Citation: Shan Jun LIU, Han Xi SHEN, Xin Chao DING, Jian Xing DENG. GAS FLOW INJECTION DETERMINATION OF NITROGEN DIOXIDE USING GALVANIC COULOMETRIC DETECTOR[J]. Chinese Chemical Letters, ;1995, 6(11): 975-978. shu

GAS FLOW INJECTION DETERMINATION OF NITROGEN DIOXIDE USING GALVANIC COULOMETRIC DETECTOR

a Department of Chemistry, Nankai University, Tianjin 300071;
b Department of Environmental Science, Nankai University, Tianjin 300071

Received Date: 5 April 1995

The direct determination of NO₂ gas using a galvanic coulometric cell as detector by gas flow injection analysis (FIA) is described.The simple modification of the flow injection allows the linear range for the determination of NO₂ gas from 0.01-2 ppm(v/v) to be expanded to 8-500 ppm(v/v) with a relative standard deviation of 3-4%(n=12) at a rate of 25 samples per hour and avoids the problem of time consuming in the equilibrium performance.
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