DETERMINATION OF ATMOSPHERIC AMMONIA BY ALKALIZED POROUS SILICA BEADS COLLECTION AND CHEMILUMINESCENT NITROGEN DETECTOR-GAS CHROMATOGRAPHY Gas chromatographic measurement of N-containing compounds(III)

Nobuyuki KASHIHIRA; Kazuo MAKINO; Kuwako KIRITA; Yoshichika WATANABE

doi:10.2116/bunsekikagaku.31.E13

DETERMINATION OF ATMOSPHERIC AMMONIA BY ALKALIZED POROUS SILICA BEADS COLLECTION AND CHEMILUMINESCENT NITROGEN DETECTOR-GAS CHROMATOGRAPHY

Gas chromatographic measurement of N-containing compounds(III)

Nobuyuki KASHIHIRA, Kazuo MAKINO, Kuwako KIRITA, Yoshichika WATANABE

著者情報

キーワード: chemiluminescent nitrogen detector-gas chromatography, determination of ammonia in air, ambient temperature adsorption, alkalized Porasil A, polymer beads

ジャーナルフリー

1982 年 31 巻 1 号 p. E13-E19

DOI https://doi.org/10.2116/bunsekikagaku.31.E13

詳細

抄録

A simple and rapid method for determination of atmospheric ammonia has been investigated. The method is based on preconcentration with alkalized Porasil A and on analysis with a chemiluminescent nitrogen detector-gas chromatography(CLD-GC). Collection on and thermal release from the adsorbent are almost quantitative. From temperature dependence of retention volumes, it is possible to make a sampling of 5 liters at 20 °C, which allows to determine 10 ppb of ammonia in air. Results with the present method are in good agreement with those by the acid collection and the Indophenol method.

責任著者(Corresponding author)

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