100 results about "Electro spray" patented technology

The invention relates to a counter-ion adsorption high-voltage electrostatic spraying device and application thereof to preparation of a food sugar coating, and belongs to the technical field of equipment machinery and food processing. The device comprises a material conveying system, a high-voltage electrostatic spraying system, a sugar liquid supply system, a gas supply system, a sugar liquid recovery system, a microwave vacuum drying system and a control cabinet, the sugar liquid supply system and the gas supply system are both connected with the high-voltage electrostatic spraying system, the material conveying system is arranged below the high-voltage electrostatic spraying system, the material conveying system is connected with the microwave vacuum drying system, and the sugar liquid recovery system is further arranged below the material conveying system; the above systems are all controlled by a control cabinet. Through pulse switching of a high-voltage electrostatic field and a sugar liquid material, counter-ion charge accumulation of sprayed sugar liquid is realized, namely, positive charge sugar liquid (chitosan and the like) and negative charge sugar liquid (Arabic gum, carrageenan and the like) are alternately sprayed under the high-voltage electrostatic field, so that electrostatic adsorption and directional deposition of the sugar liquid on the surface of food are realized.

The invention relates to the field of printing system equipment, and discloses a piezoelectric spray valve which comprises a valve shell, a piezoelectric control assembly, a nozzle firing pin and a glue inlet module, the glue inlet module is fixedly arranged at the lower end of the valve shell, and a nozzle for spraying glue and a threaded sleeve for fixing the nozzle are arranged at the lower end of the glue inlet module. The piezoelectric control assembly is arranged in the valve shell and connected with a voltage control module, the voltage control module is provided with a lead connected with an external mechanism, one end of the nozzle firing pin is vertically arranged in the valve shell in a sliding mode and is in butt joint with the piezoelectric control assembly, and the position of the nozzle firing pin in the vertical direction is controlled by the piezoelectric control assembly. The other end of the nozzle firing pin extends into a glue inlet module at the lower end of the valve shell to control the amount of glue entering the nozzle, and a spraying range control structure is arranged at the lower end of the glue inlet module. Glue feeding amount and voltage change are automatically adjusted, spraying is regular and uniform, debugging time is saved, and the proficiency of operators is reduced.

The invention discloses an ionization device. Electrospray is an ionization mode, and after the electrospray is combined with a mass spectrometer or an ion mobility instrument, atoms and molecules can be analyzed or some microorganisms or cells can be directly analyzed. Based on the process that liquid fluid is atomized and expanded firstly and then gaseous fluid is compressed before entering an instrument in the electrospray process, a geometric structure cavity matched with the liquid fluid in shape is designed and used for spraying. By means of the mode that the shape is matched with the introduction process of the fluid, spray moves forwards as much as possible in a laminar flow mode, so that more stable spray fluid is obtained, and ions can be better introduced into an instrument for analysis.

The application discloses a kind of based on plasma atomization gas auxiliary electric spray ionization method, comprising the following steps: a) sample solution is introduced into electric spray needle;B) open plasma initiation device, make plasma initiation device discharge and generate plasma in plasma atomization gas gas path;C) atomization gas is introduced into plasma atomization gas gas path, and the atomization gas under the action of plasma forms plasma atomization gas;D) open high-voltage power supply, and sample solution is under the action of high-voltage electricity and plasma atomization gas and generates spray and forms sample ion, and the sample ion formed enters mass spectrometer by mass spectrometry inlet channel.This application can improve sensitivity, and under the premise that compound fragmentation dissociation does not occur, it is used for electric spray unfriendly solvent and difficult to detect low polarity compound detection, which can be compatible with normal phase liquid chromatography commonly used solvent, and can also reduce the influence of common complex matrix effect in electric spray ionization.

The invention discloses an integrated electrospray thruster transmitting module based on a 3D printing technology, and belongs to the technical field of spaceflight. The integrated electrospray thruster transmitting module is an integrated component which is integrally formed through a micro three-dimensional photoetching 3D printing technology, and a continuous fluid transmission channel from a liquid supply connector at the bottom end to a transmitting nozzle at the top end is arranged in the integrated electrospray thruster transmitting module; in the fluid flowing direction, the integrated electrospray thruster transmitting module sequentially comprises a liquid supply interface layer, a multi-layer flow channel structure and a transmitting layer from bottom to top. Integrated forming and high integration of the complex micro-channel structure are achieved, the array liquid supply uniformity is improved through the forked micro-channel structure, the size of sprayed liquid drops and the single-hole flow are reduced, and therefore emitter miniaturization is achieved, and the overall emission performance and working stability of the electrospray thruster are improved.

