✦ LIBER ✦
Automated determination of molybdenum(VI) in seawater by means of constant-current reduction of the adsorbed 8-quinolinol complex in a computerized flow potentiometric stripping analyzer
✍ Scribed by Chi Hua; Daniel Jagner; Lars Renman
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 370 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
Molybdenum(V1) in seawater is determined by means of potentiostatic adsorption of the 8quinolinol complex onto a mercury film electrode at -0.2 V vs. SCE and subsequent reduction of the complex by means of constant-current stripping in 5 M calcium chloride medium with a fully automated stripping analyzer. A single stripping peak at -0.42 V vs. SCE was obtained. The molybdenum(V1) concentration in reference seawater NASS-1, with a certified value of 11.5 + 1.9 pg 1-l , was found to be 8.9 f 1.3 /.lg 1-l (n = 10).