Search results for keyword: chromatography
GB 13580.4-92 Electrode Method for Determination of pH Value of Atmospheric Precipitation
Atmospheric Precipitation pH Determination by Electrode Method
Summary
This paper presents the fundamentals, principle and operation process of using an electrode method to analyze the pH of atmospheric precipitation. Precipitation pH is a critical environmental parameter reflecting the nature o......
1137 
Hannah
GB/T3634-1995 Industrial Hydrogen Technical Indicators
Industrial Hydrogen Technical Index GB/T3634-1995
Hydrogen is an important fuel for industrial production. Rapid development and wide application in the petrochemical, chemical and atomic energy industries have promoted the development of hydrogen technology. Hydrogen technology has become a part......
GB/T7445-1995 pure hydrogen, high-purity hydrogen and ultra-pure hydrogen
GB/T 7445-1995 Hydrogen, High Purity Hydrogen and Ultra-high Purity Hydrogen
1 Scope
This standard specifies the requirements, sampling and chemical and physical testing of hydrogen, high purity hydrogen, and ultra-high purity hydrogen.
2 Normative References
The following documents are essent......
Instructions for use and maintenance of HPLC six-port valve injector
HPLC Six-Valve Injector Usage and Maintenance
High-performance liquid chromatography (HPLC) is a powerful technique used for the analysis of small molecules. HPLC utilizes a column, a mobile phase, a detector and a six-valve injector for analyte separation, collection and analysis. The six-valve ......
Material Chemical Analysis
Sample Analysis of Material Chemistry
Coal gasification is the process of transforming coal from a solid or liquid form into a gaseous state. This process has been utilized, to varying degrees, since the late 1700s when it was discovered that heating coal to a high temperature would produce a com......
Solution purification
Solution Purification
Solution purification is the process of refining a solution by removing impurities that are found within it. In chemistry and other scientific fields, solution purification is used to refine and increase the purity of a substance, making it more suitable for use in laborator......
Qualitative and quantitative analysis of chemical composition of plating bath
Qualitative and Quantitative Analysis of Bath CoatingChemical Components
Abstract
Bath coating as a special composite coating has been widely used in automobile, ship and other industries. In this paper, the physical and chemical characteristics of the bath coating were studied by means of the p......
Composition Analysis Method and Steps of Electroless Nickel Plating Solution
Component Analysis of Nickel Plating Solution
Nickel plating is a process of applying a thin layer of nickel over an object using a nickel plating solution. This process is useful for protecting against corrosion, providing a decorative finish, improving electrical conductivity, and enhancing wea......
Plasma spectrometer
Introduction
Ion chromatography (IC) is an analytical technique used to separate, detect, and quantify different ions within a solution. It is commonly used in the fields of pharmaceuticals, geochemistry, and industrial water analysis. This method is ideal for separating and quantifying inorganic......
separation factor
Separation coefficient
Separation coefficient is an important coefficient used to predict the fraction of an analyte that would be present in a given phase of a two-phase system. Separation coefficients are generally determined through chromatographic, but they can also be used to indicate the d......
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