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| Measurement of concentration of nitrate in water samples with different frozen time |
| ZHAO Jian-gang1,2, CHEN-Yuan1 |
| 1. Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China; 2. Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, 510632, China |
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Abstract The concentrations of nitrate in standard water samples and natural water samples with different frozen time were measured by continuous flow analyzer.Results showed that the nitrate concentration of standard water samples were basically correspondent with the original values during the experiment.For samples of natural water,with the frozen time of 2 days,the nitrate concentrations were higher than the original values;and they were lower than the original values with the longer frozen time in the next 2 days.
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Received: 25 February 2011
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| [1] 孔凡彬,邓磊.用无氨水、蒸馏水和去离子水测定总氮结果比较[J].环境研究与监测,2005,18(1):40-41.
[2] 肖伟,吴伟,李清雪.总氮测定影响因素的试验研究[J].工业用水与废水,2010,41(2):87-90.
[3] 蒋晶晶,张芙蕖.降低总氮空白吸光值的因素探讨[J].环境科学与管理,2008,33(2):121-122,147.
[4] 赵建刚,陈园.连续流动分析法测定不同冰冻时间水样总磷浓度的变化[J].分析仪器,2010,5:70-72.
[5] 国家环境保护总局《水和废水监测分析方法》编委会编.水和废水监测分析方法(第四版)[M].北京:中国环境科学出版社,2002:259-261. |
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