Calibration of the Hg chalcogenide glass membrane ion-selective electrode in seawater media
β Scribed by Roland De Marco; James Shackleton
- Book ID
- 117224878
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 105 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0039-9140
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Continuous flow analysis (CFA) is suitable for rapid and reliable determination of free Fe III in organic-free, UV-oxidized seawater when used in conjunction with an extrapolation method that predicts the steady-state potentials of an Fe III chalcogenide glass ion-selective electrode (ISE) by using
The glass electrode is calibrated on the concentration scale against the hydrogen electrode from measurements of the potentials of the two electrodes immersed in the same buffer. The p[H+] of the buffer is changed between 2 and 11 by addition of base. The difference in potential between the electrod