Potentiometric Flow-Injection Determination of Sugars Using a Metallic Copper Electrode
作者:
P.W. Alexander,
P.R. Haddad,
M. Trojanowicz,
期刊:
Analytical Letters
(Taylor Available online 1985)
卷期:
Volume 18,
issue 16
页码: 1953-1978
ISSN:0003-2719
年代: 1985
DOI:10.1080/00032718508067964
出版商: Taylor & Francis Group
关键词: Flow-injection Analysis;Sugars;Potentiometric Detection;Metallic Copper Electrode;HPLC
数据来源: Taylor
摘要:
The determination of reducing sugars is shown to be possible by use of potentiometric detection with a metallic copper indicator electrode by either flow-injection analysis (FIA) or high-performance liquid chromatography. Various sugars including arabinose, maltose, sorbose, glucose, fructose, sucrose, lactose and xylose, give an electrode response when injected into different carrier streams composed of cupric ions in weakly complexing ligand solutions comprised of either ammonia or tartrate. Optimization of response depends on flow-rate, temperature, pH, and concentrations of carrier components. Chromatography using a cation-exchange column and post-column addition of carrier reagents similar to those used for FIA is demonstrated to give detectable separation of four sugar components with umole injection quantities.
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