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| HPLC-MS/MS法测定秦岭土壤中当前使用农药残留 |
| Determination of Currently Used Pesticide Residues in the Soil of Qinling Mountains by High Performance Liquid Chromatography Tandem Mass Spectrometry |
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| DOI： |
| 中文关键词: 当前使用农药 QuEChERS 高效液相色谱串联质谱法 土壤 |
| 英文关键词: Currently used pesticides（CUPs） QuEChERS High performance liquid chromatography tandem mass spectrometry Soils |
| 基金项目:国家自然科学基金资助项目（21976045）；陕西科技大学学术骨干科研启动基金资助项目（22076112） |
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| 摘要点击次数: 17 |
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| 中文摘要: |
| 采用QuEChERS-HPLC-MS/MS法测定秦岭土壤中11种当前使用农药（CUPs），包括有机磷类农药、氨基甲酸酯类农药及新烟碱类农药。通过优化试验条件，使方法在0500μg/L～500μg/L范围内线性良好，方法检出限为0027 ng/g～0133 ng/g。空白基质低、中、高3个质量比水平的加标回收率为554%～117%，3次测定结果的RSD为13%～77%。将该方法用于测定秦岭（西安段）土壤，各采样点检出的8种CUPs质量比范围为0161 ng/g～194 ng/g，主要为有机磷类农药，推测其来源可能是附近农田中施用的CUPs挥发进入空气，再经大气传输进入秦岭土壤。 |
| 英文摘要: |
| An analysis method was established by QuEChERS HPLC MS/MS for determining 11 currently used pesticides（CUPs） in the soil of Qinling Mountains， including organophosphorus pesticides， carbamate pesticides and neonicotinoid pesticides. By optimizing the experimental conditions， 〖JP3〗the method had good linearity in the range of 0500 μg/L~500 μg/L， and the method detection limits were from 0027 ng/g to 0133 ng/g. The recoveries of blank samples spiked to low， medium and high concentration levels were between 554% and 117%， and the RSDs of three measurements ranged from 13% to 77%. 〖JP2〗Applying this method to determining the soil samples from Qinling Mountains（Xian section）， the concentration of 8 CUPs detected in each sampling site ranged from 0161 ng/g to 194 ng/g， mainly organophosphorus pesticides， which might originate from the volatilization of CUPs applied in nearby farmland and enter the soil of Qinling Mountains through atmospheric transport. |
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