GCMS结合顶空Trap模式测定废液中酯类化合物  

Determination of ester compounds in waste liquid by GCMS combined with headspace Trap mode

作　　者：杜世娟 田菲菲 李月琪 邓晓丽 范军 黄涛宏 DU Shijuan;TIAN Feifei;LI Yueqi;DENG Xiaoli;FAN Jun;HUANG Taohong(Shimadzu(China)Co.,LTD,Beijing,100020,China)

机构地区：[1]岛津企业管理(中国)有限公司,北京100020

出　　处：《环境化学》2023年第8期2853-2855,共3页Environmental Chemistry

摘　　要：本文使用气相色谱质谱联用仪结合顶空Trap模式建立了废液中6种酯类化合物的测定方法.样品置于密封顶空瓶中,80℃平衡25 min后,Trap模式进行富集,经GCMS进行分析,以SIM方式进行采集,外标法定量.6种酯类化合物在10-200μg·L^(−1)的浓度范围内相关系数R在0.999以上.10μg·L^(−1)标准溶液放入6个20 mL顶空瓶中连续进样,峰面积RSD%为1.6%-3.9%.该方法简单易操作,富集效率高,是废液中酯类化合物的有效分析方法.In this paper,a method for determination of 6 ester compounds in waste liquid was established by using Gas chromatography-Mass spectrometry combined with headspace Trap mode.The sample was placed in a sealed headspace bottle,which was equilibrated at 80℃for 25 minutes.Then it was enriched in Trap mode,analyzed by GCMS with SIM mode and quantified by external standard method.The linearity of 6 ester compounds was good in the concentration range of 10-200μg·L^(−1).The correlation coefficients were greater than 0.999.The peak area RSD%of 10μg·L^(−1) ester compounds was 1.6%-3.9%.The method is simple and easy to operate,with high enrichment efficiency.It is an effective method for analyzing ester compounds in waste liquid.

关 键 词：气相色谱质谱联用仪 TRAP 模式 酯类化合物 

分 类 号：O657.63[理学—分析化学] X832[理学—化学]