| NP气相色谱法对马拉硫磷在水稻上的残留研究 |
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| 引用本文： | 盛莉莎,杨仁斌,付 强,等.NP气相色谱法对马拉硫磷在水稻上的残留研究[J].中国农学通报,2009,25(4):241-245. |
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| 作者姓名： | 盛莉莎 杨仁斌 付 强 等 |
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| 作者单位： | 湖南农业大学农业环境保护研究所,长沙,410128 |
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| 摘 要： | 采用了气相色谱法测定马拉硫磷在水稻植株、土壤以及水样中的残留动态。样品用丙酮提取，二氯甲烷萃取，NP检测。结果表明：马拉硫磷在植株、土壤和水样中的添加回收率分别为96.12%～107.28%、78.5%～91.7%和80.3%～96.5%；变异系数分别为6.43%～8.71%、6.39%～9.15%和3.23%～6.76%。该方法对马拉硫磷的最小检测量为1.79×10-11g，植株、土样、水样中的马拉硫磷最低检出浓度分别为0.009、0.020、0.005 mg/kg。2006年马拉硫磷在湖南和浙江两地的稻田植株、土壤和水样中的半衰期分别为1.60d～3.77d；3.76d～3.97d；0.90d～1.02d。2007年马拉硫磷在湖南和浙江两地的稻田植株、土壤和水样中的半衰期分别是2.87d～3.04d；8.10～10.70d；0.46d～1.07d。在水样中的降解速率大于在植株和土壤中的降解速率。
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| 关 键 词： | 西门塔尔牛 西门塔尔牛 赖氨酸铜 发情周期 生殖激素 |
| 收稿时间： | 2008-11-13 |
| 修稿时间： | 2008-12-17 |
Research on Malathion Residue in Rice by NP Gas Chromatography |
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| Sheng Li-sha,Yang Ren-bin,Fu Qiang,Wang Hai-ping,Liu Ping.Research on Malathion Residue in Rice by NP Gas Chromatography[J].Chinese Agricultural Science Bulletin,2009,25(4):241-245. |
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| Authors: | Sheng Li-sha Yang Ren-bin Fu Qiang Wang Hai-ping Liu Ping |
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| Institution: | Sheng Lisha;Yang Renbin;Fu Qiang;Wang Haiping;Liu Ping(Institute of Agro-Environment Protection;Hunan Agricultural University;Changsha 410128) |
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| Abstract: | The residual dynamics of Malathion in rice plant, soil, water samples were determined by NP Gas Chromatography. Samples were extracted with acetone and dichloromethane, followed by determination using NP GC. The result showed that the recovery rate was from 96.12% to 107.28% for the rice plant, 78.5%～91.7% for the soil, and 80.3%～96.5% for the water samples with coefficients of variation of 6.43%～8.71%, 6.39%～9.15% and 3.23%～6.76%, respectively. The minimum detectable limits of the method were 1.79×10-11g. The minimum detectable concentration of Malathion was 0.009mg/kg for rice plant, 0.020mg/kg for soil samples and 0.005 mg/kg for water samples. The degradation half-life of Malathion within the rice plant, soil and water samples, two experiments conducted in Hunan and Zhejiang Province in 2006, was 1.60～3.77 days, 3.76～3.97 days and 0.90～1.02 days, respectively. Similarly, the degradation half-life of Malathion within the rice plant, soil and water samples, two experiments conducted in Hunan and Zhejiang Province in 2007, was 2.87～3.04 days, 8.10～10.70 days, 0.46～1.07 days, respectively. It was found that Malathion degrades faster in water samples than in rice plant and soil. |
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| Keywords: | Malathion rice plant water soil residue |
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