Determination of lactose in sugar-free milk powder by capillary electrophoresis with electrochemical detection

被引：21

作者：

Zhang, X ^{[1
]}

Cao, YH ^{[1
]}

Ye, JN ^{[1
]}

机构：

[1] E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China

来源：

FOOD CHEMISTRY | 2001年 / 72卷 / 03期

关键词：

capillary electrophoresis; electrochemical detection; lactose; sugar free; milk powder;

D O I：

10.1016/S0308-8146(00)00242-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Lactose in three sugar-free milk powder samples were satisfactorily determined by capillary electrophoresis with electrochemical detection using a 300 mum copper disk electrode as the working electrode in 0.1 mol/l NaOH medium. There was acceptable linearity (0.9969) between the peak current and concentration of lactose in the range from 5.0x10(-6) to 5.0x10(-3) g/ml with the detection limit (S/N = 3) of 1x10(-7)g/ml. The proposed method was successfully applied to analyze the actual milk powder samples. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：385 / 388

页数：4

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