摘要
建立了热解析-裂解-气相色谱/质谱法测定电子电气中多溴二苯醚（PBDEs）的方法。采用气相色谱-质谱总离子流和选择离子流对PBDEs进行定性和定量测定。对热解析温度,热解析时间,热解析升温速率和附件初始温度进行了优化,并进行了线性关系、精密度等试验。本方法线性范围200-1000 mg/kg,相关系数为0.995,检出限为50 mg/kg,相对标准偏差小于15%。本方法可直接固体进样,简化了前处理步骤,适用于电子电气产品中PBDEs的测定,满足欧盟Ro HS指令限量的检测要求。
A method for the detection of polybrominated diphenyl ethers（ PBDEs） in electrical and electronic equipments by thermal desorption-pyrolysis-gas chromatography-mass spectrometry has been developed. The qualitative and quantitative analysis for PBDEs was carried out by total ion chromatogram and selected ion chromatogram with gas chromatography-mass spectrometry. Thermal desorption temperatures,thermal desorption time,thermal desorption heating rate and the initial temperature of the attachment were optimized. The tests of linear correlation and precision were performed. The results show that： the linear range of the testing method is200 - 1000 mg / kg,the correlation coefficient is 0. 995,the detection limit is 20 mg / kg,the relative standard deviation is less than15%. Compared with the other method,the established method is rapid,sensitive,efficient and green without pre-treatment of samples,with which samples can be injected directly in solid phase. This method can be used to analyze PBDEs in electrical and electronic equipments and can meet the limit requirement for Ro HS directive.
出处
《分析试验室》
CAS
CSCD
北大核心
2015年第2期159-162,共4页
Chinese Journal of Analysis Laboratory
基金
国家质检总局科技计划项目(2012IK051)资助
关键词
多溴二苯醚
热解析-裂解-气相色谱-质谱法
电子电气产品
Polybrominated diphenyl ethers（PBDEs）
Thermal desorption-pyrolysis-gas chromatography-mass Spectrometry
Electrical and electronic products
