Pico molar assay of riboflavin in human urine using voltammetry SCIE SCOPUS

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Title
Pico molar assay of riboflavin in human urine using voltammetry
Author(s)
Ly, Suw Young; Yoo, Hai Soo; Ahn, Joon Young; Nam, Kwang Hee
Publication Year
2011-07-01
Abstract
Using a new type of DNA and carbon nano tube (CNT) mixed paste electrode using cyclic and square wave anodic stripping voltammetric (SWASV) methods, this study presents an assay of riboflavin (RF) under optimum conditions. Results of the experiment yielded a low working concentration range of nanograms with 1-10 and 10-170 ng L-1 and 5-105 mu g L-1, at an accumulation time of 80 s in a 0.1 M H3PO4 electrolyte solution. A relative standard deviation of 30 mu g L-1 was observed at an accuracy level of 0.1164% (n = 15) under optimum conditions. The detection limit (S/N) was pegged at 0.2 ng L-1 (5.31 x 10(-13) mol L-1 RF). The proposed method was successfully applied to an actual human urine and drug sample, and can be applied to assays of other biological samples. (C) 2011 Elsevier Ltd. All rights reserved.
ISSN
0308-8146
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3843
DOI
10.1016/j.foodchem.2010.12.107
Bibliographic Citation
FOOD CHEMISTRY, v.127, no.1, pp.270 - 274, 2011
Publisher
ELSEVIER SCI LTD
Subject
ADSORPTIVE STRIPPING VOLTAMMETRY; ELECTRODE; MEDIA
Keywords
Riboflavin; Voltammetry; DNA; Graphite nanotube; Paste electrode; Urine
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCI LTD
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