| 氨氮次溴酸钠氧化测定法的改良 |
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| 引用本文： | 张健,章文军,裘琼芬,张德民.氨氮次溴酸钠氧化测定法的改良[J].环境科学与技术,2011,34(11):126-129. |
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| 作者姓名： | 张健 章文军 裘琼芬 张德民 |
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| 作者单位： | 宁波大学生命科学与生物工程学院,浙江宁波,315211 |
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| 基金项目： | 国家“863”计划项目(2007AA10Z409); 教育部科学技术研究重点项目(208053); 宁波市科技创新项目(2007A31004) |
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| 摘 要： | 测定氨氮的次溴酸钠氧化法因其无需剧毒物质,测定结果准确而成为人们最常采用的方法之一.但因该方法测定范围较窄,配制溶液的水必须是无氨蒸馏水,测定环境也不能有氨污染而使其应用范围受到限制.文章介绍了一种新的氨氮测定方法,即改良次溴酸钠氧化法.通过将氧化剂(溴酸钾-溴化钾氧化剂贮备溶液)和显色剂(对氨基苯磺酰胺溶液、二盐酸-...
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| 关 键 词： | 氨氮 测定方法 次溴酸钠氧化法 |
Improving Sodium Hypobromite Oxidation Method for Ammonia Nitrogen Determination |
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| ZHANG Jian,ZHANG Wen-jun,QIU Qiong-fen,ZHANG De-min.Improving Sodium Hypobromite Oxidation Method for Ammonia Nitrogen Determination[J].Environmental Science and Technology,2011,34(11):126-129. |
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| Authors: | ZHANG Jian ZHANG Wen-jun QIU Qiong-fen ZHANG De-min |
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| Institution: | ZHANG Jian,ZHANG Wen-jun,QIU Qiong-fen,ZHANG De-min*(School of Life Science and Biotechnology,Ningbo University,Ningbo 315211,China) |
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| Abstract: | Sodium hypobromite oxidation method,due to its nontoxic and accuracy,is one of the most popular methods for ammonia nitrogen determination.Because of narrow-range limitation on detection,the strict ammonia-free requirement in water for reagent preparation and ambient air,its usage is limited.A new ammonia nitrogen determination method,namely improved sodium hypobromite oxidation method was introduced,which obviously increase upper limit from 0.5 mg/L to 2 mg/L by raising concentrations of oxidant(potassium ... |
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| Keywords: | ammonia nitrogen determination method sodium hypobromite oxidation method |
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