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海水中总氮和总磷的同时测定
被引：31
作者：
赵卫红
焦念志
赵增霞
机构：
[1] 中国科学院海洋研究所!青岛
来源：
关键词：
总氮;
总磷;
海水;
同时测定;
D O I：
暂无
中图分类号：
P734 [海洋化学];
学科分类号：
070702 ;
摘要：
The simultaneous determination of total nitrogen (TN) and total phosphorus (TP) in seawater by micro-autoana- lyzer after persulphate oxidation was made. The relative error is less than 3. 8 % when TN is higher than 17. 7μmol/L and less than 5. 8 % when TP is higher than 0. 38 μmol/L. The recovery percentage of TN and TP are 96 %-123 % and 94 %-113 %. During iced conservation after persulphate oxidation, the concentrations of TN and TP did not change with time.
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页码：64 / 66
页数：3
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