Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1258299 | Chinese Chemical Letters | 2008 | 4 Pages |
Abstract
A method for determination of lactose in food samples by Osteryoung square wave voltammetry (OSWV) was developed. It was based on the nucleophilic addition reaction between lactose and aqua ammonia. The carbonyl group of lactose can be changed into imido group, and this increases the electrochemical activity in reduction and the sensitivity. The optimal condition for the nucleophilic addition reaction was investigated and it was found that in NH4Cl–NH3 buffer of pH 10.1, the linear range between the peak current and the concentration of lactose was 0.6–8.4 mg L−1, and the detection limits was 0.44 mg L−1. The proposed method was applied to the determination of lactose in food samples and satisfactory results were obtained.
Related Topics
Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Yong Nian Ni, Yue Rong Wang, Serge Kokot,