液滴界面を利用する二酸化窒素のパッシブサンプリング法

概要

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The droplet method, developed by Dasgupta et. al., was applied to soluble constituents contained in the gas phase. They diffused to and dissolved into the liquid drop as gas stream flows across a liquid droplet. From the view point of environmental analytical chemistry, this droplet has a potential sampling interface for such soluble constituents. This paper describes the coupling of this passive sampling interface with a sequential spectrophotometric analysis system, the behavior of the liquid droplet as a collection interface using a wind-tunnel method and nitrogen dioxide as a test gas, and an evaluation of the performance of this experimental arrangement. Several aspects of the demonstration of its applicability for measuring ppb levels of gaseous nitrogen dioxide in a rural atmospheric environment were obtained by using a polyacrylate wind tunnel with satisfactory results.
社団法人日本分析化学会の論文
1998-12-05