51 results about "Atomic emission spectrometry" patented technology

The invention relates to the technical field of material analysis, and particularly discloses an ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry)-based automatic quantitative analysis method for primary and secondary elements in a high-temperature alloy, which comprises the following steps: dissolving a to-be-analyzed high-temperature alloy sample in a mixed acid of sulfuric acid and nitric acid to obtain a to-be-detected sample solution; feeding the sample solution to be detected into an atomizing chamber through a peristaltic pump, and collecting emission spectrum data of each element; establishing a standard curve of the concentration and emission intensity of each element by using a standard solution with known concentration; pre-processing the received emission spectrum data through a control system and a data processing module of the instrument; the data processing module compares the preprocessed emission spectrum data with a standard curve through a multiple linear regression method; and generating a detailed analysis report, and transmitting the generated analysis report to terminal equipment of a user through a printer or a network. Through an optimized sample dissolving method, a data preprocessing technology and a real-time correction algorithm, the accuracy and the stability of an analysis result can be effectively improved.

The invention provides a spark source atomic emission spectrometry determination method for acid-soluble aluminum and inclusion aluminum, and belongs to the technical field of assessment of inclusions in steel. The spark source atomic emission spectrometry determination method for acid-soluble aluminum and inclusion aluminum comprises the following steps: establishing a calibration curve of all aluminum, then determining integral intensities of inclusion aluminum, all aluminum and acid-soluble aluminum in a sample under corresponding conditions, and calculating the intensity of the inclusion aluminum by using a difference value between the integral intensities; selecting two standard samples with adjacent strength according to the strength of aluminum inclusion in the sample, and calculating a calibration coefficient K according to the aluminum content Al% lt; the excitation rate F is calculated according to the peak integral intensity of the inclusion aluminum and the integral intensity of the total aluminum in the 0.0007% standard sample, the inclusion aluminum content Als% is equal to K * F * (IAlt-IAls), and the content of the acid-soluble aluminum is equal to the difference between the content of the total aluminum and the content of the inclusion aluminum. According to the method, the accuracy of a measurement result is effectively improved while high analysis speed, low cost and simplicity and convenience in operation are ensured.

The application provides a kind of for inductively coupled plasma mass spectrometry alkaline liquid automation processing device and method, it is related to automation processing technical field.The inductively coupled plasma mass spectrometry alkaline liquid automation processing device of the described device is controlled and adjusted by intelligent control module to temperature control unit, acid-base adjusting unit and mixed uniform control unit in acid-base titration module, and the control and adjustment of liquid level detection unit in constant volume module by intelligent control module, realize the automation processing of alkaline liquid, can effectively improve the automation pretreatment efficiency and analysis efficiency of inductively coupled plasma mass spectrometry alkaline liquid, improve the accuracy and reliability of analysis result, can adapt to the rapid analysis demand of large-scale alkaline liquid sample.The alkaline liquid automation processing device of the application can be widely applied to the pretreatment of inductively coupled plasma mass spectrometry and inductively coupled plasma atomic emission spectrometry alkaline liquid.

The invention relates to the technical field of zinc hydrometallurgy, and discloses a method for rapidly determining the content of calcium, iron and barium in strontium carbonate by using ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry), a strontium carbonate sample is directly dissolved by using dilute nitric acid, filtration is not needed, and the pretreatment process is simplified; meanwhile, by optimizing instrument parameters and analysis wavelength of ICP-AES, rapid, synchronous and accurate determination of three impurity elements of calcium, iron and barium is realized. The method is easy and convenient to operate, high in analysis speed, good in precision and high in accuracy, can meet the requirement for rapid monitoring of the strontium carbonate raw material quality in the zinc hydrometallurgy industry, and provides reliable technical support for optimizing lead removal process parameters, improving the cathode zinc quality and reducing the production cost.

According to the method for testing the purity of the metal rubidium, an organic alcohol-nitric acid solution system is adopted to dissolve a metal rubidium sample, organic alcohol can accelerate the dissolution rate of the metal rubidium sample, on one hand, the contact time of the metal rubidium sample and air can be greatly shortened, and the spontaneous combustion risk of the metal rubidium sample in the air is reduced; therefore, the safety of the whole test process is improved; on the other hand, the dissolution efficiency is improved, so that the possibility that the metal rubidium sample is exposed in the air for a long time is reduced, impurities in the air are prevented from being mixed into a sample system to interfere a test result, and the accuracy of the test result is improved; meanwhile, the nine impurity elements are accurately tested by combining two high-sensitivity and high-precision analysis means of inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry, and the accuracy of the test result is further guaranteed by calculating the total mass of the impurities and converting the purity of the metal rubidium.

