快速声表面波气相色谱技术检测水中苯系物  

Determination of benzene series in water by using the fast SAW gas chromatograph

作　　者：陆艳艳[1] 孙林 朱宏伟[1] 任伟[1] 刘久玲[1] 何世堂[1] LU Yanyan;SUN Lin;ZHU Hongwei;REN Wei;LIU Jiuling;HE Shitang(Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院声学研究所,北京100190

出　　处：《应用声学》2020年第3期325-328,共4页Journal of Applied Acoustics

基　　金：中科院重点部署项目(ZDRW-XH-2019-4/1)。

摘　　要：建立了便携式声表面波气相色谱快速检测水中苯系物的方法。实验条件:检测器温度25℃,DB-5毛细管色谱柱:初始温度40℃,10℃/s程序升温至180℃。结果表明,氯苯、间二甲苯、苯乙烯、异丙苯保留时间分别为1.72 s、1.86 s、2.00 s、2.22 s,检出限分别为1.34μg/L、0.55μg/L、0.50μg/L、0.39μg/L,测得相对标准偏差值为4.08%~5.98%,回收率为82.7%~103.8%,且线性良好,线性相关系数为0.9946~0.9993。因此,该方法适用于水中苯系物的快速应急监测。A method of benzene series rapid detection has been developed using gas chromatography with surface acoustic wave detector(GC-SAW).Benzene series was tested by headspace under this condition.The SAW detector temperature was set at 25℃.The initial temperature of DB-5 capillary column was 40℃,and was temperature-programmed to 180℃ with the rate of 10℃/s.The results show that the retention times of chlorobenzene,m-xylene,styrene and cumene were 1.72 s,1.86 s,2.00 s,2.22 s respectively,the detection limits were 1.34μg/L,0.55 g/L,0.50μg/L,0.39μg/L respectively,and the relative standard deviations were in 4.08%–5.98%.The recoveries were 82.7%–103.8%,and the linearities were good,linear correlation coefficients were 0.9946–0.9993.Therefore,this method is suitable for benzene series rapidly emergency monitoring in water.

关 键 词：声表面波气相色谱 顶空进样 苯系物 快速检测 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]