Determination of alkylphenol(AP) and alkylphenol polyethoxylates(APEO) in textiles by HPLC

In order to break down the technological barrier set by the European Union and to ensure the export of textile products,a simple and rapid HPLC method was described for the simultaneous determination of the residues of AP and APEO in textiles.The residues of octylphenol(OP),nonylphenol(NP),octylphenol polyethoxylates(OPEO) and nonylphenol polyethoxylates(NPEO) in the samples were extracted with methanol by Soxhlet extraction.The chromatographic separation conditions and the pretreatment conditions were optimized.The detection limit was(0.010 mg/L) for OP,(0.020 mg/L) for NP and OPEO,and(0.050 mg/L) for NPEO at(S/N=5.) The recovery ranged from 96.82% to 103.39% while the RSD was ranging from 1.04% to 5.48%.This method is applied in the analysis of some textiles exported to the European Union and the results demonstrates that this method can fully satisfy the demand of the analysis of textiles for export.