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| 固相微萃取-气相色谱法测定水中甲拌磷及其代谢产物残留 |
| Fast Determination of Phorate and Its Metabolite Residues in Natural Water by SPME GC |
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| DOI： |
| 中文关键词: 甲拌磷 代谢产物 固相微萃取 气相色谱法 水质 |
| 英文关键词: Phorate Metabolites SPME GC Water quality |
| 基金项目:新疆维吾尔自治区公益性科研院所基本科研业务基金资助项目(KY2015082) |
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| 中文摘要: |
| 采用固相微萃取技术富集水样中甲拌磷及其代谢产物残留，并用气相色谱法测定。通过优化试验条件，使该方法在0.05 mg/L～1.00 mg/L范围内线性良好，甲拌磷、甲拌磷亚砜和甲拌磷砜方法检出限分别为0.64 μg/L、36.1 μg/L、1.8 μg/L。用该方法测定无公害种植基地的灌溉水样品，3种农药残留均为未检出，水样的加标回收率为60.4%～85.7%，测定5次结果的RSD为3.4%～8.5%。 |
| 英文摘要: |
| The method of solid phase microextraction (SPME) was used to enrich phorate and its metabolites in water samples, and the contents of phorate and its metabolites were determined by gas chromatography. The linear range of the method was 0.05 mg/L to 1.00 mg/L. The detection limit of phorate, phorate sulfoxide and phorate sulfone was 0.64 μg/L, 36.1 μg/L and 1.8 μg/L, respectively. The method was used to determine water samples from a pollution free planting base, 3 target pesticides were undetected. The relative standard deviation(RSD) for each pesticide in water samples were between 3.4%～8.5%, with the recoveries between 60.4%～85.7%. |
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