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Studies on flow injection chemiluminescence analysis of trace nitrite iodine edta nitrite photochemical reaction system



Studies on flow injection chemiluminescence analysis of trace nitrite iodine edta nitrite photochemical reaction system



Huanjing Kexue 12(6): 64-66, 88



A flow injection chemiluminescent method for the determination of trace nitrite was developed based on its inhibitory effect on the photochemical reaction between I2 and EDTA and the chemiluminescent reaction between I2 and luminol. Optimum analytical conditions were established. The linear range of nitrite determination is 1.0 .times. 10-7-4.0 .times. 10-6 mol/L and the detection to limit is 1.1 .times. 10-8 mol/L. The method was applied to the determination of nitrite in natural water and recoveries of the method were determined to be 93-103.5%.

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Accession: 007831937

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