顶空气相色谱法同时测定水中乙醛、丙烯醛、正丁醛和异丁醛  

Simultaneous determination of acetaldehyde,acrolein,N-butyraldehyde and isobutyraldehyde in water by headspace gas chromatography

作　　者：周晓芳 Zhou Xiaofang(Lianyungang Guannan Ecological Environment Monitoring Station,Lianyungang 222500,China)

机构地区：[1]连云港市灌南生态环境监测站,连云港222500

出　　处：《分析仪器》2022年第2期50-53,共4页Analytical Instrumentation

摘　　要：建立了顶空柱气相色谱法同时测定水中乙醛、丙烯醛、正丁醛和异丁醛残留量的方法。乙醛、丙烯醛、正丁醛和异丁醛残在0.04~15.0mg/L浓度范围内呈现良好的线性关系,方法检出限为0.003~0.006mg/L,3种浓度的加标回收率为85.7%~106.0%;相对标准偏差(RSD)为1.40%~2.57%。本方法前处理操作简便,测定结果灵敏度高,检出限低,具有较好的精密度和准确度,适用于环境中不同水质中乙醛、丙烯醛、正丁醛和异丁醛等残留的监测。The results showed that the residual of acetaldehyde,acrolein,N-butyraldehyde and isobutyraldehyde was in a good linear relationship in the concentration range of 0.04—15.0mg/l.The detection limit of the methods was 0.003—0.006mg/l,and the recovery rate of the three concentrations was 85.7%—106.0%;the relative standard deviation(RSD)ranged from 1.40%to 2.57%.The method is simple to operate,the sensitivity of the test results is high,the detection limit is low,and the precision and accuracy are good.It is suitable for the monitoring in different water.

关 键 词：顶空气相色谱法 水 乙醛 丙烯醛 正丁醛 异丁醛 

分 类 号：X832[环境科学与工程—环境工程] O657.71[理学—分析化学]