Inorganic analytical reagents Inorganic analytical reagents are commonly used inorganic chemicals for chemical analysis. Its purity is higher than that of industrial products with less impurities. 
Organic reagents for inorganic analysis are organic compounds used for the determination, separation, and enrichment of elements in inorganic analysis, as well as special organic compounds such as extractants, chelating agents, and indicators. General solvents, organic acids and organic bases. These organic reagents must have good sensitivity and selectivity. With the development of analytical chemistry and chemical industry, such reagents with better sensitivity and selectivity will be developed, such as the complexing ability of some metals (such as alkali metals, alkaline earth metals) and ammonium ions since 1967. This is true of Crown ether compounds.
Primary standards are high purity, few impurities, good stability, and a constant chemical composition. Among the reference reagents, there are capacity analysis, pH measurement, heat value measurement, and the like. Each category has a first benchmark and a working benchmark. Where the first benchmark must be certified by the National Institute of Metrology, the production unit uses the first benchmark as the benchmark for working benchmark products. At present, the reference reagents for commercial operations mainly refer to the capacity analysis work standards in the capacity analysis category [content range is 99.95% to 100.05% (weight titration)]. Generally used to calibrate titrants.
Standard substance is a chemical substance used for chemical analysis, instrument analysis, or a chemical used to calibrate an instrument. Its chemical composition, content, physicochemical properties and contained impurities must be known and complied with or recognized. Micro-analytical reagents Micro-analytical reagents are used for microanalytical reagents that permit only a one-hundredth percent (1% to 15 milligrams by weight, approximately 0.01 to 2 milliliters) of a substance to be measured. .
Organic Analytical Standards Organic analytical standards are chemical reagents used as a comparison when determining the composition and structure of organic compounds. Its components must be precisely known. Can also be used for micro analysis.
Pesticide analytical standards The Pesticide analytical standards are suitable for use in gas chromatography for the analysis of pesticides or for the determination of pesticide residues. Its content requires precise. There are solutions prepared from trace amounts of a single pesticide, and there are also mixed solutions prepared from a variety of pesticides.
Refractive index liquid is a high-purity, stable liquid known for its refractive index and is used to determine the refractive index of crystalline materials and minerals. The refractive index is indicated on the outside of each package.
The normal solution is an aqueous solution containing one gram of equivalent solute in one liter of solution, that is, a solution having a concentration of 1N. Indicators Indicators are substances that change their color due to the presence of certain substances. It is mainly used to indicate the endpoint of the titration in the volume analysis. Generally can be divided into acid-base indicator, redox indicator, adsorption indicator and so on. In addition to analysis, indicators can also be used to test for the presence of certain harmful or toxic substances in gases or solutions.
Test paper is a small dry paper sheet impregnated with an indicator or reagent solution to check the presence of a compound, element or ion in a solution, and also for medical diagnosis. Instrument analysis reagent
Instrumental analytical reagents are reagents used in the analysis of samples using special instruments designed according to the principles of physical, chemical or physical chemistry. Atomic Absorption Spectrometry Standards
Atomic absorption spectroscopy standards are standard reagents for analysis of samples using atomic absorption spectroscopy.
Chromatography (For chromatography) reagents refer to reagents and materials used in gas chromatography, liquid chromatography, gas liquid chromatography, thin layer chromatography, column chromatography, etc., and include fixatives, carriers, and solvents.
The electron microscope (For electron microscopy) reagent is a reagent for fixing, embedding, dyeing, etc. used for research work in the fields of biology and medicine using an electron microscope.
Solvent for NMR spectroscopy Solvent for NMR spectroscopy is mainly a deuterated solvent (also known as ** reagent or deuterated reagent), which is a solvent in which the hydrogen in the organic solvent structure is replaced by deuterium (**). . In the NMR analysis, the deuterated solvent may not show a peak, and the sample will not interfere with the hydrogen spectrum analysis.
Polarography The reagent for polarography refers to the reagents required for polarographic analysis and qualitative analysis.
Spectrography Spectrography reagents usually refer to highly pure reagents that have been analyzed by emission spectroscopy.