A heating device and a mass spectrometry device of a nanoelectrospray source, the heating device comprising: a support body and a heating body arranged on the support body, the heating body being configured to apply a heating effect to an ion transmission path and being provided with an ion transmission channel for the passage of ions or charged droplets; an ion inlet of the ion transmission channel corresponding to an ion outlet of the nanoelectrospray source, and an ion outlet of the ion transmission channel corresponding to an ion inlet of the mass spectrometer. The heating device can significantly improve the atomization and desolvation capability of the nanoelectrospray source, improve the signal response and repeatability, reduce the ion cluster background noise formed by solvent molecules, improve the sensitivity, and avoid the spray stop and signal loss caused by the heat-sensitive drying of the nanoelectrospray ion source at the end of the spray needle.

The present invention discloses an automatic electrospray spraying device and method for preparing samples for mass spectrometry imaging, wherein the automatic electrospray spraying device for preparing samples for mass spectrometry imaging includes: a spray capillary; an injection mechanism whose outlet end is connected to the inlet end of the spray capillary; a high-voltage power supply electrically connected to the spray capillary; and a robotic arm for driving the movement of the spray capillary. This solution generates micron-sized droplets through the electrospray principle to achieve derivatization reagent and matrix spraying. Compared with the original technology, it has an order of magnitude improvement in droplet fineness, ensuring that the derivatization reaction does not destroy the in-situ information, and ensuring that the grain size of the matrix crystal is small and evenly distributed, ensuring the quality of mass spectrometry imaging. In addition, this solution also uses a robotic arm to operate the spraying process, making the spraying process more flexible and efficient, and can automatically absorb and replace reagents, realizing fully automatic multi-reagent spraying sample preparation, such as superimposed spraying of derivatization reagent and matrix.

The invention relates to the field of detection, in particular to a method for determining the residual quantity of methoprene and methoprene in citrus through pre-column derivatization liquid chromatography-tandem mass spectrometry, and the method comprises the following steps: S1, preparation of a standard sample and a to-be-detected sample: S11, preparation of the standard sample, and S12, preparation of the to-be-detected sample; s2, preparation and derivation of a standard sample solution and a to-be-detected sample solution: S21, extraction, S22, purification and S23, derivation; s3, measuring; s4, establishing a linear equation; and S5, analyzing the sample to be detected. The technical problems that in the prior art, the ionization efficiency of methoprene and methoprene in the electrospray process is low due to the non-polar property of methoprene and methoprene, and electrospray ionization tandem mass spectrometry detection of methoprene and methoprene lacks the sensitivity required by trace analysis can be solved. The detection sensitivity of methoprene and methoprene in citrus fruits can be obviously improved.

The present invention proposes a device for electro-droplet reaction and product collection, which includes an air chamber, a counter electrode, a sample tray, a capillary and a cover plate, wherein a cover plate is provided above the tip of the capillary in a controllable gas environment provided by the air chamber, and its inner surface is designed to be a dome-shaped structure for condensing the droplets formed by electrospray and guiding the droplets to flow back to the sample tray, thereby reducing interference with the spray operation. This circulation reflux design allows the unreacted components to be recovered, continue to be sprayed through the capillary, and circulate to participate in the reaction process, thereby significantly improving the reaction efficiency. The device has a simple structure, high stability, and a wide range of applications. It provides an efficient and reliable droplet synthesis technology platform for chemical synthesis experiments and industrial production, effectively improving the efficiency and quality of chemical synthesis, and is of great significance for expanding the application scenarios of chemical synthesis.

