A study of regulators for delivering gases containing low concentrations of hydrogen sulfide

被引：0

作者：

Talbert, B ^{[1
]}

Benesch, R ^{[1
]}

Haouchine, M ^{[1
]}

Jacksier, T ^{[1
]}

机构：

[1] Chicago Res Ctr, Countryside, IL 60525 USA

来源：

LC GC NORTH AMERICA | 2004年 / 22卷 / 06期

关键词：

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Four regulators have been compared for use with low-level reactive mixtures. It was verified experimentally that a two-stage low-volume regulator made of stainless steel was suitable for use with hydrogen sulfide at a concentration of 100 ppb. This regulator does not require passivation when used with flow rates of at least 100 mL/min. Aluminum and nickel-plated brass regulators of the same design were not suitable. Although a traditional two-stage corrosive service regulator constructed of stainless steel could be used, significant passivation times were required to achieve a comparable steady-state level.

引用

页码：562 / +

页数：4

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