Spectrophotometric pure reagent refers to the solution used in the spectrophotometric analysis and has a certain wavelength transmittance for qualitative analysis and quantitative analysis.
Organic reagents for inorganic analysis are organic compounds used for the determination, separation, and enrichment of elements in inorganic analysis, as well as special organic compounds such as extractants, chelating agents, and indicators. General solvents, organic acids and organic bases. These organic reagents must have good sensitivity and selectivity. With the development of analytical chemistry and chemical industry, such reagents with better sensitivity and selectivity will be developed, such as the complexing ability of some metals (such as alkali metals, alkaline earth metals) and ammonium ions since 1967. This is true of Crown ether compounds.
Primary standards are high purity, few impurities, good stability, and a constant chemical composition. Among the reference reagents, there are capacity analysis, pH measurement, heat value measurement, and the like. Each category has a first benchmark and a working benchmark. Where the first benchmark must be certified by the National Institute of Metrology, the production unit uses the first benchmark as the benchmark for working benchmark products. At present, the reference reagents for commercial operations mainly refer to the capacity analysis work standards in the capacity analysis category [content range is 99.95% to 100.05% (weight titration)]. Generally used to calibrate titrants.
Standard substance is a chemical substance used for chemical analysis, instrument analysis, or a chemical used to calibrate an instrument. Its chemical composition, content, physicochemical properties and contained impurities must be known and complied with or recognized. Micro-analytical reagents Micro-analytical reagents are used for microanalytical reagents that permit only a one-hundredth percent (1% to 15 milligrams by weight, approximately 0.01 to 2 milliliters) of a substance to be measured. .
Organic Analytical Standards Organic analytical standards are chemical reagents used as a comparison when determining the composition and structure of organic compounds. Its components must be precisely known. Can also be used for micro analysis.
Pesticide analytical standards The Pesticide analytical standards are suitable for use in gas chromatography for the analysis of pesticides or for the determination of pesticide residues. Its content requires precise. There are solutions prepared from trace amounts of a single pesticide, and there are also mixed solutions prepared from a variety of pesticides.
Refractive index liquid is a high-purity, stable liquid known for its refractive index and is used to determine the refractive index of crystalline materials and minerals. The refractive index is indicated on the outside of each package.
The normal solution is an aqueous solution containing one gram of equivalent solute in one liter of solution, that is, a solution having a concentration of 1N. Indicators Indicators are substances that change their color due to the presence of certain substances. It is mainly used to indicate the endpoint of the titration in the volume analysis. Generally can be divided into acid-base indicator, redox indicator, adsorption indicator and so on. In addition to analysis, indicators can also be used to test for the presence of certain harmful or toxic substances in gases or solutions.
Test paper is a small dry paper sheet impregnated with an indicator or reagent solution to check the presence of a compound, element or ion in a solution, and also for medical diagnosis. Instrument analysis reagent
Instrumental analytical reagents are reagents used in the analysis of samples using special instruments designed according to the principles of physical, chemical or physical chemistry. Atomic Absorption Spectrometry Standards
Atomic absorption spectroscopy standards are standard reagents for analysis of samples using atomic absorption spectroscopy.
Chromatography (For chromatography) reagents refer to reagents and materials used in gas chromatography, liquid chromatography, gas liquid chromatography, thin layer chromatography, column chromatography, etc., and include fixatives, carriers, and solvents.
The electron microscope (For electron microscopy) reagent is a reagent for fixing, embedding, dyeing, etc. used for research work in the fields of biology and medicine using an electron microscope.
Solvent for NMR spectroscopy Solvent for NMR spectroscopy is mainly a deuterated solvent (also known as ** reagent or deuterated reagent), which is a solvent in which the hydrogen in the organic solvent structure is replaced by deuterium (**). . In the NMR analysis, the deuterated solvent may not show a peak, and the sample will not interfere with the hydrogen spectrum analysis.
Polarography The reagent for polarography refers to the reagents required for polarographic analysis and qualitative analysis.
Spectrography Spectrography reagents usually refer to highly pure reagents that have been analyzed by emission spectroscopy.
Spectrophotometric pure reagent refers to the solution used in the spectrophotometric analysis and has a certain wavelength transmittance for qualitative analysis and quantitative analysis.
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