The invention provides expiration detection equipment which comprises a shell, a mounting plate is arranged in the shell and connected with a mass spectrometer, a fixing frame and an ion source, an EESI vacuum cavity is formed in the ion source, the inner wall of the ion source is movably connected with a first connecting arm and a second connecting arm, the first connecting arm is connected with a sample nozzle, and the second connecting arm is connected with an electrospray nozzle. The inner wall of the ion source is detachably connected with baffles, the baffles define a transmission cavity, the transmission cavity is communicated with the interior of the mass spectrometer through a sample inlet, the baffles are connected with an ion transmission pipe, a sample nozzle is communicated with a collection cover through a pipe set, and an electrospray nozzle is communicated with an ESI solvent device. By arranging the EESI vacuum cavity, the sample nozzle and the electrospray nozzle, an ESI solvent forms primary charged reagent liquid drops through the electrospray channel to be sprayed out, the primary charged reagent liquid drops serve as a primary energy charge carrier of an ion source, sample aerosol exhaled by a subject does not need to be pretreated, the detection efficiency is high, and the detection process can be continuous.

The application discloses an electrostatic sprayer, which comprises a sprayer body, a handheld part connected with the sprayer body, a nozzle assembly arranged at one end of the sprayer body, and an electrostatic switch arranged at the other end of the sprayer body; an ion generator, a diaphragm pump and an electrostatic electrode are arranged in the sprayer body; a discharge needle is connected to the shell of the sprayer body; a solution kettle is connected to the bottom of the sprayer body; a power switch and a waterproof battery pack are arranged on the handheld part; the ion generator, the electrostatic electrode, the power switch, the discharge needle and the waterproof battery pack are connected through wires; the solution kettle, the diaphragm pump, the electrostatic electrode and the nozzle assembly are connected through a water pipe; the solution in the solution kettle flows to the electrostatic electrode through the water pipe, is charged and is sprayed out of the nozzle assembly. The application can realize human body discharge and tip discharge, and has strong waterproof performance and adsorption effect.

A system and method are provided to provide greater consistency and customization of results in charged spray implementations through improved feedback from and control of the electronic characteristics of the charging power supply. The system and method, in at least one form, use multiple levels of feedback and provide adjustments to react to the spray process.

This invention provides an in-situ MOF-modified stereocomposite polylactic acid (PLLA) micro / nanofiber self-powered filter membrane and its preparation method. The method comprises the following steps: ZIF-8 nanocrystals with uniform morphology and stable dimensions are prepared using a combination of microwave-assisted synthesis and template method. The ZIF-8 dispersion is then co-spun with a L-type polylactic acid (PLLA) / D-type polylactic acid (PDLA) blend solution using a combination of electrospraying and electrospinning to prepare the in-situ MOF-modified stereocomposite polylactic acid (PLLA) micro / nanofiber self-powered filter membrane. The prepared in-situ MOF-modified stereocomposite polylactic acid (PLLA) micro / nanofiber self-powered filter membrane exhibits controllable bead and mesoporous morphology, as well as the high specific surface area and surface activity imparted by ZIF-8, resulting in high filtration performance, excellent triboelectric output performance, and good self-cleaning ability. It has broad application prospects in the fields of personal protective equipment and intelligent monitoring.

The application discloses a nanoliter spray ionization mass spectrometry interface device, an analytical instrument and an ionization method, and belongs to the technical field of electrospray mass spectrometry ionization devices. The nanoliter spray ionization mass spectrometry interface device comprises an ion guide tube, a first electrode and a second electrode; the inner wall of the ion guide tube is plated with a conductive film; the ion guide tube has an ion transmission channel in the form of a funnel along the length direction of the tube; the ion transmission channel has a first end and a second end; the diameter of the ion transmission channel gradually decreases from the first end to the second end; the first electrode is connected to the end of the first end; and the second electrode is connected to the end of the second end. The device has a simple structure and is convenient to operate; high stability, high sample utilization and high ion transmission efficiency of the electrospray process under a nanoliter flow rate can be realized; positive and negative switching can be directly and rapidly performed under the condition of normal pressure and opening; and problems, such as unstable spraying caused by bad high pressure and complex parameter optimization process, are avoided.

This invention discloses an electrospray extraction / photoionization composite ion source for atmospheric pressure interface mass spectrometry, belonging to the field of mass spectrometry detection. It includes a sample transport and ionization mechanism, an extraction electrospray mechanism, and a vacuum ultraviolet light source mechanism. The extraction electrospray mechanism is fixedly connected to the sample transport and ionization mechanism, and the sample transport and ionization mechanism is fixedly connected to the vacuum ultraviolet light source mechanism. This invention utilizes the aforementioned electrospray extraction / photoionization composite ion source for atmospheric pressure interface mass spectrometry, enabling efficient ionization of gaseous and particulate organic components of different polarities, volatility, and molecular weights in the air. Through a reasonable structural design, it can operate under atmospheric pressure conditions, achieving the purpose of coupling with atmospheric pressure interface mass spectrometry.

