A NEW LIQUID-JUNCTION FREE PROBE FOR THE INSITU DETERMINATION OF PH, PH2S AND REDOX VALUES

被引：13

作者：

ECKERT, W

FREVERT, T

TRUPER, HG

机构：

[1] UNIV BONN,DEPT MICROBIOL,W-5300 BONN 1,GERMANY

[2] FRESENIUS CONSULT GMBH,W-6204 TAUNUSSTEIN 4,GERMANY

来源：

WATER RESEARCH | 1990年 / 24卷 / 11期

关键词：

hydrogen sulphide detection; in situ potentiometry; liquid-junction; pH-determination; redox measurement; reference electrode;

D O I：

10.1016/0043-1354(90)90151-U

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A novel in situ device for the direct potentiometric detection of pH, pe and pH2S values (where p = -log activity) is introduced. The mechanical and electrochemical problems associated with liquid-junction type reference cells for pH and pe measurements are avoided by using an alkali glass electrode as a reference. The probe displayed stable EMF readings irrespective of hydrostatical pressure, temperature gradients and the presence of hydrogen sulphide when it was deployed in Lake Kinneret, Israel. © 1990.

引用

页码：1341 / 1346

页数：6

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