Please use this identifier to cite or link to this item:
|Title:||Application of adsorptive stripping differential pulse voltammetry with chemometrics in the determination of ascorbic acid, rutin and quercetin in the food and health products|
|Keywords:||Flavonoids;Adsorptive stripping differential pulse voltammetry;Chemometrics methods|
|Abstract:||The simultaneous determination of ascorbic acid, rutin and quercetin in the food and health products on the glassy carbon electrode have been investigated by adsorptive stripping differential pulse voltammetry (AdSDPV) with the aid of chemometrics. In the pH 5.2 KH2PO4 – Na2HPO4 buffer solution, both rutin and quercetin has shown a pair of sensitive reversible oxidation-reduction peak, while ascorbic acid only has shown an irreversible oxidation peak on the glassy carbon electrode. In the range of 0.35-0.50 V, the vlotammograms of three components has shown serious overlap with peak potential of ascorbic acid, rutin and quercetin. So, it is extremely difficult to realize direct measurement for the content of single component. Chemometrics methods have been introduced to determine the admixture of the three components. In this way, we have avoided the troublesome procedures of separation and purification, and assay the artificial compound of the three components all at once. We have estimated the three components in the food and the health products with satisfactory results.|
|Appears in Collections:||IJC-A Vol.59A(07) [July 2020]|
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.