| 现场分析海水中氨氮的靛酚蓝法 |
| |
| 引用本文： | 陈燕,邵秘华,林小燕,蒋岳文.现场分析海水中氨氮的靛酚蓝法[J].大连海事大学学报(自然科学版),2007,33(1):142-145. |
| |
| 作者姓名： | 陈燕 邵秘华 林小燕 蒋岳文 |
| |
| 作者单位： | 大连海事大学环境科学与工程学院 辽宁大连116026(陈燕，邵秘华，林小燕)，国家海洋环境监测中心 辽宁大连116023(蒋岳文) |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 采用正交实验对显色试剂配比进行优化,并探讨了水质分析理化条件,确定了现场分析氨氮的靛酚蓝法.其结果表明:复合试剂中柠檬酸钠含量为120 mg/ml,EDTA含量为30 mg/ml,硝普钠盐含量为1 mg/ml;苯酚试剂中苯酚含量为50 mg/ml,NaOH含量为21.2 mg/ml;DCI试剂中DCI含量为20 mg/ml,NaOH含量为14.8 mg/ml时可以缩短反应时间在10 min内,具有快速、操作简便等优点,测定结果的精密度和准确度,均能满足海上现场分析的要求.
|
| 关 键 词： | 水质分析 靛酚蓝法 正交实验 显色试剂配比 |
| 文章编号： | 1006-7736(2007)01-0142-04 |
| 修稿时间： | 2006-09-01 |
Study on the analysis in field of ammonia-nitrogen in seawater with indophenol blue |
| |
| CHEN Yan,SHAO Mi-hua,LIN Xiao-yan,JIANG Yue-wen.Study on the analysis in field of ammonia-nitrogen in seawater with indophenol blue[J].Journal of Dalian Maritime University,2007,33(1):142-145. |
| |
| Authors: | CHEN Yan SHAO Mi-hua LIN Xiao-yan JIANG Yue-wen |
| |
| Abstract: | In the paper,the experiments were designed to optimize agents according to the orthoplan design,and the physical and chemical conditions were discussed.To get better effects and shorten the reacting time,the content of the sodium citrate,EDTA,sodiumnitroprussiade in the recombiner,the phenol,NaOH in the phenol reagent and DCI,NaOH in the DCI reagent should be 120 mg/ml,30 mg/ml, 1.0 mg/ml,50 mg/ml,21.2 mg/ml and 20.0 mg/ml,14.8 mg/ml respectively.The new method is characteristic of the convenient operation,the testing results of ammonina-nitrogen after 10 mins can be satisfying and meet the demand of auto-analyzing technology for ammonia in seawater. |
| |
| Keywords: | seawater ammonia-nitrogen indophenol blue orthoplan design |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
