a 24# standard ground funnel, can be used in cooperation with the rubber plug 8 and the glass funnel, and can be used as a Buchner funnel to avoid transferring the solution required in the experiment to a liquid suction container in the testing process after filtering, and directly complete filtering and immediately use. The liquid injection device can complete filtering and liquid adding at the same time during testing, which avoids opening the cover, can avoid liquid evaporation and pollution caused by liquid adding and testing, and optimizes and simplifies the testing process for researchers, and saves time.

[0033] Embodiment two:

[0034] As Figure 6 and Figure 7As shown, the difference between this embodiment and Embodiment 1 is that the injection port 5 in this embodiment is cylindrical, and a syringe 9 and a syringe filter membrane 10 are used in conjunction with the injection port 5. The syringe 9 is a conventional syringe that can be purchased on the market. The syringe filter membrane 10 is used in conjunction with the syringe 9 to seal the syringe 9, maintaining the seal between the syringe 9 and the injection port 5, thereby ensuring the overall seal of the device. The syringe filter membrane 10 is inserted into the injection port 5, and the syringe 9 is inserted into the syringe filter membrane 10, completing the installation of the injection syringe 9. That is, the syringe filter membrane 10 and the syringe 9 can replace the 24# ground joint in the injection port of Embodiment 1, where the ground joint connection is used for filtration, while in this embodiment, the syringe is used for filtration.

[0035] Example 3:

[0036] like Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that it includes a temperature control module, which includes a heater 11 and a cooler 12. The heater 11 and the cooler 12 are installed in the liquid inlet bottle 3 to maintain the liquid temperature. It also includes a filter layer 13. In this embodiment, the filter layer has a multi-layer structure and is set in the sample inlet 4. It works in conjunction with the silicone pad 6 on the sample inlet 4 to improve the filtration efficiency.

[0037] The heater 11 and cooler 12 are connected to the inlet bottle 3 through a heat transfer medium. The temperature is adjusted according to the feedback from the temperature sensor to maintain a constant liquid temperature in the inlet bottle 3, which is beneficial to promoting the reaction rate.

[0038] The filter layer 13 comprises, from top to bottom, a pre-filtration layer, a fine filtration layer, an adsorption layer, an ultrafiltration membrane layer, and a sterile filtration layer. The pre-filtration layer, made of polytetrafluoroethylene (PTFE), is chemically resistant and suitable for pre-filtration of various chemical media, used for initial filtration of the incoming liquid. The fine filtration layer, made of polyvinylidene fluoride (PVDF), is chemically resistant and suitable for fine filtration, following the pre-filtration layer to provide more detailed filtration. The adsorption layer, made of activated carbon, removes organic solvents, chlorine, odors, and colors, and can remove specific substances from the incoming liquid process. The ultrafiltration membrane layer, made of polyacrylonitrile (PAF), is chemically resistant and suitable for ultrafiltration, further filtering large molecules. The sterile filtration layer, also made of PTFE, is chemically resistant and suitable for sterile filtration, especially in applications requiring high purity, ensuring the sterility of the final liquid. By incorporating the filter layer 13, different types of impurities can be effectively removed, improving liquid purity, reducing contamination of the spectroscopic testing instruments, and thus improving the accuracy and reliability of test results.

[0039] A viewing window is provided on the sealing cover 2. The viewing window is made of transparent material and is fixed on the sealing cover 2 to facilitate observation of the state of the internal liquid.

[0040] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0041] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope defined by the claims of the utility model.

Claims

1. A cap-free liquid addition device for atomic emission and absorption spectroscopy testing, characterized in that, The utility model relates to a liquid feeding bottle, which comprises: a liquid feeding bottle (3) and a sealing cover (2), the liquid feeding bottle (3) is provided with a sealing cover (2) at the bottle mouth, a sample inlet (4) and a liquid injection opening (5) are arranged on the sealing cover (2), and the sample inlet (4) and the liquid injection opening (5) are connected with the inside of the liquid feeding bottle (3) through the sealing cover (2).

2. The uncapping and liquid loading apparatus for atomic emission and absorption spectroscopy testing of claim 1, wherein: A silica gel sealing gasket is arranged on the periphery of the sealing cover (2).

3. The uncapping and liquid loading apparatus for atomic emission and absorption spectroscopy testing of claim 1, wherein: The liquid injection opening (5) is a frosted opening, and a cover (7) is arranged in the liquid injection opening (5), and a handle is arranged on the top of the cover (7).

4. The uncapping and liquid loading apparatus for atomic emission and absorption spectroscopy testing of claim 1, wherein: The liquid injection opening (5) is provided with a rubber plug (8).

5. The uncapping and liquid loading apparatus for atomic emission and absorption spectroscopy testing of claim 1, wherein: A silica gel gasket (6) is arranged in the sample inlet (4), and the sample inlet (4) is matched with a sample needle.

6. The uncapping and liquid loading apparatus for atomic emission and absorption spectroscopy testing of claim 1, wherein: A cover (1) is threadedly connected to the top of the liquid feeding bottle (3), and the sealing cover (2) is arranged between the cover (1) and the liquid feeding bottle (3).

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