| 上海市饮用水中痕量土臭素和二甲基异冰片年变化规律及来源研究 |
| 摘要点击 2548 全文点击 1436 投稿时间：2007-04-24 修订日期：2007-07-31 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 异嗅物质 土臭素 二甲基异冰片 气相色谱-质谱 饮用水 |
| 英文关键词 odorants geosmin 2-methylisoborneol GC-MS drinking water |
|
| 中文摘要 |
| 采用液液微萃取-气相色谱/质谱联用测定饮用水中痕量异嗅物质——土臭素(geosmin,GSM)和二甲基异冰片(2-Methylisoborneol, 2-MIB或MIB).对上海市饮用水水源以及某水厂工艺出水进行调查发现，土霉味的来源主要为2-MIB，异嗅问题暴发季节为7～10月，7、8月份达到顶峰，原水中2-MIB的最高检出浓度可达152.82 ng/L，水厂出水中最高检出浓度为97.94 ng/L.初步的来源分析推断2-MIB为水中颤藻的代谢产物. |
| 英文摘要 |
| Liquid-liquid microextraction/GC/MS analysis method was employed in detecting trace odorants in drinking water. A-year-long investigation on odor chemicals was carried out in source water and drinking water in a certain waterworks of Shanghai. The results showed that 2-MIB was the main contaminant which induce disgusting odor to drinking water of Shanghai in July, August, September and October in a year with the peak concentration of 2-MIB 152.82 ng/L in raw water and 97.94 ng/L in finished water from waterworks. Oscillatoria was suspected as the resource of 2-MIB. |
