色谱2012，Vol.30Issue(7)：647-653,7.DOI:10.3724/SP.J.1123.2012.03013
仿真饰品中邻苯二甲酸酯类增塑剂的含量测定和迁移风险考察
Determination of phthalic acid esters in imitation jewellery and investigation of their migration risk
摘要
Abstract
A reliable gas chromatography-mass spectrometry (GC-MS) method was developed for the determination of 14 phthalic acid esters ( PAEs) in imitation jewellery. The influences of sample pretreatment methods including microwave extraction, ultrasonic extraction, accelerated solvent extraction (ASE) and Soxhlet extraction on the determination of PAEs were investigated. The migration risk of dibutyl phthalate ( DBP), bis(2-ethyl hexyl) phthalate ( DEHP) and dioctyl phthalate (DOP) in plastic imitation jewellery was investigated under the simulated body temperature and sweat environment within 0 h to 168 h. The results showed that the target compounds can be effectively extracted with hexane-acetone (1:1, v/v) under microwave extraction for 35 min. The limit of quantification (LOQ) of the method was 5 mg/kg for 12 PAEs (25 mg/kg for diisononyl phthalate (DINP) and diisodecyl phthalate (DIDP)). The calibration curves were linear within 0. 1 - 50 mg/L (0. 5 - 250 mg/L for DINP and DIDP) with the correlation coefficients above 0. 99. The recoveries ranged from 90. 95% to 98. 67% at three spiked levels. The migration risk of DEHP was higher than DBP and DOP with 0. 75% dissolved after soaking for 72 h under the simulated conditions. The sensitivity, recovery and selectivity of the method can meet the requirements of the practical work.关键词
气相色谱-质谱法/微波萃取/邻苯二甲酸酯/仿真饰品/迁移风险Key words
gas chromatography-mass spectrometry(GC-MS)/microwave extraction/ phthalic acid esters(PAEs)/imitation jewellery/ migration risk分类
化学化工引用本文复制引用
赖莺,黄宗平,葛秀秀,林睿,陈和秀..仿真饰品中邻苯二甲酸酯类增塑剂的含量测定和迁移风险考察[J].色谱,2012,30(7):647-653,7.基金项目
国家质检总局科研计划项目(2009IK075,2011IK048) （2009IK075,2011IK048）
