蔬菜中有机磷农药气相色谱定量及指纹图谱定性方法  

Quantitative and qualitative analysis of phosphate pesticides by flame photometric detector in vegetable with fingerprint

作　　者：朱芸[1] 赵清荣[1] 雒婉霞[1] 徐小明[2] 杨勤德[1] 

机构地区：[1]新疆维吾尔自治区疾病预防控制中心,乌鲁木齐830011 [2]浙江省疾病预防控制中心,杭州310000

出　　处：《中国卫生检验杂志》2010年第12期3185-3186,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立常见蔬菜的气相色谱火焰光度检测器(GC-FPD)定量检测和FPD指纹图谱定性检测的方法。方法:样品经乙腈提取、石墨炭黑柱固相萃取净化,GC-FPD测定,FPD指纹图和内标物辅助定性,用外标进行定量。结果:检出限为0.005 mg/kg～0.01 mg/kg(S/N=3),加标回收率为67.1%～135%,相关系数为0.9945～0.9998。结论:部分蔬菜有其固定且特有的FPD指纹图,通过与样品和标样的对照用于定性确证;用外标定量,大多数有机磷农药外标定量的回收率较好。Objective：Gas chromatography with flame photometric detector（GC-FPD） was reported in this paper to the quantitative determination of phosphate pesticide and qualitative analysis with FPD fingerprint in vegetable.Methods： Samples were extract with acetonitrile and purified through Envi Carb column.Specific FPD fingerprint of one kind of vegetable could be used for qualitative analysis through comparison with standar control.Results： The detection limits were between 0.005 mg/kg ～0.01 mg/kg（S/N=3）.Overall recoveries were between 67.1%～135%.The correlation coefficients for the linear equations were 0.9945～0.9998.Conclusion： The quantitation of phosphate pesticide could be determined by external standard and its recovery rates in some vegetables were very good.

关 键 词：蔬菜 GC-FPD 指纹图 

分 类 号：R155.54[医药卫生—营养与食品卫生学]