纺织品中邻苯二甲酸酯类增塑剂含量的测定

采用固相萃取方法（SPE）净化样品，用GC．MSD法测定及确证纺织材料中邻苯二甲酸酯类增塑剂含量。纺织材料试样经三氯甲烷超声波提取，提取液浓缩后用固相萃取净化，采用气相色谱-质谱仪（GC-MSD）测定，外标法定量，选择离子监测进行阳性确证。当添加邻苯二甲酸酯类增塑剂浓度为100～1000mg／kg时，该方法回收率为78％～108％，相对标准偏差为4．26％～9．89％，测定低限为10-50mg／kg，各项指标均满足有关要求。

Determination of phthalate plasticizer residues in textiles

This method applies solid phase extraction(SPE) to purify the samples,and uses gas chromatography-mass selection detector(GC-MSD) to determine and confirm contents of phthalate plasticizers in textiles.The samples were extracted with trichloromethane by ultrasonically assisted procedure.The extract was cleaned up with SPE and tested using GC-MSD with the quantization by external standard method and positive confirmation by selected-ion monitoring mode.While the level of 100~1000mg/g was fortified,the method provided recoveries of 78%~108%,relative standard deviations of 4.26%~9.89%,and determination limits of 10~50 mg/kg.The technical items conform to the related requirements.