The invention discloses a method for rapidly determining the content of iron in dichloroethane and application. The method comprises the following steps: uniformly mixing an extraction agent with a dichloroethane solution to be detected, carrying out an extraction reaction, and taking a supernatant to obtain a sample solution to be detected, the extraction agent having an extraction effect on ferrous ions and ferric ions; preparing an iron standard solution, determining the content of the iron element by adopting inductively coupled plasma atomic emission spectrometry, and drawing a standard curve; and determining the concentration of the iron element in the to-be-detected sample solution by adopting an inductively coupled plasma atomic emission spectrometry, and calculating the iron content in the to-be-detected dichloroethane solution by combining the standard curve. The method can accurately determine the iron content in the dichloroethane sample, has the characteristics of high efficiency, simplicity and convenience, omits the tedious sample pretreatment step, saves the time and experiment cost, reduces the drug use cost and the generation of waste liquid, and greatly improves the analysis efficiency.

This application belongs to the field of analytical testing, specifically relating to a method for testing the homogeneity of major elements in materials. The method includes: using an X-ray energy dispersive spectroscopy (EDS) instrument to determine the content of major elements in n particles of a sample under test. 主 Obtain a sample of principal element content data, where n is not less than 10000; plot the measured data into a two-dimensional triangular scatter plot and calculate the area of ​​the scatter plot as S. EDS The content of major elements in the sample was determined by inductively coupled plasma atomic emission spectrometry (ICP). 主 If |EDS 主 -ICP 主 |<2% and S EDS If |EDS < 64, the sample elemental distribution is uniform; if |EDS 主 -ICP 主 |<2% and 64 EDS If |EDS <100, the elemental distribution of the sample is relatively uneven; if |EDS 主 -ICP 主 |<2% and S EDS If the value is greater than 100, the elemental distribution in the sample is severely uneven. This method offers high accuracy, short cycle time, high efficiency, and low cost.​

The invention discloses a method for detecting elements in molten iron. The method comprises the following steps: S1, sampling and preparing a sample; and S2, detecting by using spark discharge atomic emission spectrometry, wherein the parameter setting comprises argon flushing time of 2-7 seconds, pre-combustion time of 8-12 seconds and exposure time of 9-13 seconds. By means of the method, rapid analysis of ultralow sulfur with the mass fraction smaller than 0.0050% in the molten iron and simultaneous analysis of elements such as carbon, silicon, manganese, phosphorus, nickel, chromium, copper, arsenic, tin, vanadium and titanium can be achieved, and the method has wide application prospects in the iron smelting industry.

The invention relates to the technical field of mineral content detection, in particular to a method for simultaneously determining total barium and sulfur in barite through acid dissolution-inductively coupled plasma emission spectrometry. The method comprises the following steps: adding nitric acid and hydrochloric acid into barite, heating on an electric heating plate, adding a chromium internal standard solution and a nitric acid solution, heating, cooling, and determining by using an inductively coupled plasma emission spectrometer. According to the method, simultaneous determination is achieved in an acid dissolution mode, the detection efficiency is improved, time and cost are saved, the whole test solution preparation process is relatively simple, accurate volume determination is not needed, sample digestion treatment can be completed through common means such as electric hot plate heating under conventional laboratory conditions, and the method is more stable, easy and convenient to operate, easy to master and suitable for large-scale popularization and application. The reproducibility is good, and popularization and application are convenient. Meanwhile, the method can improve the accuracy and precision of a measurement result, so that the measurement result is more reliable.

The invention provides a heterogeneous material laser-induced breakdown spectroscopy detection method and system, and relates to the technical field of atomic emission spectrometry detection, and the method comprises the following steps: ablating a plurality of positions of a heterogeneous solid material sample by using pulse laser, and collecting a monopulse plasma emission spectrum; classifying the spectrums into hit spectrums and missed spectrums according to the comparison relationship between the signal intensity of the characteristic spectral line of the target element and background noise; calculating the characteristic intensity of the hit spectrum and the sampling frequency of the laser ablation on the target element; and according to the hit characteristic intensity and the sampling frequency, calculating the concentration of the target element by using a pre-established quantitative relation model representing the linear relation between the product of the hit characteristic intensity and the sampling frequency and the concentration of the target element. The method can effectively solve the problems of poor signal-to-noise ratio and low sensitivity of a traditional overall average analysis method caused by laser pulse discrete sampling of the heterogeneous material, and improves the detection performance of trace elements in the heterogeneous material.

