气相色谱-质谱软件参数设置对测定电子电气产品中十溴二苯醚回收率的影响  

Effect of Parameters of GC-MS Software on the Recovery of decaBDE in Electronic and Electrical Products

作　　者：刘春旭 Liu Chunxu(Material Analysis Center,Wistron(Zhongshan)Co.,Ltd.,Zhongshan 528437,China)

机构地区：[1]纬创资通(中山)有限公司材料分析中心,广东中山528437

出　　处：《广东化工》2021年第12期178-180,共3页Guangdong Chemical Industry

摘　　要：在正常测试中影响十溴二苯醚回收率的因素非常多,但是仪器软件参数方面的研究较少,所以软件参数是此次主要研究的重点,从不同软件参数的变化中找到的规律,从而进行有针对性的调整;前处理方法为索式提取,以正己烷、四氯甲烷为溶剂。气相色谱-质谱软件进样口温度为330℃、进样口脉冲压力:45 psi,柱流量:1.8 mL/min,电子倍增管相对电压400 V,程序升温程序:110℃保持2 min,40℃/min升溫至200℃,10℃/min升溫至260℃,20℃/min升溫至340℃保持2 min,为较优参数。通过优化气象色谱质谱软件的设置参数改善十溴二苯醚的回收率,优化前回收率82.6%,优化后92.2%。Since there are many factors affecting the recovery of decaBDE in a normal test,but there are few studies on the software parameters of the instrument,so the software parameters are the main focus in this study,and the laws can be found from the changes of different software parameters,so that targeted adjustments can be made.The pre-extraction was Soxhlet extraction,using hexane、tetrachloromethane as solvent.The injection temperature was 330℃,the injection pulse pressure was 45 psi,the column flow was 1.8 mL/min,the relative voltage of electron multiplier tube was 400 V,and PTV(Programed temperature vaporising)was as follows:110℃for 2 min,40℃/min ramp to 200℃,10℃/min ramp to 260℃,20℃/min ramp to 340℃for 2 min.The recovery of decaBDE was improved by optimizing the parameters of GC-MS software.The recovery was 82.6%before optimization and 92.2%after optimization.

关 键 词：索式提取 气相色谱—质谱法 多溴二苯醚 十溴二苯醚 电子电气产品 

分 类 号：O65[理学—分析化学]