短程选择离子扫描气相色谱-质谱法检测水中15种半挥发性有机物  

Gas Chromatography-Mass Spectrometric Determination of Semi-volatile Organic Compounds in Water Samples with Segment Selected Ion Monitoring Mode

作　　者：张永涛[1] 张莉[1] 张琳[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所,河北正定050803

出　　处：《岩矿测试》2008年第6期401-404,共4页Rock and Mineral Analysis

基　　金：国家自然科学基金项目资助(40672169)

摘　　要：通过优化色谱分离条件，改进质谱扫描方式，建立了气相色谱-质谱快速测定水中15种半挥发性有机物的方法。采用多梯度升温，缩短了色谱运行时间，可在17min内完成检测；采用短程选择离子扫描方式，提高了方法的灵敏度，获得了较低的检出限和较高的回收率。方法检出限均低于1．0ng／L，回收率为78．0％～103．0％。A gas chromatography-mass spectrometric method which can quickly detect 15 volatile organic compounds in water samples is established through the optimization of chormatograhic conditions and the improvement on selected ion monitoring mode. The method uses the temperature programming （gas） chromatography which remarkeably shortens the running time of chromatography （within 17 minutes）. It also uses the segment selected ion monitoring mode which increases sensitivity and gets lower detection limits. The detection limits of the method for 15 volatile organic compounds are less than 1.0 ng/L and the higher recovery of 78% -103% is obtained.

关 键 词：有机氯农药 苯并(A)芘 梯度升温 短程选择离子扫描 气相色谱-质谱法 

分 类 号：O657.63[理学—分析化学] S482.32[理学—化学]