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《Chinese Journal of Analytical Chemistry》 1992-04
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Determination of Nitrate and Nitrite by Photochemical Kinetic Method

Men Ruizhi~*, Liu Shibin, Ma Xiaomci(Department of Chemistry ,Jilin University ,Changchun 130023)  
A photochemical kinetic method for the determination of nitrate and nitrite was developed.When the sample solution was irradiated with an ultra-violet lamp, the deeoloration rate of the methyl orange solution was directly proportional to the concentration of nitrate and nitrite.The content of nitrate and nitrite was determined,respectively. The experimental conditions were optimized. The interference behavior was observed. The method was simple,convenient and fast, and the precision and accuracy of the method were satisfactory.
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