Characterization of an ion-selective electrode wall-jet detector for flow injection analysis

Journal Article · Sat Apr 15 00:00:00 EDT 1989 · Analytical Chemistry; (USA)

DOI:https://doi.org/10.1021/ac00183a029· OSTI ID:5174915

Douglas, J G ^[1]

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1. Westinghouse Hanford Co., Richland, WA (USA)

Because of its many advantages, the voltammetric wall-jet detector (WJD) has become popular for use in liquid chromatography, flow injection analysis (FIA), and continuous flow analysis. There are, however, few studies of wall-jet detectors with ion-selective electrodes. Of these, only Frenzel and Braetter extensively investigated the ion-selective electrode wall-jet detector (ISE-WJD). While concluding the wall-jet was the best of several possible ISE detector configurations, Frenzel and Braetter did not describe optimized operating conditions for the ISE-WJD. This work describes a simply constructed ISE-WJD; a fluoride-selective electrode was used to investigate the effects of flow rate, jet-nozzle electrode distance, jet-orifice diameter, and sample size and detector performance. Equipped with a flat-membrane pH electrode, the ISE-WJD was also explored for the FIA determination of pH.

• DOE Contract Number: AC06-87RL10930
• OSTI ID: 5174915
• Journal Information: Analytical Chemistry; (USA), Vol. 61:8; ISSN 0003-2700
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ION-SELECTIVE ELECTRODES
PERFORMANCE
DISTANCE
EXPERIMENTAL DATA
FLOW RATE
FLUID FLOW
INJECTION
OPTIMIZATION
PH VALUE
SIZE
VOLTAMETRY
DATA
ELECTRODES
INFORMATION
INTAKE
NUMERICAL DATA
400105* - Separation Procedures
400400 - Electrochemistry