摘要
目的建立工作场所空气中乙二醇丙醚的溶剂解吸-气相色谱测定方法。方法工作场所空气中乙二醇丙醚以活性炭管采集,经甲醇︰二氯甲烷(5∶95,V/V)溶液解吸,毛细管色谱柱分离,火焰离子化检测器测定。结果乙二醇丙醚在质量浓度为1.37~1 913.80 mg/L时线性关系良好,相关系数为0.999 90;方法检出限为0.06 mg/L,最低检出浓度为0.02 mg/m3;平均解吸效率为97.81%~104.70%;批内相对标准偏差(RSD)为1.94%~2.99%,批间RSD为3.24%~4.53%。样品在室温下至少可保存14 d。结论本方法可用于工作场所空气中乙二醇丙醚的测定。
Objective To develop a solvent desorption-gas chromatography method for detecting ethylene glycol monopropyl ether （EGME） in workplace air. Methods EGME in workplace air was captured by charcoal tubes and desorbed by methanol-methylene chloride （5： 95, V/V） , separated by capillary chromatographic column, and detected by flame ionization detector. Results The good linear range of EGME was 1.37-1 913.80 mg/L, and the correlation coefficient was 0. 999 90. The detection limit was 0. 06 mg/L. The minimum detectable concentration was 0. 02 mg/ma. The average desorption efficiency was 97.81%-104. 70%. The within-run relative standard deviation （RSD） was 1.94%- 2. 99% , and the between-run RSD was 3.24% -4. 53%. The samples could be stored at room temperature for at least 14 days. Conclusion This method could be used for detection of EGME in workplace air.
作者
凌伟洁
戎伟丰
胡嘉雯
蒙瑞波
何嘉恒
丘静静
LING Weijie , RONG Weifeng, HU Jiawen, MENG Ruibo, HE Jiaheng, QIU Jingjing(Guangzhou Prevention and Treatment Center for Occupational Diseases, Guangzhou, Guangdong 510620, Chin)
出处
《中国职业医学》
CAS
北大核心
2018年第1期91-94,共4页
China Occupational Medicine
基金
广州市医药卫生科技项目(20171A010284)
广州市职业环境与健康效应重点实验室建设专项(2014SY000020)
广州市“121人才梯队工程”后备人才项目
广东省“十二五”医学重点专科项目(粤卫函[2012]20号)
广州市医学重点学科建设项目(穗卫科[2013]21号)
广州市民生科技重大项目(2014Y2-00067)
广东省职业病防治重点实验室开放运行(2017年摩考核合格)(20178030314152)
关键词
工作场所
空气
乙二醇丙醚
活性炭管
溶剂解吸
气相色谱法
Workplace
Air
Ethylene glycol monopropyl ether
Charcoal tube
Solvent desorption
Gas chromatography
