| 引用本文： |
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袁星义,潘圣香,郭新华.示波极谱法测定水中硫化物[J].广西科学,2007,14(2):143-146. [点击复制]
- YUAN Xing-yi,PAN Sheng-xiang,GUO Xin-hua.Determination of Sulfide in Water by Oscillopolarography[J].Guangxi Sciences,2007,14(2):143-146. [点击复制]
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| 摘要: |
| 用示波极谱法测定水中硫化物,发现在酸性的Fe3+存在下,S2-与对-氨基苯二甲基盐酸盐(p-ADAD)反应生成的亚甲基蓝在单扫描示波极谱仪上产生灵敏极谱波,导数波高与S2-浓度在0~20μg/ml范围内呈良好的线性关系,检测限为0.013μg/ml。该方法已成功应用于多种废水中痕量S2-的测定,加标回收试验的回收率为98.7%~105.2%。该方法简便,灵敏,快速。 |
| 关键词: 硫化物 极谱法 水样 |
| DOI： |
| 投稿时间：2006-12-28修订日期：2007-02-08 |
| 基金项目: |
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| Determination of Sulfide in Water by Oscillopolarography |
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YUAN Xing-yi, PAN Sheng-xiang, GUO Xin-hua
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| (Guangxi Monitoring Center for Geological Enviroment, Guilin, Guangxi, 541004, China) |
| Abstract: |
| A new method for determination of sulfide by oscillopolarography was proposed.In acidity, under the existence of Fe3+, S2- with p-ADAD would produce Methylene blue. Then methylene blue produce a sensitive reductive wave on dropping mercury electrode at -0.32 V (vs.SCE).The wave height is linear with the concentration of S2- in the range of 0~20μg/ml.The detect limit is 0.013μg/ml.The method is sensitive, rapid and simple.Contents of S2- in several water samples were assayed by this method, the recoveries of the range 98.7%~105.2% were obtained. |
| Key words: sulfide polarography water samples |
