作　　者： ; ; ;

机构地区： 延边大学医学院长白山生物资源与功能分子教育部重点实验室

出　　处： 《延边大学学报（自然科学版）》 2011年第2期136-139,共4页

摘　　要： 以落叶松为研究对象,以10种有机氯农药（OCPs）为目标物,通过对气流式微注射器萃取技术（GP-MSE）和传统方法（索氏提取和硅藻土柱层析净化）进行比较,利用气相色谱质谱技术进行分离检测,评价了GP-MSE用于直接萃取松针样品中OCPs的准确性,并通过定量离子色谱图初步探讨了目标物的分离效果和基质影响.结果表明：GP-MSE方法分析松针中10种OCPs的加标回收率为70.27%-92.47%（4次平均值）,相对标准偏差为3.21%-22.67%（4次平均值）,与传统方法相比,有相当的回收率和重复性;定量离子色谱图分析表明,经GP-MSE萃取的松针加标样品中各OCPs的分离效果好,基质干扰少. The study,involving 10 organochlorine pesticides（OCPs） determined by GC-MS in larix gmelinii,evaluated the accuracy of gas purge microsyringe extracting directly of OCPs from pine needle by comparing gas purge microsyringe extraction with traditional method（Soxhlet extraction and Florisil column clean-up）,and discussed simply the separation and matrix effect of targets by the quantification ion chromatograms.The results showed recoveries of OCPs in pine needle samples with GP-MSE were 70.27%-92.47%（n=4）,and relative standard deviations（RSD） were 3.21%-22.67%（n=4）.The results were comparable to those obtained by traditional method.In addition,targets were separated efficiently,and matrix interferences were little according with the quantification ion chromatograms of OCPs in pine needle samples.

关 键 词： 微萃取 有机氯农药 松针 气流式

领　　域： [理学] [理学]