The invention relates to a method for detecting the content of aluminum and potassium in cesium-containing aluminum brazing flux, and belongs to the technical field of chemical detection and analysis. The detection method provided by the invention comprises the following steps: S1, adding water into a cesium-aluminum-containing brazing flux sample, uniformly mixing, then adding concentrated nitric acid with the volume of V1 and perchloric acid with the volume of V2, boiling to concentrate the total volume to V2, cooling, diluting, and filtering to obtain a to-be-detected solution; and S2, respectively analyzing the concentration of the aluminum element and the concentration of the potassium element in the to-be-detected liquid at the wavelength of 396.150-396.154 nm and the wavelength of 766.488-766.494 nm by adopting an inductively coupled plasma emission spectrometry to obtain the aluminum content and the potassium content in the cesium-containing aluminum soldering flux sample. The detection method provided by the invention solves the problems of instrument corrosion caused by high fluorine in the aluminum soldering flux, serious cesium matrix interference and low determination accuracy, and is high in accuracy, good in precision and high in sensitivity.

This utility model relates to the field of inductively coupled plasma atomic emission spectrometry (ICP-AES) and discloses a sample preparation device for ICP-AES. This utility model solves the problems of insufficient mixing, inconvenient reagent addition, environmental pollution, and easy loss of analytes in existing digestion and acid removal processes for samples such as molybdenum ore. In this device, the stirring paddle precisely controls its rotation speed based on real-time feedback from viscosity and density sensors on the inner wall of the digestion vessel. Combined with reagent addition tubes of different diameters and a reliable sealing structure, it achieves accurate and safe reagent addition, improving digestion efficiency and operational convenience. The acid removal cylinder features a surrounding electric heating wire combined with multi-position temperature sensors for precise temperature control. The suction fan and activated carbon adsorption layer effectively purify acid mist, ensuring efficient acid removal, preventing loss of analytes, reducing laboratory environmental pollution, and laying a solid foundation for subsequent accurate determination.

The invention relates to the technical field of chemical analysis, in particular to a tungsten carbide / cobalt polymer powder sample dissolving method and a chemical component content determination method.According to the method, a mixed solution of phosphoric acid and sulfuric acid cooperates with aqua regia to serve as a dissolving solution to dissolve a tungsten carbide / cobalt polymer powder sample to be dissolved, and rapid dissolving of tungsten carbide / cobalt polymer powder can be achieved; the reaction time is short and a high-temperature oxidation process is not needed; tungsten, cobalt and iron elements in the tungsten carbide / cobalt polymer powder are measured by combining inductively coupled plasma atomic emission spectrometry, a sample is treated once, the chemical component content of the tungsten carbide / cobalt polymer powder is measured under the same medium and the same condition, multiple sample dissolution and accumulation of detection errors can be effectively avoided, and the detection accuracy is improved. The method has the advantages of low detection limit, high sensitivity, wide linear range, high precision, good stability, less interference and capability of simultaneously determining multiple elements, and solves the problems of long sample dissolving time, long chemical component content determination period and low efficiency of tungsten carbide / cobalt polymer powder.

This invention provides a method for characterizing the particle size and composition of nanoparticles using asymmetric flow-field coupled inductively coupled plasma atomic emission spectrometry (ICP-AES), comprising: S1. pre-treating the asymmetric flow-field instrument in an anaerobic environment; S2. loading a sulfate-reducing bacteria-treated sulfate solution into the asymmetric flow-field instrument, and obtaining the characterization results after a sample introduction stage, a flushing stage, and a rinsing stage. This invention utilizes sulfate-reducing bacteria in conjunction with an asymmetric flow-field instrument to detect sulfate solutions, using the sulfate-reducing bacteria to convert sulfate ions into sulfur (S), thereby achieving effective detection of sulfate ions.

