Record number :
Title of article :
Determination of carbohydrates by capillary zone electrophoresis with amperometric detection at a nano-nickel oxide modified carbon paste electrode
Author/Authors :
Cheng، نويسنده , , Xi and Zhang، نويسنده , , Shan and Zhang، نويسنده , , Hongyan and Wang، نويسنده , , Qingjiang and He، نويسنده , , Pingang and Fang، نويسنده , , Yuzhi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
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Abstract :
In this paper, a nano-NiO modified carbon paste electrode in capillary zone electrophoresis with amperometric detection (CZE-AD) was firstly applied to the determination of carbohydrates. Effects of several important factors such as detection potential, the concentration of running buffer, separation voltage and injection time were investigated to acquire the optimum conditions. Under the selected optimum conditions, three carbohydrates: glucose, sucrose and fructose could be perfectly separated within 20 min. The relationships between peak current and concentration of three carbohydrates were linear over about 3 orders of magnitude with detection limits (S/N = 3) ranging from 3.0 × 10−7 to 6.0 × 10−7 mol L−1. The electrode was stable, and can be used for at least one week. The proposed method has been successfully applied to monitor carbohydrates in the real samples with satisfactory assay results.
Keywords :
Capillary zone electrophoresis , Nano-NiO modified carbon paste electrode , amperometric detection , carbohydrates
Journal title :
Food Chemistry
Journal title :
Food Chemistry
Serial Year :
Link To Document :