水体中尤其是海水中硝酸盐氮的测定较繁琐，干扰物质多，分析时间长，重现性差，准确性不高。
The measurement of nitrate nitrogen and nitrite nitrogen in seawater has such disadvantages as many disturbing components, long time, poor repeatability and accuracy.
提出了紫外分光光度法同时测定生活饮用水中的硝酸盐氮和亚硝酸盐氮的含量。
This paper presented the simultaneously determine the nitrate nitrogen and the nitrous nitrogen in drinking water by UV.
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