GB/T 44367-2024 《Determination of restricted 2,4-diamino-pyrimidine-3-oxide in cosmetics—High performance liquid chromatography》 Related products

The standard GB/T 44367-2024 "Determination of diaminopyrimidine oxides in cosmetics" High performance liquid chroma-tography, HPLC "describes in detail the high performance liquid chromatograph method for the determination of diaminopyrimidine oxides in cosmetics. The standard applies to hair cosmetics such as water, emulsion and cream, and specifies the detection limit of the method to be 3.0 mg/kg and the quantitative limit to be 10.0 mg/kg. The standard covers the determination principle, reagents and materials, instrumentation, sample preparation and experimental procedures, etc. It emphasizes the use of High Performance Liquid Chromatograph and Diode Array Detector for qualitative and quantitative analysis. Through ultrasonic extraction and liquid-liquid extraction, the solution to be tested is finally obtained for accurate determination. This standard provides an important technical basis for cosmetic safety testing and helps to ensure the health and safety of consumers.