Source Identification of pesticides using stable isotope

我研究了日本/中国对甲胺磷的鉴定，认为它是“有毒的日式饺子”。为了获得较高的精密度和准确度，对燃烧管内的多种试剂进行了测试。因此，选择了含镍、铂的氧化铜。此外，我在燃烧和IRMS之间安装了液氮低温聚焦系统，可以分析低浓度甲胺磷。最后，通过δ^<13>C，中国甲胺磷农药与日本购买的甲胺磷试剂非常接近。

I researched Japan/China identification of methamidophos as bothered "poisoned gyoza". For high precision and accuracy, the many reagents in combustion tube were tested. As the results, the copper oxide with nickel and platinum was selected. In addition, I installed cryofocusing system using liquid nitrogen between combustion and IRMS and can analyze low concentration of methamidophos. Finally, Chinese methamidophos pesticide is very closed to a methamidophos reagent bought in Japan by using δ^<13>C.