| 污水中微量氨氮的光度测定方法 |
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| 引用本文： | 李时平,贾文泽.污水中微量氨氮的光度测定方法[J].中国石油大学学报(自然科学版),2003,27(5). |
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| 作者姓名： | 李时平 贾文泽 |
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| 作者单位： | 1. 石油大学化学化工学院,山东东营,257061
2. 东营市环境保护科学研究所,山东东营,257091 |
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| 摘 要： | 用苯酚作为显色剂、次氯酸钠作为氧化剂 ,亚硝基铁氰化钠作为催化剂 ,使NH3 定量生成靛酚 ,用以测定污水中的微量氨。最大吸收波长λmax=6 2 5nm ,最大摩尔吸光系数εmax=180 6L·mol/cm。水样经过碱性预蒸馏 ,馏出液中加入二乙胺四乙酸 (EDTA )后 ,用酚钠使溶液呈碱性 ,在催化剂作用下 ,用次氯酸钠氧化显色 30min后 ,可直接测定浓度为 0 .0 8～ 2 0mg/L的氨 (以氮计 )样品。测定结果与钠氏试剂光度法基本吻合 ,该方法可消除石油类等 19种物质的干扰。
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| 关 键 词： | 氨 氮 测定 光度法 次氯酸钠 石化厂 污水 |
Measurement of ammonia and nitrogen contents in wastewater produced from petrochemical plant with light intensity method |
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| LI Shi-ping and JIA Wen-ze. College of Chemistry and Chemical Engineering in the University of Petroleum,China,Dongying.Measurement of ammonia and nitrogen contents in wastewater produced from petrochemical plant with light intensity method[J].Journal of China University of Petroleum,2003,27(5). |
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| Authors: | LI Shi-ping and JIA Wen-ze College of Chemistry and Chemical Engineering in the University of Petroleum China Dongying |
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| Institution: | LI Shi-ping and JIA Wen-ze. College of Chemistry and Chemical Engineering in the University of Petroleum,China,Dongying 257061 |
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| Abstract: | |
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| Keywords: | ammonia nitrogen measurement light intensity method sodium hypochlorite petrochemical plant wastewater |
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