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Simultaneous determination of nitrite and nitrate in various samples using flow-injection spectrophotometric detection

Authors: A Kazemzadeh, Ali A Ensafi
Publication date: 2001/6/30
Journal name: Microchemical journal
Volume: 69
Pages: 61-68
Publisher: Elsevier
 
The direct spectrophotometric method has been developed for the simultaneous
determination of nitrite and nitrate by flow-injection analysis. The method is based on the
catalytic effect of nitrite on the oxidation of pyrogallol red (PGR) by bromate in acidic media
and the decrease in absorbance of the system at 465 nm. The injected sample is split into
two streams. One of the streams is directly treated with the above reagents and then is
passed to the sample flow cell of the spectrophotometer. The decrease in absorbance at ...

 

Journal Papers
Month/Season: 
June
Year: 
2001

تحت نظارت وف ایرانی

Simultaneous determination of nitrite and nitrate in various samples using flow-injection spectrophotometric detection | Prof. Ali A. Ensafi

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تحت نظارت وف ایرانی