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| UPLC-线性离子阱串联质谱法测定水中新烟碱类杀虫剂 |
| Determination of Neonicotinoid Insecticides in Water by High Performance Liquid Chromatography-Quadrupole Linear Ion Trap Tandem Mass Spectrometry |
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| DOI： |
| 中文关键词: 新烟碱类杀虫剂 超高效液相色谱 线性离子阱串联质谱法 水质 |
| 英文关键词: Neonicotinoid insecticide Ultra performance liquid chromatography Linear ion trap tandem mass spectrometry Water quality |
| 基金项目:国家自然科学青年科学基金资助项目（41601509）；水利部太湖流域管理局水资源监测预算基金资助项目（12620700900218002） |
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| 中文摘要: |
| 水样经离心后，采用直接进样超高效液相色谱线性离子阱串联质谱法快速测定水中9种新烟碱类杀虫剂。试验表明，该方法在20.0 ng/L～200 ng/L范围内线性良好，方法检出限为2.9 ng/L～8.4 ng/L，实际水样的加标回收率为81.2%～109%，测定6次结果的RSD为4.1%～13.9%，基质效应不明显。将该方法用于测定太湖22条主要入湖河道，结果呋虫胺、噻虫胺、吡虫啉、氯噻啉、噻虫嗪等5种新烟碱类杀虫剂均有不同程度检出。 |
| 英文摘要: |
| After centrifugation, 9 kinds of neonicotinoid insecticides in water were rapidly determined by direct injection-high performance liquid chromatography-linear ion trap tandem mass spectrometry. The experimental results showed that the method had good linearity at 20.0 ng/L to 200 ng/L of the target compounds. The detection limits were between 2.9 ng/L and 8.4 ng/L. The recoveries of actual water samples were from 81.2% to 109%, and the RSDs were from 4.1% to 13.9%（n=6）. The matrix effect was not obvious. Applying this method in determining 22 main rivers in Taihu Lake, 5 kinds of neonicotinoid insecticides such as dinotefuran, clothianidin, imidacloprid, chlorothianidin and thiamethoxam were detected to some extent. |
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