The invention relates to a method for determining silicon dioxide in quartz glass based on a high-temperature melting reaction-inductively coupled plasma atomic emission spectrometer. The method comprises the following steps: crushing and grinding a sample into powder; adding a strong alkali flux into the obtained powdery sample, and uniformly mixing to obtain a mixture; melting the mixture at high temperature; leaching reactants with hot water and fixing the volume; drawing a silicon element concentration-spectral line emission intensity standard curve; testing the content of silicon in the sample solution; and calculating the content of silicon dioxide according to the measured content of silicon. The method comprises the following steps: adding a strong alkali solvent into a powdery sample obtained by grinding the sample, carrying out a high-temperature melting reaction, heating water to dissolve a reactant, and determining the content of silicon in the solution by adopting an inductively coupled plasma atomic emission spectrometer, so as to calculate the content of silicon dioxide in the quartz glass sample.

Resin microparticles with reduced metallic and leached ion content and excellent dielectric properties are provided. Furthermore, a method for manufacturing such resin microparticles is provided. The resin microparticles of embodiments of the present invention have a total content of component A of less than 100 ppm as determined by inductively coupled plasma atomic emission spectrometry, a total content of leached ion component B of less than 100 ppm as determined by ion chromatography, and a dielectric loss tangent of 0.0050° or less at a frequency of 10 GHz. Component A includes Al, Ba, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, S, Si, Sr, and Zn. Ionic component B includes fluoride ions, chloride ions, nitrite ions, bromide ions, nitrate ions, phosphate ions, and sulfate ions.

The application discloses a method for analyzing phases of iron in ores, and belongs to the technical field of mineral analysis. The method comprises the following steps: after magnetic separation of an ore sample, performing iron valence state analysis on a magnetic product, and distinguishing a magnetic iron phase, a pseudo hematite phase and a magnetic intergrowth phase based on the deviation degree of the ratio of divalent iron to trivalent iron from the theoretical ratio of magnetite; sequentially performing iron carbonate phase selective leaching-oxidation post-treatment, hematite-limonite phase reduction-inhibition synergistic selective dissolution, iron sulfide phase liquid phase complexation-solid phase charring step-by-step extraction and iron silicate phase alkali fusion digestion on a non-magnetic product; and finally, performing plasma atomic emission spectrometry on each phase to-be-measured solution and total iron digestion liquid, and calculating the iron content of each phase. The application solves the key problems in traditional iron phase analysis, such as incomplete classification of magnetic iron, poor selectivity of non-magnetic phase and insufficient wide use.

The invention discloses a method for analyzing a refractory material by a rapid glass melting method-inductively coupled plasma atomic emission spectrometry, which comprises the following steps of: preparing a lithium tetraborate-lithium metaborate protective film in a platinum yellow crucible, preparing a standard quality control sample into a molten glass sheet, and dissolving into a to-be-tested solution; determining the content of components in the quality control sample by inductively coupled plasma atomic emission spectrometry, and drawing a working curve; and then measuring the component content in the refractory material sample to be measured, and measuring data by using the same processes of manufacturing the melt sheet, dissolving the melt sheet, filtering the sample to be measured and using the inductively coupled plasma atomic emission spectrometry. According to the method, the rapid analysis of SiO2, Al2O3, CaO, Fe2O3, TiO2, K2O, MnO, MgO, P2O5, Na2O, Cr2O3 and ZrO2 in the refractory material can be completed at the same time, and the detection time is shortened.

The invention discloses a microwave digestion solution and a microwave digestion method for a high-purity alumina-based catalyst, and relates to the technical field of substance determination methods. The microwave digestion method comprises the following steps: placing a pretreated sample in a polytetrafluoroethylene cup, adding a microwave digestion solution, sealing and placing in a microwave digestion instrument for digestion, and determining the element content of the obtained digestion solution by adopting an inductively coupled plasma atomic emission spectrometry method, the volume ratio of hydrochloric acid to nitric acid to water in the microwave digestion solution is (5-3): (3-5): 1. On one hand, product consistency and effectiveness and stability of a detection result can be ensured, and introduction of exogenous pollution is avoided; on the other hand, digestion is rapid, consumption of manpower, material resources, time, reagents and the like is saved, efficiency can be effectively improved, and the method is suitable for synchronous treatment and detection analysis of large-batch samples in the actual operation process.

Inductively coupled plasma (ICP) analyzers use an ICP torch to generate plasma in which the sample is atomized and ionized. Analysis of the atomic ions can be performed using atomic analysis, such as mass spectrometry (MS) or atomic emission spectrometry (AES). Particle-based ICP analysis involves analyzing particles (e.g., cells, magnetic beads, or laser ablation plumes) by atomizing and ionizing them in an ICP torch chamber followed by atomic analysis. In mass cytometry, the mass tags of the particles are analyzed using mass spectrometry, such as ICP-MS. The systems and methods of this application include one or more of the following: a removable ICP torch holder assembly, an external ignition device, an ICP induction coil including annular fins, a particle-suspended sample introduction jet, and its ICP analyzer.