The invention discloses an electrofluid spray film-making device, which belongs to the technical field of electrospray film-forming, and comprises a shell, a plurality of spray head assemblies, a liquid supply assembly, a gas supply assembly and a power supply module, a sealed cavity is formed in the shell, the multiple spray head assemblies are all installed on the shell, and each spray head assembly comprises a capillary tube and a protective sleeve which are coaxially arranged; a first channel and a second channel are formed in the protective sleeve, the capillary tube is coaxially sleeved with the first channel, the top end of the first channel is closed, the bottom end of the first channel extends out of the sealing cavity, and the second channel communicates with the sealing cavity and the first channel; the top end of each sealed chamber capillary tube penetrates out of the closed end of the first channel, and the bottom end of each sealed chamber capillary tube extends out of the bottom end of the first channel and faces the receiving substrate; the liquid supply assembly is used for inputting liquid into the capillary tubes of all the sealing cavities, the gas supply assembly is used for inputting gas into the sealing cavities, and the power supply module is used for providing high-voltage electricity for the capillary tubes of the sealing cavities.

The invention relates to a transmission desorption electrospray low-pressure ion mobility spectrometry which comprises a transmission desorption electrospray ion source, an interface electrode and a low-pressure ion migration tube, the interface electrode is a metal sheet electrode with a through hole in the center, and the transmission desorption electrospray ion source is connected with the low-pressure ion migration tube through the interface electrode. The ion mobility spectrometry can realize efficient desorption spray ionization of substances difficult to volatilize in the detection process, the sample detection process is simplified, the working air pressure is lower than the atmospheric pressure, the detection sensitivity can be improved, furthermore, the ion mobility spectrometry is provided with a desolvation area and is combined with desolvation gas, the detection sensitivity can be further improved, and the detection accuracy is improved. High-sensitivity detection of anesthetic drugs such as propofol, etomidate, fentanyl and the like in blood can be realized through transmission-type desorption electrospray and low-pressure ion mobility spectrometry.

The application belongs to the technical field of electrostatic spraying of plant protection aviation, and particularly relates to a quick-release electrostatic centrifugal nozzle. The quick-release centrifugal nozzle is powered by an integrated motor, and the motor power output end drives the quick-release centrifugal rotating disc to rotate. The integrated motor power output end and the quick-release centrifugal rotating disc are connected through a quick-release structure, and a spring is arranged between the concave hole and the convex block. When the quick-release centrifugal rotating disc needs to be replaced, the quick-release centrifugal rotating disc is pushed inward, and the spring is compressed. Since the convex block of the quick-release centrifugal rotating disc is an arc-shaped structure with a narrow front and a wide rear, the quick-release centrifugal rotating disc is rotated to an angle without the concave hole of the motor output end, and then the quick-release centrifugal rotating disc can be quickly pulled out. The convex block of the quick-release centrifugal rotating disc of another structure is inserted into the concave hole of the motor output end, and the replacement of the quick-release centrifugal rotating disc is completed.

This invention discloses a method for preparing a positively charged nanofiltration membrane using 3D electrostatic spray printing. The method includes the following steps: S1, uniformly mixing a polymeric membrane matrix material, a pore-forming agent, a membrane modifier, and an organic solvent, and preparing a support membrane for the nanofiltration membrane via a phase inversion method; S2, using piperazine and trimesoyl chloride as the aqueous and organic phase monomers, respectively, spraying the monomer solution onto the polymeric support membrane using 3D electrostatic spray printing to prepare a piperazine-trisoyl chloride intermediate layer; S3, using polyethyleneimine and trimesoyl chloride as the aqueous and organic phase monomers, respectively, spraying the monomer solution onto the intermediate layer using 3D electrostatic spray printing to prepare a polyethyleneimine-trisoyl chloride positively charged outer layer. After heat treatment, the positively charged nanofiltration membrane is obtained. This invention provides a simple, precise, and controllable method for preparing a positively charged nanofiltration membrane, which exhibits good selective separation ability for magnesium ions and lithium ions.

