建立了树脂工艺品中半挥发性有机物(SVOCS)的超声萃取–气相色谱检测方法。对超声萃取条件进行了研究,优化了气相色谱参数。结果表明,样品用三氯甲烷在60℃下超声萃取40 MIn,选择HP–5色谱柱时,气相色谱(fId)测定半挥发物总量时可获得良好的灵敏度和准确的定量结果。方法的相对标准偏差小于5%(n=6),检测限为2 Mg/kg。4个含量水平样品的6个实验室3次平行测定结果表明,实验室内测定结果的相对标准偏差为1.61%~2.94%,实验室间测定结果的相对标准偏差为5.96%~8.35%。A method was developed for determination of the semi-volatile organic compounds(SVOC) in resin craft by ultrasonic extraction–gas chromatography(GC).The ultrasonic extraction conditions were investigated and GC parameters were optimized.Test results showed that good sensitivity and accurate quantitative performances were achieved by GC–FID when the samples were ultrasonic–extracted with chloroform for 40 min at 60℃ and HP–5 capillary was used.The relative standard deviations(RSDs,n=6) of actual samples were all less than 5% and the detection limit was 2 mg/kg.RSDs of the determination results for 4 content levels were 1.61%–2.94% by datas from a lab, and 5.96%–8.35% by datas from different labs, which were calculated according to the test results of 3 replicates by 6 labs.国家质检总局科技计划项目(2012IK124