This application provides a method for measuring the Zr element distribution in an Al-Zr alloy system and its application. After dehydrating an aluminum-zirconium alloy sample, the first alloy phase is separated using separation solution A to prepare second alloy phase particles. These particles are then dissolved using solution B to prepare a second alloy phase solution. An equal volume of the aluminum-zirconium alloy sample is then dissolved using solution C to prepare an aluminum-zirconium alloy solution. Finally, inductively coupled plasma atomic emission spectrometry (ICP-AES) is used to measure the Zr content in both the second alloy phase solution and the aluminum-zirconium alloy solution, achieving quantitative measurement of the Zr element distribution in the Al-Zr alloy system. This method can accurately measure the Zr element distribution across the entire region, improve the detection sensitivity for low-concentration Zr, effectively distinguish the Zr content in different phases, and reduce nanoscale phase dissolution errors. It has the advantages of simple operation, good reproducibility, low implementation cost, and ease of widespread implementation.

The invention discloses a method for determining the content of a boron element in a cobalt-based alloy, which adopts inductively coupled plasma atomic emission spectrometry for determination and comprises the following steps: preparing a solution to be determined, preparing a standard solution, drawing a standard working curve, determining the solution to be determined and processing data, a preparation method of the to-be-detected solution comprises the following steps: weighing 0.4000 g of a sample in a boron-free quartz flask, adding hydrochloric acid, slowly adding a hydrogen peroxide solution until the reaction is complete, evaporating to be nearly dry at the temperature of below 180 DEG C, supplementing hydrochloric acid and nitric acid, heating and dissolving at the temperature of below 180 DEG C until the reaction is stopped, adding (1 + 1) mixed acid of sulfuric acid and phosphoric acid and mannitol, heating at the temperature of 280-300 DEG C until smoking, taking down after 30 minutes, slightly cooling, adding hydrochloric acid, and stirring for 30 minutes to obtain the to-be-detected solution. Boiling until salt is completely dissolved, cooling, and diluting with water to a constant volume in a 100mL plastic volumetric flask. The method disclosed by the invention has relatively high accuracy and good repeatability and stability.

The invention relates to the technical field of analytical chemistry, and discloses a method for measuring thallium in lead smelting slag through polyurethane foam plastic adsorption enrichment-inductively coupled plasma atomic emission spectrometry. The preparation method comprises the following steps: putting a sample into a polytetrafluoroethylene beaker, sequentially adding hydrochloric acid, nitric acid, hydrofluoric acid, perchloric acid and sulfuric acid, heating and decomposing, after completely decomposing, adding aqua regia, heating and dissolving salts, adding water for diluting, dropwise adding bromine water into the solution until the solution is in stable light yellow, shaking uniformly, adding a piece of polyurethane foam plastic, carrying out vibration adsorption, taking out the foam plastic after adsorption, and drying to obtain the polyurethane foam plastic. The method comprises the following steps: washing with water, squeezing water, putting the foamed plastic into a test tube, adding a sulfurous acid-hydroquinone mixed solution for releasing, taking out the foamed plastic after releasing, uniformly shaking, and measuring on an inductively coupled plasma emission spectrum. The method is simple and rapid to operate, and has reference value in the fields of lead smelting slag analysis method standard formulation, standard sample development, environmental protection and the like.

The application discloses a transducing element electric explosion whole-process parameter joint diagnosis method and device, belongs to the photoelectric detection technical field, the joint diagnosis device is composed of three parts of a bridge area temperature measurement module based on a multispectral radiation thermometry method, a plasma temperature / electron density measurement module based on an atomic emission spectrometry method and a synchronous trigger module, according to the radiation / emission spectrum characteristics of the bridge area temperature rise, plasma generation and explosive initiation stages in the transducing element electric explosion process, a set of transducing element bridge area temperature and plasma characteristic parameter joint measurement system is developed by combining the multispectral radiation thermometry technology and the atomic emission spectrometry temperature measurement technology, different spectral detection methods and temperature inversion algorithms are adopted for different stages in the transducing element electric explosion process, and high time resolution, wide range synchronous measurement of the transducing element whole-process bridge area temperature and plasma temperature / electron density can be realized.

