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Type: Artigo de periódico
Title: Flow Injection Analysis Of Nitrogen Dioxide Using A Galvanic Detector
Author: Liu S.-J.
Shen H.-X.
Feng J.-X.
Tubino M.
Abstract: A flow injection configuration (FIA) based on a galvanic detector for the determination of nitrogen dioxide is described. The gaseous sample is directly injected into a gaseous carrier. The sample is transported toward the detector. The steady state measurements are not required to obtain the reproducible peak signals. The features of FIA are compared with that of continuous flow monitoring application. The flow injection system is simple, rapid and capable of detecting NO 2 in the range of 1-500 ppm (v/v). The measuring range and sensitivity of the galvanic detector in FIA depend on the sample volume. A relative standard deviation is 2.4% (n = 10) for 200 ppm (v/v) of nitrogen dioxide. The sampling frequency is about 24 h -1.
Rights: fechado
Identifier DOI: 
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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