气相色谱–质谱法快速测定塑料中磷酸三甲苯酯异构体  

Rapid Determination of Tricresyl Phosphate Isomers in Plastics by Gas Chromatography–Mass Spectrometry Method

作　　者：洪锦清[1] 陈明[1] 李敬[1] 程玉龙[1] 费桂琴[1] 

机构地区：[1]江苏出入境检验检疫局轻工产品与儿童用品检测中心,江苏扬州225009

出　　处：《化学分析计量》2014年第1期45-47,共3页Chemical Analysis And Meterage

基　　金：江苏出入境检验检疫局科技计划项目(2012KJ28)

摘　　要：建立了气相色谱-质谱联用法，用于测定塑料材料中3种磷酸三甲苯酯同分异构体磷酸三邻甲苯酯、磷酸三间甲苯酯、磷酸三对甲苯酯。采用30℃/min升温速率，3种磷酸三甲苯酯同分异构体均在10 min内出峰，质量浓度在0.0～2.4 mg/L范围内与色谱峰面积呈良好的线性关系，相关系数不小于0.9990，检出限均为0.1μg/L，加标回收率为90.6%～108.2%，测定结果的相对标准偏差为0.6%～4.8%（n=4）。该方法灵敏度高，精确度满足检测要求。A gas chromatography-mass spectrometry was established to measure three tricresyl phosphate isomers （tri-o-cresyl phosphate, tri-m-cresyl phosphate and tri-p-cresyl phosphate）which were restricted in European standard for safety of toys. A relatively fast temperature program with the rate of 30℃/min was used, and the simultaneous determina-tion of three tricresyl phosphate isomers was achieved rapidly. Three tricresyl phosphate isomers were all eluted within 10 min, the concentrations of which were linear with the chromatography peak area in the range of 0.0-2.4 mg/L with the cor-relation coefficient not less than 0.999 0, the detection limit was 0.1μg/L, the recoveries were 90.6%-108.2%, and RSD were 0.6%-4.8%（n=4）. The method is highly sensitive, its precision and accuracy can meet the detection requirement.

关 键 词：磷酸三甲苯酯 同分异构体 气相色谱-质谱法 

分 类 号：O657.7[理学—分析化学]