Method for precisely measuring ultraviolet light absorber in household product and pretreatment system

• Main Authors: TANG SUIPING, CHEN MANYING, LI JINQING
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a method for precisely measuring an ultraviolet light absorber in a household product and a pretreatment system. The method comprises the following steps: putting the householdcoating product into an extraction tube of an extraction and purification integrated test tube, adding ethyl acetate for dispersion, adding an ammoniation organic reagent for extraction, performing vortex, ultrasonic treatment, centrifugation and the like to obtain an extracting solution, performing purification by using a purification column, performing concentration by using a high-efficiency concentration and enrichment device, dissolving residues by using a formic acid and methanol-acetonitrile mixed solution, performing vortex, performing filtration, collecting a filtrate to obtain a to-be-detected solution, and performing detection by using a liquid chromatography-tandem mass spectrometer. According to the method, pretreatment is simple and rapid, the matrix matching method is adopted, the problem that the