REMOVAL OF DISSOLVED-OXYGEN FROM WATER - A COMPARISON OF 4 COMMON TECHNIQUES

被引：252

作者：

BUTLER, IB ^{[1
]}

SCHOONEN, MAA ^{[1
]}

RICKARD, DT ^{[1
]}

机构：

[1] SUNY STONY BROOK,DEPT EARTH & SPACE SCI,STONY BROOK,NY 11794

来源：

TALANTA | 1994年 / 41卷 / 02期

关键词：

D O I：

10.1016/0039-9140(94)80110-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Four common techniques for the removal of dissolved oxygen from water have been examined: boiling at 1 atm, boiling under reduced pressure, purging with N2 and sonication under reduced pressure. After treatment, the residual oxygen in solution was analysed by the Winkler method. Nitrogen purging for 20-40 min at flow rate of 25 mL/s was found to be the most effective oxygen removal method. Boiling at 1 atm was found to be the least effective. None of the techniques evaluated here lead to complete removal of oxygen. The concentration of residual dissolved oxygen after purging for 20-40 minutes with nitrogen is 0.2-0.4 ppm.

引用

页码：211 / 215

页数：5

共 16 条

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