A high performance liquid chromatographic(HPLC) method was developed for the simultaneous extraction and determination of ten phenols,including pentachlorophenol,2,3,4,5-tetrachlorophenol,2,3,4,6-tetrachlorophenol,2,3,5,6-tetrachlorophenol,2,4,5-trichlorophenol,2,4,6-trichlorophenol,2-phenylphenol,3-phenylphenol,2-naphthol and 4-nitrophenol in textiles.The samples were ultrasonically extracted with methanol.The separation and quantification of ten phenols were achieved on an ZORBAX SB-C18 column(4.6 mm×150 mm,5 μm ) with mobile phase of acetonitrile-0.01 mol/L phosphate and the diode array detector(DAD) at 220 nm and 310 nm.Lab-built UV spectroscopy library and external standards were employed for the identification and quantification of target compounds.The result indicated that the calibration curves of ten phenols showed good linear relationships between peak areas and concentrations in the range of 0.3-37 mg/L,with their correlation coefficients of 0.999 1-0.999 5The limits of detection(LODs,S/N≥3) of ten phenols were in the range of 0.003 0-0.041 1 mg/kg,and the limits of quantitation(LOQs,S/N≥10) were 0.010 0-0.137 0 mg/kg.The average recoveries of ten phenols from 3 typical textile matrices including cotton,wool and ramie, at three spiked concentration levels were in the range of 81%-105% with relative standard deviations(RSDs) of 1.7%-8.5%.The proposed method could be used to identify and detect the 10 phenols simultaneously,which makes it effective in residue surveillance of phenols in textile samples. |