Osteryoung square wave voltammetric determination of lactose in food samples by a derivative procedure

Ni, Yongnian, Wang, Yuerong, & Kokot, Serge (2008) Osteryoung square wave voltammetric determination of lactose in food samples by a derivative procedure. Chinese Chemical Letters, 19(12), pp. 1491-1494.

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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.

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ID Code: 29039
Item Type: Journal Article
Refereed: Yes
Keywords: Osteryoung Square Wave Voltammetry, Lactose, Food, Milk
DOI: 10.1016/j.cclet.2008.09.052
ISSN: 1001-8417
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > School of Physical & Chemical Sciences
Deposited On: 03 Dec 2009 06:02
Last Modified: 29 Feb 2012 13:43

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