超声波提取-气相色谱法测定食品包装材料中的有机磷酸酯

摘要

建立了食品包装材料中三（1，3-二氯丙基）磷酸酯、磷酸三氯丙酯2种有机磷酸酯含量测定的气相色谱检测方法。对前处理过程中超声波萃取条件进行优化：选择丙酮为萃取溶剂，用量为20mL，萃取时间为30min。试验结果表明：2种有机磷酸酯的线性范围为0．1～50mg/L，检出限为0．04mg/kg，方法的加标回收率为89．2％～96．2％，相对标准偏差为2．62％～4．78％。%An analytical method for determination of organophosphorus triesters ,such as Tris(2-chloropro-pyl)Phosphate(TCPP) and Tris(1,3-dichloro-2-propyl)Phosphate (TDCP) in food packing materials was es-tablished by gas chromatography method .The samples were extracted by supersonic extraction and the optimum conditions of extraction were obtained as the following:acetone used as the extraction solvent , the extraction time was 30min and the solvent volume was 20mL.The linear ranges of 2 kinds of organophosphorus triesters were 0.1~50mg/L,and the detection were 0.04mg/kg.The method recoveries were in the range of 89.2%~96.2%,and the method precisions were 2.62%~4.78%.