| 环境试样中有机磷农残的预处理及检测 |
| 摘要点击 887 全文点击 1087 投稿时间：1996-05-28 |
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| 中文关键词 有机磷农残 多种检测器检测 甲醇水溶液 直接进水样技术 |
| 英文关键词 organophosphorus Pesticide residue methanol aqueous solution direct aqueous solution injection determination |
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| 中文摘要 |
| 环境试样中甲胺磷、乐果及甲基对硫磷等有机磷农殊用FPD,NPD及ECD检测可准确定性。用甲醇水溶液萃取固体试样及直接进水样技术既简化了预处理步骤,又有足够的精确度。甲醇/水溶液萃取土壤样品的加标回收率在93%-98%范围内。3种检测器对水样中乐果的检测限(mg/L)分别为0.05(FPD).0.001(NPD)及0.002(ECD). |
| 英文摘要 |
| Detection of methamidophos,dimethoate and Parathionmethyl pesticide residue by FPD,NPD and ECD can be accurately determined. Extraction of solid sample into methanol aqueous solution solvent and direct aqueous so lution injection not only simplify pretreatment steps but also with enough accuracy.Addition standard recovery rate of soil samples was in range of 93%-98%.The detection limits of dimethoate in water sample were 0.05 mg/L for FPD,0.001 mg/L for NPD and 0.002 mg/L for ECD,respectively. |
