Determination of the 9 perfluorinated compounds in textiles by liquid chromatography-tandem mass spectrometry
A liquid chromatography-tandem mass spectrometry method was established to determine 9 PFAS in textiles.The sample was extracted by methanol ultrasound,filtered,and tested on the machine.Shiseido 150 mm chromatographic column separation,gradient elution with methanol 20 mmol/L ammonium acetate aqueous solution,multi reaction monitoring(MRM)negative ion mode scanning,quantitative analysis using external standard method.This method has good linearity within the linear range of 5.02 ng/mL～834.4 ng/mL,with a correlation coefficient of 0.9937～0.9992 and a detection limit of 3.34 μg/kg～48.98 μg/kg,with a recovery rate of 82.14％～103.43％and a relative standard deviation of 2.05％～7.86％.This method has simple sample pretreatment,fast analysis speed,and high sensitivity,and is suitable for the detection and analysis of 9 PFAS in textiles and textile products.
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