The invention relates to a fertilizing device capable of adjusting the fertilizing amount for navel orange planting and a use method of the fertilizing device, and the fertilizing device comprises a walking carrier, a liquid medicine supply system, an electrostatic spraying system, a canopy information sensing system and an intelligent control system. The intelligent control system dynamically adjusts the voltage applied to the suppression electrode array according to the density of the upper portion of the tree crown and the target fruit area information of the middle and lower portions obtained by the sensing system, so that a downward repulsion electrostatic field with controllable intensity is generated, the electric field forces charged fog drops to move towards the middle and lower portions of the tree crown, active control over the fertilizer liquid space deposition position is achieved, and the fertilizer liquid space deposition position is controlled. Meanwhile, the system cooperatively adjusts the spray flow, finally, precise and adjustable feeding of the fertilization deposition amount of the target area on the middle and lower portions of the crown is achieved, the problem that a traditional leaf fertilizer cannot effectively cover the inner chamber and fruits on the middle and lower portions is solved, precise fertilization according to needs is achieved, the fertilizer utilization rate is increased, and waste and pollution are reduced.

This invention discloses a method for preparing single-pore hollow silicon spheres. Using positively charged polystyrene spheres as templates, the method employs electrostatic spray granulation to coat the polystyrene surface with a layer of silica sol. The core is then removed by calcination, resulting in hollow silicon spheres. Because the polystyrene spheres are positively charged, during electrostatic spray granulation, the silicon shell is repelled to one side by a positive electric field of the same charge. Finally, calcination yields single-pore hollow silicon spheres. These spheres can effectively carry functional substances such as fragrances, drugs, and catalysts into their internal space for sustained release, while maintaining good structural strength, thus showing promising practical applications. Furthermore, the preparation method of this invention is simple, allows for mass production, and is beneficial for industrial production and application.

The utility model discloses a direct insertion type disposable electrospray ion source, belongs to the technical field of electrospray ion sources, and particularly relates to a disposable electrospray ion source suitable for a portable mass spectrometer, which comprises a sample introduction glass capillary tube, a copper tube electrode, a liquid storage filter element, a spray capillary tube, an upper section outer tube and a lower section outer tube, the mass spectrometer is simple in structure and low in cost, can stably and reliably increase voltage for a solution, can realize rapid sample loading, can rapidly form an electrospray ion flow with enough duration and an enough stable mass spectrum signal, not only greatly reduces the working pressure of a rear-end mass analyzer vacuum system, but also improves the anti-pollution capability of equipment, and is suitable for large-scale popularization and application. And meanwhile, a sample introduction system with a complex structure and high price does not need to be configured, so that the risk of cross contamination of a positive sample to a negative sample is fundamentally avoided.

The invention discloses a desorption electrospray and secondary photoionization mass spectrometry imaging device combined with an ion funnel, which comprises a double-light-source secondary ionization component, a two-stage ion funnel, a desorption electrospray ionization source and a three-degree-of-freedom displacement imaging platform for carrying a glass slide of a measured object, the desorption electrospray ionization source is arranged above the three-degree-of-freedom displacement imaging platform and located on one side of the glass slide, an electrospray sampling pipe for sampling molecule-ion droplet clusters is arranged at an inlet of the double-light-source secondary ionization assembly, and the electrospray sampling pipe is arranged above the three-degree-of-freedom displacement imaging platform and located on the other side of the glass slide; an outlet of the double-light-source secondary ionization assembly is connected with an inlet of the two-stage ion funnel, and an outlet of the two-stage ion funnel is externally connected with mass spectrometry equipment. Through the integrated design of double-light-source same-cavity secondary ionization, gas phase doping and the two-stage ion funnel, the ionization efficiency and the ion transmission efficiency of the to-be-analyzed object can be remarkably improved.

The utility model relates to a desolvation transmission-type desorption electrospray low-pressure ion mobility spectrometry, which comprises a transmission-type desorption electrospray ion source, an interface electrode and a low-pressure ion migration tube, the transmission-type desorption electrospray ion source is connected with the low-pressure ion migration tube through the interface electrode, the ion mobility spectrometry can realize high-efficiency desorption electrospray ionization of substances difficult to volatilize in the detection process, the sample detection process is simplified, the working pressure is lower than the atmospheric pressure, the detection sensitivity can be improved, and further, the detection accuracy is improved. The ion mobility spectrometry is provided with the desolvation area and is combined with the desolvation gas, so that the detection sensitivity can be further improved, and the application scene of IMS field detection is expanded.

