CONSTRUCTION AND EVALUATION OF TUBULAR POTENTIOMETRIC DETECTORS SENSITIVE TO CHLORIDE, BROMIDE, AND IODIDE AND BASED ON HOMOGENEOUS CRYSTALLINE MEMBRANES

被引：29

作者：

FERREIRA, IMPLVO ^{[1
]}

LIMA, JLFC ^{[1
]}

ROCHA, LSM ^{[1
]}

机构：

[1] FAC FARM PORTO,DEPT QUIM FIS,RUA ANIBAL CUNHA 164,P-4000 OPORTO,PORTUGAL

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 347卷 / 8-9期

关键词：

D O I：

10.1007/BF00323813

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The construction of tubular potentiometric detectors is described, without an inner reference solution, sensitive to chloride, bromide, and iodide. They are based on homogeneous crystalline membranes obtained by high-pressure pressing of AgX/Ag2S powdered mixtures (X = Cl, Br and 1). The respective operating characteristics are evaluated by comparison with conventionally-shaped electrodes with the same sensor. In general, the detectors showed similar operating characteristics as those of the corresponding conventional electrodes, namely the concentration range, in which they presented a Nernstian response, an excellent reproducibility, and an extremely rapid response rate which in some cases enabled the FIA manifolds to attain sampling rates of 360 samples/h.

引用

页码：314 / 319

页数：6

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