𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Catalytic Fluorimetric Determination of Trace Cobalt in Vitamin B12

✍ Scribed by Guien Zhang; Suling Feng; Dingxi Cheng

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
86 KB
Volume
53
Category
Article
ISSN
0026-265X

No coin nor oath required. For personal study only.

✦ Synopsis

A new kinetic fluorimetric method is proposed for the determination of trace cobalt, based on the catalytic oxidation of reduced fluoresceine with hydrogen peroxide in the presence of triethanolamine as activator in a basic medium. The detection limit for cobalt is 0.016 ng/ml and the linear range of the determination is 0.08-1.40 ng/ml. The application of this method to the determination of trace cobalt in vitamin B 12 samples shows satisfactory results.

πŸ“œ SIMILAR VOLUMES

A novel inhibitory kinetic fluorimetric
A novel inhibitory kinetic fluorimetric method for the determination of trace methomyl in environmental samples
✍ Jing Fan; Xiaojing Shao; Haizhu Xu; Suling Feng πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 162 KB πŸ‘ 2 views

## Abstract A novel inhibitory kinetic fluorimetric method for the determination of trace methomyl was proposed. It was shown that the Fenton reagent oxidized rhodamine B in acid medium which enabled the fluorescence quenching of the latter. The presence of trace methomyl clearly inhibited the reac