| 摘要: |
| 用毒性较小的溶剂正己烷取代有致癌性和强毒性的苯,通过毛细管柱气相色谱法优化水中苦味酸检测的方法。结果显示,用正己烷取代苯是可行的,检出限为0.44μg/L,标准偏差为0.146%(n=7),回收率为90.7%~116.8%。该方法符合国标GB 3838-2002的要求,与推荐方法相比具有操作环保、安全的优点,适用于测定分析废水和生活饮用水中苦味酸的含量。 |
| 关键词: 苦味酸 正己烷 气相色谱法 饮用水 |
| DOI： |
| 投稿时间：2011-03-29 |
| 基金项目: |
|
| Study on the Optimal Method for Determination of Picric Acid in Water |
|
WEI Jin-jin
|
| (Nanning Environmental Protection Monitoring Station, Nanning, Guangxi, 530012, China) |
| Abstract: |
| The method for determination of picric acid in water was optimized.Picric acid was extracted by low toxicity hexane replacing benzene which was highly toxic and carcinogenic to humans,determinated by gas chromatograpy.The results showed that the method's detection limit was 0.44μg/L,standard deviation was 0.146%(n=7) and recovery rate was 90.7% to 116.8%.It was experimentally proved that this method met the requirment of GB 3838-2002 and was environmentally friendly compared with recommendatory method. |
| Key words: picric acid hexane gas chromatograpy drinking water |
