期刊论文

The Detection of Kresoxim-methyl and Thiafuramide Residues in Wheat by Gas Chromatography

中文

农药

1006-0413

2019

58

4

285-287

10.16820/j.cnki.1006-0413.2019.04.014

本校为第一机构

[目的]使用气相色谱检测小麦中醚菌酯和噻呋酰胺的残留,建立相应的分析方法。[方法】小麦籽粒及小麦秆经过乙腈提取,过层柱净化,用0.22 µm滤膜过滤,待GC-ECD检测。[结果】在0.01、0.05、0.5mg/kg 3个添加水平下,醚菌酯在小麦籽中的添加回收率为82.5%~114.6%,相对标准偏差(RSD)为3.88%~4.65%;在小麦秆中的添加回收率为82.4%~108.8%,相对标准偏差(RSD)为5.11%~5.34% ;噻呋酰胺在小麦籽中的添加回收率为88.1%~117.7%,相对标准偏差(RSD)为3.93%~8.88% ;在小麦秆中的添加回收率为90.3%~116.4% ;相对标准偏差(RSD)为6.11%~ 8.10%.[结论]由数据可得醚菌酯和噻呋酰胺在0.01~5.0mg/L范围内都呈现出良好的...

[Aims] A gas chromatography-electron capture detection method for determination of kresoxim-methyl and thifluzamide residues in wheat was established.[Methods ] The wheat grain and straw were extracted with acetonitrile, purified, filtrated with 0.22 μm membrane and detected by chromatography.[Results ] At 0.01, 0.05, 0.5 mg/kg levels, the recovery of kresoxim-methyl was 82.4 -114.6%, relative standard deviation (RSD) was 3.88-5.34%, the recovery of thifluzamide was 81.5-117.7%, relative standard deviation (RSD) was 3.93-8.10%.[Conclusions ] K...