ヨウ素でん粉比色法による二酸化イオウ濃度連続測定装置の試作

DOI Web Site Web Site

書誌事項

タイトル別名
  • Instrumentation of a continuous sulfur dioxide analyzer based on starch-iodine colorimetry
  • ヨウソ デンプン ヒショクホウ ニ ヨル 2サンカ イオウ ノウド レンゾク ソクテイ ソウチ ノ シサク

この論文をさがす

説明

An apparatus has been presented for the continuous determination of sulfur dioxide concentration in air, which involves the spectrophotometric measurement of the change of absorbance of starch-iodine solution.<BR>The reagent solution passing through a reference cell is sent to a measuring cell after the reductive decolorization by a contact with sulfur dioxide in air in an absorption column. The difference in the absorbance of the two cells at wavelength 600 mμ is continuously read using a CdS photoconductive cell, by which is given the change of concentration of sulfur dioxide. Among the other pollutants in air, chlorine, hydrogen sulfide and ozone interfere, but carbon dioxide, ammonia, hydrocarbons and carbon monoxide do not. The results of determination indicate that the concentrations of sulfur dioxide in air were generally below 0.01 ppm in urban suburbs, but were 0.20.45 ppm in the vicinity of the street crossings, which showed an almost linear response to the amount of traffics.

収録刊行物

  • 分析化学

    分析化学 17 (4), 417-422, 1968

    公益社団法人 日本分析化学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