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Observations on a dropping-mercury electrochemical detector for flow-injection analysis and HPLC
1The Chemical Laboratories, The University of Kent at Canterbury, Kent, England.
Talanta
|April 1, 1981
Summary
This study details an electrochemical detector cell with a fast-dropping mercury electrode for flow-injection analysis and HPLC. It analyzes electroreducible species, discussing its performance against other electrochemical detectors.
Area of Science:
- Analytical Chemistry
- Electrochemistry
Background:
- Electrochemical detectors are crucial for sensitive analysis in chromatography.
- Dropping mercury electrodes offer unique advantages in electrochemical detection.
Purpose of the Study:
- To evaluate an electrochemical detector cell featuring a dropping mercury electrode.
- To explore its utility in flow-injection analysis (FIA) and high-performance liquid chromatography (HPLC).
Main Methods:
- Utilized a novel electrochemical detector cell with a horizontal capillary dropping mercury electrode.
- Varied mercury drop rates using a control device.
- Applied the detector to analyze inorganic and organic electroreducible species.
Main Results:
- Demonstrated the capability of delivering mercury at adjustable, fast drop rates.
- Successfully applied the detector to the analysis of various electroreducible compounds.
- Provided a comparative analysis of advantages and limitations.
Conclusions:
- The described electrochemical detector cell is a viable tool for FIA and HPLC.
- Its adjustable drop rate and mercury electrode offer specific benefits for detecting electroreducible species.
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