Gas-Liquid Chromatographic Determination of Trichlorfon (Dipterex) in Livestock Products using a Flame Photometric Detector
Gas-Liquid Chromatographic Determination of Trichlorfon (Dipterex) in Livestock Products using a Flame Photometric Detector
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使用火焰光度检测器气液色谱测定畜产品中的敌百虫（敌百虫）
DOI：
10.3358/shokueishi.22.472
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
T. Ishida
中科院分区：
文献类型：
--
作者：
M. Imanaka;K. Matsunaga;T. Ishida
使用FPD的气液色谱程序，其中使用敌百虫本文以敌百虫（DEP）为指示峰，采用塞莫恩3000柱（Shimalite TPA，柱长小于0.5m），在固定相色谱仪上进行气相色谱分析，测定了畜产品中的DEP。DEP产生非常对称的峰，其保留时间与亚磷酸二甲酯（DMP）和敌敌畏（DDVP）等已知降解产物的保留时间不同。当进样量为0.5 ~ 4000 ng时，峰形基本不变。样品溶液中共存物质未降低峰高。此外，通过气相色谱-质谱法确认该峰是DEP本身的峰。在0.4ppm水平下，DEP在各种畜产品中的回收率为90.4%（鸡蛋）~ 102%（牛奶）。方法的检出限为2 ppb（全基）。
A gas-liquid chromatographic procedure using FPD, which makes use of Trichlorfon (Dipterex, DEP) itself as the indicator peak on the FPD gaschromatogram, has been developed for the determination of DEP in livestock products.A column of Thermon 3000 on Shimalite TPA with a length shorter than 0.5m was used; DEP gave a very symmetrical peak with a retention time different from those of well-known degradation products such as dimethylphosphite (DMP) and dichlorvos (DDVP). The shape of this peak did not change even when the injection quantity ranged from 0.5 to 4000ng. The peak height were not lowered by co-existing substances in the sample solution. Furthermore, the peak was confirmed to be that of DEP itself by gas chromatography-mass spectrometry. These results enabled us to use the peak as an index for residue analysis.The recoveries of DEP added to various kinds of livestock products at the level of 0.4ppm ranged from 90.4% (chicken egg) to 102% (cow milk). The detection limit was 2ppb (whole basis).