Determinação de traços de Co e Co2 "em linha" por cromatografia em fase gasosa

Química Nova

Rosangela Novaes De Jesus²  Jailson B. De Andrade¹ 

[1] ,UFBA Instituto de Química Salvador BA

关键词: carbon monoxide;    carbon dioxide;    gas chromatography;   

DOI  :  10.1590/S0100-40421998000400019

来源: SciELO

【 摘 要 】

The present work describes a rapid and sensitive method for the determination of carbon monoxide and carbon dioxide at low concentration levels, on line, in ethylene and hydrogen lines. These gases were separated in a column filled with Porapak Q, converted to methane and quantified by a flame ionization detector. Some modifications were made in the injection system and in the lines of the carrier gas. The detection limits of 2,6 ppbV and 4,85 ppbV for CO and CO2, respectively, were reached after modifications.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License