| 直接显色光度法测定水中硫化物方法改进 |
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| 引用本文： | 安雅娟,辛天兵. 直接显色光度法测定水中硫化物方法改进[J]. 环境监测管理与技术, 2008, 20(3): 64-66 |
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| 作者姓名： | 安雅娟 辛天兵 |
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| 作者单位： | 保定市环境保护监测站,河北,保定,071000;河北大学,河北,保定,071000 |
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| 摘 要： | 用10mLφ（HEl）=0.5的溶液酸化水样，10mL锌氨络盐吸收液，于0．6L／min抽空气30min，溶液吸收硫化物后吸光值稳定，水和废水的测定加标回收率为94.4％～101％，精密度为2．87％～3.27％。改进后的直接显色分光光度法测定水中硫化物，酸化-抽气分离装置简单、操作方便。
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| 关 键 词： | 硫化物 直接显色光度法 方法改进 |
Determ ination of Sulfidein Water by Improved M ethylene Blue Spectrophotometry |
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| AN Ya-juan,XIN Tian-bing. Determ ination of Sulfidein Water by Improved M ethylene Blue Spectrophotometry[J]. The Administration and Technique of Environmental Monitoring, 2008, 20(3): 64-66 |
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| Authors: | AN Ya-juan XIN Tian-bing |
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| Affiliation: | AN Ya-juan,XIN Tian-bing ( 1. Baoding Environmental Protection station, Baoding, Hebei 071000, China; 2. Hebei University ,Baoding , Hebei 071000, China) |
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| Abstract: | The sulfide was determined by improved method of direct spectrophotometry with simple acidification-exhaust separation devices. The method was easily operated by 10 mL φ（HCl） =0.5 acidified sample solution, 0.6 L/min for 30 min air sweeping and absorption was stability. The recoveries of water and wastewater were from 94.4% to 101% , the precisions from 2.87% to 3.27%. |
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| Keywords: | Sulfide Directcolormethod Methodimprovement |
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