Ion chromatographic method for simultaneous determination of nitrate and nitrite in human saliva
Ion chromatographic method for simultaneous determination of nitrate and nitrite in human saliva
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DOI：
10.1016/s0378-4347(00)00264-4
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发表时间：
2000-07-21
期刊：
影响因子：
--
通讯作者：
Korenaga, T
中科院分区：
文献类型：
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作者：
Helaleh, MIH;Korenaga, T
建立了一种简便、快速、准确、灵敏的同时测定人唾液中亚硝酸盐和硝酸盐的方法。亚硝酸盐和硝酸盐存在于人唾液中测定后，10- 100倍稀释与离子色谱法（IC）使用抑制电导检测。亚硝酸盐和硝酸盐的回收率在95%和101%之间。该方法在浓度工作范围内呈线性（r（2）=0.9991）。亚硝酸盐和硝酸盐的检出限分别为15.0 μ g/l和33.5 μ g/l。检查了人唾液中存在的离子和其他几种怀疑影响亚硝酸盐和硝酸盐测定的离子。结果表明，大多数离子对测定无干扰。该方法可同时测定人唾液中的亚硝酸盐和硝酸盐。(C)2000 Elsevier Science B. V.保留所有权利。
A simple, rapid, accurate and sensitive method is proposed for the simultaneous determination of nitrite and nitrate in human saliva. Nitrite and nitrate present in the human saliva were determined after 10- to 100-fold dilution with ion chromatography (IC) using suppressed conductivity detection. Recoveries of nitrite and nitrate were found to be ranged between 95% and 101%. The method was linear (r(2)=0.9991) over the concentration working range. The detection limits were found to be 15.0 mu g/l and 33.5 mu g/l, for nitrite and nitrate, respectively. Ions that are present in human saliva and several other ions that are suspected to affect nitrite and nitrate determination were checked. It was found that most of the ions did not cause any interference in the determination. The method allows simultaneous determination of nitrite and nitrate in human saliva. (C) 2000 Elsevier Science B.V. All rights reserved.