| 释放的14C-绿黄隆结合残留物的衍生化及鉴定 |
| 摘要点击 2199 全文点击 1820 投稿时间：1999-09-02 |
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| 中文关键词 绿黄隆 结合残留物 衍生化 鉴定 |
| 英文关键词 C chlorosulfuron,bound residues,derivatization,identification. |
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| 中文摘要 |
| 利用湿热法可以将 14C-绿黄隆结合残留物从土壤中释放出来 .但该残留物的极性较强 ,在 GC- MS分析前 ,需进行衍生化处理 .本研究建立了该残留物的 DMSO(二甲基亚砜 ) - NaH-CH3I衍生化法 .正交试验的结果表明 ,在反应温度为 35℃ ,反应时间 5min,衍生化试剂加入量 0.15ml时 ,衍生化产率最高 ,其中温度对衍生化产率存在显著影响 .GC- MS分析表明 ,该方法是可行的 . |
| 英文摘要 |
| 14C chlorosulfuron bound residues can be released from soil by autoclaving method.Derivatization is necessary before subjected to GC MS analysis,due to the polarity of the relased residues.The DMSO NaH CH3I method is established to derivatize these residues.The results of orthogonal experiment showed that the highest yield could be obtained when the amounts of derivatization reagent,0 15ml was added and the reaction was performed at 35℃ for 5 minutes,and the temperature has a significant impact on the derivatization yield.GC MS analysis indicated that the method is feasible. |
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