Gas chromatography plays a critically important role in the detection of resin residues in Panax notoginseng saponins. Panax notoginseng saponins serve as the core raw material for cardiovascular and cerebrovascular drugs such as Xueshuantong, and their purification process commonly employs ...

Variations in the concentrations of indium and tin in the etching solution directly affect the etching rate and pattern precision. By determining their contents, the etching conditions can be precisely controlled to avoid incomplete or excessive etching caused by concentration fluctuations, thereby ...

As a non-selective herbicide, the efficacy of glyphosate aqueous solutions is directly correlated with the content of its active ingredient and the corresponding counter-ions forming the salt. If the content of isopropylamine ions or dimethylamine ions in the product fails to meet the specified ...

Bisphenol A (BPA), a chemical widely used in the production of polycarbonate plastics and epoxy resins, is quietly present in numerous everyday items—from mineral water bottles and food can linings to shopping receipts. However, this material, which brings convenience, has been confirmed by research ...

Hexavalent chromium is highly toxic and carcinogenic. It can severely contaminate water bodies and pose significant risks to human health, making it a key pollutant under strict regulatory control in water quality monitoring. HJ1470-2026 "Water Quality — Determination of Hexavalent Chromium — Post...

Calcium gluconate is an organic calcium salt widely used in food and pharmaceutical products, primarily for calcium supplementation and the treatment of calcium deficiency. During the processes of oxidation, fermentation, and degradation, glucose can produce a small amount of oxalic acid as a ...

The choline chloride content is a core indicator of choline chloride wettable powder, directly determining the product's application value and safety. When the content meets the specified standard, it ensures that, as a plant growth regulator, choline chloride effectively promotes the transport of ...

Volatile halogenated hydrocarbons are a class of organic compounds characterized by volatility and halogen substituents, commonly found in industrial solvents, refrigerants, fire extinguishing agents, and other applications. These substances can enter the human body through the respiratory system. ...

Aflatoxin B₁ is a highly toxic secondary metabolite produced primarily by Aspergillus flavus and Aspergillus parasiticus. Among the aflatoxin family, it exhibits the strongest toxicity and the widest distribution. It exerts its toxic effects by inhibiting intracellular DNA and RNA synthesis and ...