Fast Spectrophotometric Method for Determination of Nitrate and Nitrite Using Diphenylamine-4-sulfonic Acid

被引：0
作者：
Mroczkowski, W. [1 ]
Stuczynski, T. [1 ]
机构：
[1] State Res Inst, Inst Soil Sci & Plant Cultivat, PL-24100 Pulawy, Poland
来源：
CHEMIA ANALITYCZNA | 2009年 / 54卷 / 04期
关键词：
Nitrate; Nitrite; Diphenylamine-4-sulfonic acid; Reduction; REDUCTION; WATER;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new method for determination of nitrates was developed It was based oil reduction Of nitrates to nitrites using 0 1% diphenylamine-4-sulfonic acid solution in 95% (m/m) H2SO4 Nitrites obtained in this reaction were diazolized using sulfanilic acid and then coupled to N-(1-naphtyl)-ethylenediamine to form a coloured azo complex, which was determined spectrophotometrically at the wavelength of 550 nm Calibration plot was lineal in nitrate concentration range 1-20 mu g mL(-1) N with R-2 = 0.99
引用
收藏
页码：753 / 759
页数：7
相关论文
共 21 条
123