| 酚二磺酸分光光度法测定水中硝酸盐氮的条件控制 |
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| 引用本文： | 张航,张宁娟.酚二磺酸分光光度法测定水中硝酸盐氮的条件控制[J].价值工程,2012,31(30):296-298. |
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| 作者姓名： | 张航 张宁娟 |
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| 作者单位： | 1. 宝鸡市环境保护监测站,宝鸡,721006
2. 宝鸡市陈仓区环境保护监测站,宝鸡,721300 |
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| 摘 要： | 对酚二磺酸分光光度法测定水中硝酸盐氮进行了验证性的探讨,结果表明该方法具有测量范围较宽,显色稳定的优点,但此方法操作繁琐,尤其是对水样的前处理控制不好将对硝酸盐氮含量的测定影响较大。其线性区间在0.02-2.0mg/L范围内,相关系数等于0.9999,硝酸盐氮浓度小于0.02mg/L或大于2.0mg/L时,测量结果将产生一定的误差。
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| 关 键 词： | 硝酸盐氮 酚二磺酸法 实验条件控制 |
Determination of Condition Control of Nitrate Nitrogen in Water with Phenol Disulfonic Acid Spectrophotometry |
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| ZHANG Hang
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ZHANG Ning-juan.Determination of Condition Control of Nitrate Nitrogen in Water with Phenol Disulfonic Acid Spectrophotometry[J].Value Engineering,2012,31(30):296-298. |
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| Authors: | ZHANG Hang ZHANG Ning-juan |
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| Institution: | ZHANG Hang;ZHANG Ning-juan(①Baoji Environmental Protection Monitoring Station,Baoji 721006,China ②Chencang District Environmental Protection Monitoring Station in Baoji City,Baoji 721300,China) |
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| Abstract: | This paper verified the method to determine the nitrate nitrogen in water by phenol disulfonic acid spectrophotometry.The results showed that the method had a wide measurement range,and its colour was stable,but its operation is complicated,especially the pre-treatment of the water.If pre-treatment of the water can not be controlled,it will cause greater impact.Its linear range is among 0.022.0mg/L,and the correlation coefficient is equal to 0.9999.When the nitrate nitrogen concentration is less than 0.02mg/L or greater than 2.0mg/L,the measurement results will have a certain margin of error. |
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| Keywords: | nitrate nitrogen phenol disulfonic acid method experimental conditions control |
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