The present invention relates to a process cartridge. A process cartridge detachably mounted to a main body of an electrophotographic apparatus, wherein a surface protective layer of an electrophotographic photosensitive member contains electrically conductive particles; a content of the electrically conductive particles is 20.0 to 70.0 vol% of the surface protective layer; a volume resistivity of the surface protective layer is 1.0 x 10 9 to 1.0 x 10 14 Ω·cm; toner particles have at least one multivalent metal element selected from the group consisting of aluminum, magnesium, calcium, and iron; and a total content of the multivalent metal elements in the toner particles is 0.10 to 1.25 μmol / g as measured by inductively coupled plasma atomic emission spectrometry (ICP-AES).

This application provides a method for phase analysis of manganese in ores, belonging to the field of phase analysis of ores. The method involves weighing an ore sample and sequentially leaching it with silver nitrate solution to separate the manganese sulfate phase; then leaching it with aluminum nitrate solution under heating, adding a mixed solution of isoamyl alcohol and isoamyl acetate as a first inhibitor to separate the manganese carbonate phase; followed by stepwise leaching with sulfurous acid solution and hydroxylamine sulfate-sulfuric acid solution, adding a mixed solution of n-butanol and ethyl acetate as a second inhibitor to separate the manganese oxide phase; and finally, the remaining residue is digested by ashing to obtain the silicate phase. The manganese content of each phase digest is determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). This application rationally selects various possible forms of manganese in the ore and scientifically selects the leaching agent for each phase, ensuring that the leaching agent of the previous phase does not leach manganese from the subsequent phases, thus guaranteeing accurate determination of each phase.

The invention discloses a point discharge atomic emission spectrum analysis device and method for detecting helium and argon, and the device comprises a gas dilution instrument, a flow meter, a point discharge system, a circulating water pump, a high-voltage power supply, a focusing lens and a small CCD spectrum detector, the top is a cooling circulating water storage tank, and two sides are symmetrically provided with a pair of tip electrodes. The method comprises the following steps: helium or argon is conveyed by the gas dilution instrument and the flow meter, passes through the point discharge system and then enters the point discharge chamber to be excited; the generated light is focused by the focusing lens to enter the optical fiber, and is finally detected by the small CCD spectrum detector, so that the intensities of helium and argon emission spectral lines are independently or simultaneously measured, and finally, the corresponding concentrations of helium and argon samples are obtained through calculation. The device has the characteristics of strong excitation capability, high excitation efficiency, strong anti-interference capability, good stability and the like.

The invention discloses a general detection method for 21 element impurities in an injection, and belongs to the technical field of medical analysis, 21 elements to be detected are divided into two groups for detection by adopting an inductively coupled plasma mass spectrometry and inductively coupled plasma atomic emission spectrometry combined technology: the first group of elements comprise lithium, aluminum, vanadium, cobalt, nickel, copper, arsenic, cadmium, antimony, mercury and lead, and the second group of elements comprise lithium, aluminum, vanadium, cobalt, nickel, copper, arsenic, cadmium, antimony, mercury and lead; detecting by adopting inductively coupled plasma mass spectrometry; the second group of elements comprise boron, silicon, calcium, titanium, chromium, iron, zinc, molybdenum, tin and barium, and are detected by adopting an inductively coupled plasma atomic emission spectrometry. According to the method, a grouping principle based on instrument characteristics and element properties is provided, optimal configuration of detection resources is achieved, and the limitation of a single technology is effectively avoided.

The invention relates to the technical field of atomic emission spectrum analysis and detection, in particular to a miniature magnetic field assisted solution anode glow discharge atomic emission spectrum device which comprises a sample injection system, a waste liquid discharge system, an excitation source system, a magnetic field system and an analysis and detection system. The tip of the platinum needle is used as a cathode, and the fountain-shaped convex liquid surface of the overflowing solution of the ceramic tube is used as a discharge anode, so that a liquid discharge system is constructed. The tip of the cathode platinum needle discharges to form point discharge; the ceramic tube has hydrophilicity, so that the overflowed solution can stably flow out, and the discharge stability is enhanced; an external magnetic field can cool a cathode platinum needle and deflect charged particles in the plasma to generate a magnetic confinement effect; the continuity of the test system can be realized through sample introduction of the flow injection sample injector; the surge flask is additionally arranged between the flow injection sampler and the ceramic tube, so that the pulsation of the flow injection sampler can be reduced, and the stability of discharge plasma is improved.