气相色谱单点法检测消毒湿巾中的乙醇
楼美娟,蒋英华,羊洁芳,许菲菲
义乌海关,浙江义乌 322000
Determination of ethanol in disinfectant wipes by gas chromatography with single-point calibration method
楼美娟,蒋英华,羊洁芳,许菲菲
Yiwu Customs, Yiwu 322000, China
摘要:建立了气相色谱单点法快速检测消毒湿巾中的乙醇含量。取出消毒湿巾中的液体,以N,N-二甲基甲酰胺溶解定容,用Agilent DB-624型毛细管色谱柱分离,以FID检测器检测,使用单点法进行定量。乙醇体积分数为70%~80%的样品加标回收率为96.6%~102.3%,相对标准偏差为1.46%(n=6)。该方法适用于以体积分数为75%的医用酒精为主要成分的消毒湿巾中乙醇含量的测定,检测过程简单、快速。
Abstract:A method for determining ethanol content in disinfectant wipes by using gas chromatography was established. The extrusion solution was dissolved by N, N-dimethylformamide, then separated by Agilent DB-624 capillary column, and detected by FID, and the ethanol content was calculated by single-point calibration method. The recoveries of samples with the volume fraction of ethanol as 70%-80% were 96.6%-102.3%, the relative standard deviation of the detection results was 1.46% (n=6). The method is suitable for the determination of ethanol in disinfectant wipes with 75% medical alcohol as the main component, and it is simple and rapid with easy process and higher accuracy.
关键词:气相色谱法;单点法;消毒湿巾;乙醇
Keywords:gas chromatography; single-point calibration method; disinfectant wipes; ethanol
本文引用格式:
楼美娟,蒋英华,羊洁芳,等.气相色谱单点法检测消毒湿巾中的乙醇[J].化学分析计量,2021,30(8):59.Lou Meijuan,Jiang Yinghua,Yang Jiefang,et al. Determination of ethanol in disinfectant wipes by gas chromatography with single-point calibration method[J]. Chemical Analysis and Meterage,2021,30(8):59.
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