Examination of Alkali Impregnated Filter Papers of Calcium Carbonate and Magnesium Hydroxide for the Measurement of Gas Phase Boron Compounds Used in the Inside Stack Sampler

Abstract

For the emission gas concentration measurement of sublimable gas phase boron compounds, the optimal collector material applied to the inside stack sampler (the type-1 stack sampler developed in our previous article) was examined. The collection efficiency of alkali impregnated filter paper of calcium carbonate and magnesium hydroxide was investigated by the use of artificial stack. It was revealed that calcium carbonate filter paper have a high collection efficiency and fully applicable to the type-1 stack sampler equally to potassium carbonate filter paper examined in our previous study. However, magnesium hydroxide filter paper is not suitable for the collection agent.