顶空-气相色谱法同时测定水中正丁醇、异丁醇、正丁醛和异丁醛  

Simultaneous Determination of n-Butanol,iso-Butanol,n-Butanal and iso-Butanal in Water by GC with Headspace

作　　者：张保良 李红莉[2] 张凤菊[2] 贾坤[2] ZHANG Baoliang;LI Hongli;ZHANG Fengju;JIA Kun(Shandong Electric Power Engineering Consulting Institute Corp.,Ltd.,Jinan 250013,China;Shandong Province Environment Monitoring Centre,Jinan 250101,China)

机构地区：[1]山东电力工程咨询院有限公司,济南250013 [2]山东省环境监测中心站,济南250101

出　　处：《理化检验（化学分册）》2018年第8期946-950,共5页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：采用顶空-气相色谱法同时测定水中正丁醇、异丁醇、正丁醛和异丁醛的含量。顶空平衡温度为60℃,顶空加热平衡时间为30min。用HP-INNOWAX色谱柱(30.0m×0.53mm,1.0μm)分离,氢火焰离子化检测器检测。4种化合物的质量浓度在一定范围内与其对应的峰面积呈线性关系,方法的检出限为6.96~11.17μg·L^(-1)。以空白样品为基体进行加标回收试验,所得回收率为80.0%~116%,测定值的相对标准偏差(n=6)为3.2%~9.1%。GC with headspace was applied to the simultaneous determination of n-butanol, iso-butanol, n butanal and iso-butanal in water. The equilibrium temperature and heating equilibrium time of head space were set at 60 ℃ and 30 rain. The analytes were separated on HP-INNOWAX chromatographic column （30.0m×0. 53 mm, 1. 0μm） and detected by FID. Linear relationships between values of peak area and mass concentration of the 4 compounds were kept in definite ranges. Detection limits of the method ranged from 6. 96 μg·L^-1 to 11. 17 μg·L^-1. On the base of blank sample, test for recovery was made by standard addition method. Values of recovery found were in the range of 80. 0%-116%, with RSD＇s （n= 6） in the range of 3. 2 - 9. ] %.

关 键 词：气相色谱法 顶空 正丁醇 异丁醇 正丁醛 异丁醛 水 

分 类 号：O657.7[理学—分析化学]