2010•Environmental Monitoring and ForewarningRequires access

Problems and Solution on the Interference in Sulfur Dioxide Analysis with Fixed-potential Electrolysis

Bai Song

Abstract

Gas pressure,moisture content and interference gas could affect sulphur dioxide concentration monitoring,and sometimes even produce a gravely deviates.Based on the principle of sulfur dioxide measured by fixed-potential electrolysis,we proposed several solutions:adding heating/condensing function on the sampling tube,keeping a suitable sampling flow and using prepositive pump to reduce the subpressure when it is beyond 2.3kPa,calculating the critical concentration,modifying the software,and so on.

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Key concepts: Sulfur dioxide, Electrolysis, Interference (communication), Chemistry, Sampling (signal processing), Flow (mathematics), Sulfur, Analytical Chemistry (journal)