摘要
提出了气相色谱法快速测定环境水中叔丁醇含量的方法,外标法定量。考察了萃取剂、色谱柱、柱升温程序、载气流量等因素对叔丁醇测定的影响,得到最佳条件为:二氯甲烷作萃取剂,Rtx-Wax色谱柱为分离柱,以5℃·min-1的速率进行程序升温,载气流量为15 mL·min-1。叔丁醇的线性范围为10.0~800μg·L^(-1),方法的检出限(3S/N)为2.65μg·L^(-1),测定下限(10S/N)为10.6μg·L^(-1)。空白加标回收率在82.3%~93.5%内;当叔丁醇的质量浓度不小于50.0μg·L^(-1)时,测定值的相对标准偏差(RSD)均小于10%。
A method was established for the rapid determination of tert-butanol in environmental water by gas chromatography with external standard calibration curve method used for quantitative analysis.Four factors including extractant,chromatographic column,temperature programming,and flow rate of carrier gas were investigated,and the optimized conditions were as follows:dichloromcthane as extractant,Rtx-Wax chromatographic column for separation,the rate of 5℃·min-1 using in temperature programming,as well as the flow rate of carrier gas of 15 mL·min-1.Linearity range of tort-butanol was kept in the range of 10.0-800μg·L^(-1),with detection limit(3S/N) and lower limit of determination(10 S/N) of 2.65μg·L^(-1) and 10.6 μg·L^(-1).Values of recovery obtained by blank sample with adding standard were found in the range of 82.3%-93.5%,and RSDs of determined values were liss than 10% when the mass concentration of tcrt-butanol was not less than50.0 μg·L^(-1).
作者
胡宇锋
邓建军
王文倩
金敏瑛
唐佳伟
张春晖
彭悦
刘奥玲
HU Yufeng;DENG Jianjun;WANG Wenqian;JIN Minying;TANG Jiawei;ZHANG Chunhui;PENG Yue;LIU Aoling(China University of Mining&Technology(Beijing),Beijing 100083,China;Handan Iron and Steel Group Co.,Ltd.,Handan 056015,China;State Key Laboratory of Conservation and Utilization of Water Resources in Coal Mining,China Energy Investment Corporation,Beijing 102211,China)
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2021年第4期309-314,共6页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
国家重点基础研究发展计划项目(2018YFC0406400)
国家水体污染控制与治理科技重大专项(2017ZX07402001)
中央高校基本科研业务经费(2011QH01)。
关键词
叔丁醇
气相色谱法
二氯甲烷
环境水
tert-butanol
gas chromatography
dichloromethanc
environmental water