The invention relates to the technical field of mass spectrometry, in particular to a polycyclic aromatic hydrocarbon detection method. The polycyclic aromatic hydrocarbon detection method comprises the following steps: respectively preparing polycyclic aromatic hydrocarbon standard substance series solutions and a to-be-detected polycyclic aromatic hydrocarbon sample solution; the polycyclic aromatic hydrocarbon standard substance series solution comprises a plurality of polycyclic aromatic hydrocarbon standard substance solutions with different concentrations; the polycyclic aromatic hydrocarbon standard substance series solution and the to-be-detected polycyclic aromatic hydrocarbon sample solution comprise the same amount of internal standard and the same amount of derivative reagent; respectively ionizing the polycyclic aromatic hydrocarbon standard substance series solution and the polycyclic aromatic hydrocarbon sample solution to be detected through an electrochemistry-assisted electrospray method, and then carrying out mass spectrum detection; constructing a standard curve reflecting peak intensity and polycyclic aromatic hydrocarbon concentration according to the detection result of the polycyclic aromatic hydrocarbon standard substance series solution, and substituting the detection result of the to-be-detected polycyclic aromatic hydrocarbon sample solution into the standard curve to obtain the polycyclic aromatic hydrocarbon concentration in the to-be-detected polycyclic aromatic hydrocarbon sample solution.

The invention relates to a method for detecting tertiary amine type niash substances. The method aims at solving the problems that in electrospray ionization source mass spectrometry analysis of tertiary amine type niash substances, parts with structural differences are lost in the form of neutral fragments, mass spectrometry data of the tertiary amine type niash substances are basically the same, and qualitative analysis of structural identification cannot be carried out through the mass spectrometry data. According to the invention, a tertiary amine type niash substance is converted into a corresponding N-oxide through an oxidation pretreatment method, and the protonation position of the tertiary amine type niash substance in an electrospray ion source is changed, so that a part with functional group difference in the structure can generate fragments with positive electrons, and the characteristics of functional groups in the structure are reflected; the purpose of structural identification qualitative analysis through mass spectrum characteristic fragment data is achieved. The method is simple and convenient to operate, is suitable for mass spectrometry of a conventional electrospray ionization source and a neutral gas collision cell, and can provide an effective technical means for reliable identification and judicial expertise of the substance.

The invention relates to the technical field of two-dimensional layered membrane batch preparation, and discloses a GO-PEI layered membrane batch preparation process, which comprises: preparing a GO dispersion liquid and a PEI solution, the solvents of the GO dispersion liquid and the PEI solution being a mixture of absolute ethyl alcohol and ultrapure water; spreading the base film to obtain a flat base layer; coating the GO dispersion liquid and the PEI solution on the surface of the substrate layer at the same time by adopting a double-needle electrostatic spraying process to obtain a GO-PEI composite film; and carrying out high-temperature crosslinking modification on the GO-PEI composite membrane to obtain the GO-PEI layered membrane. Compared with the prior art, the GO-PEI layered membrane prepared by the method has better nanofiltration performance and operation stability, and a double-needle electrostatic spraying process used in the preparation process is simple to operate, wastes are easy to recycle, the automation degree is high, the production efficiency is high, and large-scale production is easy.

A system and method are provided to provide greater consistency and customization of results in charged spray implementations through improved feedback from and control of the electronic characteristics of the charging power supply. The system and method, in at least one form, use multiple levels of feedback and provide adjustments to react to the spray process.

The present invention discloses a composite ionization source device for simultaneous mass spectrometry analysis of substances of different polarities, comprising an electrospray extraction ionization source device and a dielectric barrier discharge device. The inlet of the dielectric barrier discharge device is connected to the outlet of the electrospray extraction ionization source device, which is used to connect to the inlet of a mass spectrometer. The solvent electrospray portion of the electrospray extraction ionization source device includes polar solvent electrospray and weakly polar solvent electrospray. In this solution, the two ionization source devices, the electrospray extraction ionization device and the dielectric barrier discharge device, are connected in series to achieve efficient ionization of polar substances and weakly polar and non-polar substances in sample spray droplets, respectively, thereby helping to improve the coverage of mass spectrometry analysis.