纺织品中邻苯二甲酸酯类增塑剂含量的测定

Determination of phthalate plasticizer residues in textiles

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。

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.