色谱 ›› 2011, Vol. 29 ›› Issue (12): 1173-1178.DOI: 10.3724/SP.J.1123.2011.01173

• 研究论文 • 上一篇    下一篇

气相色谱-质谱法测定热塑性弹性体中的多环芳烃

郑琳1*, 陈海婷2, 陈建国1, 冯震2, 高书峰2, 周杰1   

  1. 1. 宁波出入境检验检疫局, 浙江 宁波 315012; 2. 浙江三博聚合物有限公司, 浙江 嵊州 312400
  • 收稿日期:2011-06-14 修回日期:2011-08-12 出版日期:2011-12-28 发布日期:2012-01-15
  • 通讯作者: 郑琳,硕士,高级工程师,主要从事消费品中有毒有害物质检测研究
  • 基金资助:

    宁波市自然科学基金项目(No. 2011A610083)

Determination of polycyclic aromatic hydrocarbons in thermoplastic elastomer by gas chromatography-mass spectrometry

ZHENG Lin1*, CHEN Haiting2, CHEN Jianguo1, FENG Zhen2, GAO Shufeng2, ZHOU Jie1   

  1. 1. Ningbo Entry-Exit Inspection and Quarantine Bureau, Ningbo 315012, China; 2. Zhejiang Sanpo Polymer Co., Ltd., Shengzhou 312400, China
  • Received:2011-06-14 Revised:2011-08-12 Online:2011-12-28 Published:2012-01-15

摘要: 建立了一种简单、准确的测定热塑性弹性体中16种多环芳烃(PAHs)的气相色谱-质谱(GC-MS)方法。考察了样品制备、萃取溶剂、萃取方法、时间以及温度对厂家制备的阳性热塑性弹性体样品中PAHs提取效率的影响,确定了萃取条件和方法。样品经甲苯超声萃取、浓缩后用环己烷溶解、二甲亚砜液液萃取净化后采用GC-MS进行分析,内标法定量。通过对不同材质阳性热塑性弹性体样品的加标回收、精密度试验等对建立的方法进行评价,16种PAHs的平均回收率为70%~117%,精密度为0.2%~10.8%。该方法适合于热塑性弹性体中PAHs的测定。

关键词: 多环芳烃, 气相色谱-质谱法, 热塑性弹性体

Abstract: A simple and accurate method for the determination of 16 polycyclic aromatic hydrocarbons (PAHs) in thermoplastic elastomer by gas chromatography-mass spectrometry (GC-MS) has been developed. The effects of various operational parameters (e.g. sample pretreatment, extraction solvent, extraction method, extraction temperature, extraction time, etc) on the extraction efficiency were carefully investigated by analyzing different kinds of positive PAHs thermoplastic elastomer samples made by the manufacturer. The samples were extracted ultrasonically with toluene, concentrated to about 1 mL and then redissolved by cyclohexane. After being purified by dimethyl sulfoxide liquid-liquid extraction, 16 PAHs in the sample were analyzed by GC-MS and quantified by internal standard method. Different kinds of thermoplastic elastomer materials and products were analyzed by this method with the recoveries ranged from 70% to 117% and the relative standard derivations between 0.2% and 10.8%. The method is acceptable for the determination of PAHs in thermoplastic elastomer materials and products.

Key words: polycyclic aromatic hydrocarbons, thermoplastic elastomer., gas chromatography-mass spectrometry(GC-MS)