| 孔雀绿-磷钼杂多酸分光光度法检测水中痕量磷 |
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| 引用本文： | 李星,聂学峰,杨艳玲,冯群英,何宇飞,李圭白.孔雀绿-磷钼杂多酸分光光度法检测水中痕量磷[J].哈尔滨商业大学学报(自然科学版),2005,21(5):558-562. |
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| 作者姓名： | 李星 聂学峰 杨艳玲 冯群英 何宇飞 李圭白 |
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| 作者单位： | 1. 北京工业大学,建筑工程学院,北京,100022
2. 哈尔滨工业大学,市政环境工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金资助项目(50378004)
国家高技术发展计划资助项目(863-2004AA601020)． |
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| 摘 要： | 为建立一种更准确的检测饮用水中痕量磷的方法,从标准曲线样液点质量浓度、显色剂的配制、孔雀绿的溶解过程、表面活性剂的用量以及最大吸光度的波长等方面对孔雀绿-磷钼杂多酸分光光度法进行了改进,结果表明,采用改进后的孔雀绿-磷钼杂多酸分光光度法,具有灵敏度高、精密度好、络合物稳定时间长,尤其在磷质量浓度为1～10g/L范围内与原方法相比优势更明显,适合饮用水中痕量磷的检测.
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| 关 键 词： | 痕量磷 检测 孔雀绿-磷钼杂多酸分光光度法 饮用水 |
| 文章编号： | 1672-0946(2005)05-0558-05 |
| 修稿时间： | 2005年6月30日 |
Determination of trace amounts of phosphorus in drinking water by PMA-Malachite green spectrophotometry |
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| LI Xing,NIE Xue-feng,YANG Yan-ling,FENG Qun-ying,HE Yu-fei,LI Gui-bai.Determination of trace amounts of phosphorus in drinking water by PMA-Malachite green spectrophotometry[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2005,21(5):558-562. |
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| Authors: | LI Xing NIE Xue-feng YANG Yan-ling FENG Qun-ying HE Yu-fei LI Gui-bai |
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| Abstract: | It is showed in this paper that some aspects of PMA-Malachite green spectrophotometry are improved to establish a more accurate measurement of trace phosphorus in drinking water, such as adjustment of the concentration of samples' typical curve, preparation of the developer compounds, dissolution process of malachite green, dosage of surfactant, and the wavelength of maximal absorbance of associated system. The results indicate that the improved measurement of PMA-Malachite green spectrophotometry displays high sensitivity and precision, and the complex indicates with long stable time. Especially, the advantage of improved measurement is evident in concentration range from 1 to 10 g/L, which is equal to measure the trace phosphorus in drinking water. |
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| Keywords: | trace phosphorus measurement PMA-Malachite green spectrophotometry drinking water |
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