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| 固相净化气相色谱法测定水产品中多种有机磷农药残留 |
| Determination of Organophosphorous Pesticide Residues in Aquatic Products by Gas Chromatography |
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| DOI： |
| 中文关键词: 有机磷农药 固相净化 气相色谱法 水产品 |
| 英文关键词: Organophosphorous pesticides Solid phase purify Gas chromatography Aquatic products |
| 基金项目: |
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| 摘要点击次数: 1570 |
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| 中文摘要: |
| 建立了水产品中8种有机磷农药残留同时测定的方法，选择乙腈提取，ENVI-C18串联PSA固相萃取柱净化，经丙酮/正己烷混合溶液（体积比1∶1）洗脱，洗脱液氮吹浓缩后采用气相色谱外标法定量。8种有机磷农药在0.050 mg/L～1.00 mg/L范围内线性良好，检出限在1.8 μg/kg～2.5 μg/kg之间，3个添加水平加标样品平行测定的相对标准偏差为1.1%～5.7%，回收率为69.8%～116%。 |
| 英文摘要: |
| Established an analytical method for the determination of 8 organophosphorous pesticide residues in aquatic products by GC/FPD.The sample was extracted by acetonitrile,purified by ENVI-C18 and PSA soli-phase extraction,cartridges using acetone/n-hexane (1∶1, V∶V) as eluent.The eluent was blown to dryness under a stream of nitrogen,was then injected into the GC system to quantitative analysis.Calibration curves of high correlation were for 8 organophosphorous pesticide residues in a range between 0.050 mg/L and 1.00 mg/L,detection limits were in the range of 1.8 μg/kg～2.5 μg/kg,RSD of spiked replicate samples ranged from 1.1%～5.7% and the recovery rates were from 69.8%～116%. |
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