Potentiometric Determination of Menadione (Vitamin K 3 )
β Scribed by Rizk, Nashwa M. H.
- Book ID
- 106198053
- Publisher
- Springer-Verlag
- Year
- 2002
- Weight
- 92 KB
- Volume
- 138
- Category
- Article
- ISSN
- 0344-838X
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## Abstract The effect of added menadione (vitamin K~3~) to stored corn and wheat germ oil on the dissolution and dimerization of natural tocopherols and autoβoxidation of triacylglycerols were investigated. Samples of corn and wheat germ oils pure and with added menadione were stored at +20Β°C in b
A sensitive method for the determination of vitamin \(\mathrm{K}_{3}\) using cathodic stripping voltammetry is presented. Using sodium sulfate as the supporting electrolyte at \(\mathrm{pH} 1.70-1.85\), a reductive peak ( \(-0.64 \mathrm{~V}\) vs SCE) is observed. The detection limit is \(1 \times 1