海洋科学2012，Vol.36Issue(5)：103-108,6.
海水中总溶解氮测定的高温燃烧法和湿化学氧化法的比较
Method comparison for measurement of dissolved organic nitrogen in seawater using high temperature combustion and persulfate oxidation
摘要
Abstract
Nitrogen is an important nutrition for halobios . As an important component of total dissolved nitro- gen（TDN）, dissolved organic nitrogen （DON） has been paid more and more attention. Now, essentially all routine methods measure total dissolved nitrogen （TDN） and calculate DON by subtracting the dissolved inorganic nitrogen （DIN）. In this study, two common methods for determination of DON： persulfate oxidation （PO） and high tempera- ture combustion （HTC） were compared. The results show that both methods have good agreements at blank, precision and accuracy. They also resulted in high recovery for various nitrogen-containing compounds （92%-107%） with a slope of 0.93 and 0.92, respectively, which indicates a high oxidation rate. The results of field samples showed the slope of section linear fit results is 0.92 and 0.97. So both methods had their own advantages, but HTC method is more efficient.关键词
总溶解氮/高温燃烧法/过硫酸钾氧化法/海水Key words
total dissolved nitrogen/high temperature combustion/persulfate oxidation/seawater分类
海洋科学引用本文复制引用
阎雪姣,王江涛..海水中总溶解氮测定的高温燃烧法和湿化学氧化法的比较[J].海洋科学,2012,36(5):103-108,6.基金项目
国家自然科学基金项目 （）
国家重点基础研究发展计划资助项目 （）
