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|標題:||Amperometric determination of sugars at activated barrel plating nickel electrodes||作者:||Sue, J.W.
|關鍵字:||nickel;amperometry;sugars;barrel plating electrode;honey;flow-injection analysis;pulsed electrochemical detection;capillary-zone-electrophoresis;liquid-chromatography;alloy electrode;amino-acids;detector;separation;chromium;glucose||Project:||Electroanalysis||期刊/報告no：:||Electroanalysis, Volume 20, Issue 15, Page(s) 1647-1654.||摘要:||
We report amperometric determination of sugars by using a disposable barrel plating nickel electrode (Ni-BPE) in this study. The activated Ni-BPE possesses good reproducibility in flow injection analysis of sugars with a relative standard deviation of 3.16% for 10 consecutive injections of glucose. The electrocatalytic mechanism for the detection of sugars as welt as the use as a detector in high-performance liquid chromatography (HPLC) is investigated. We achieve a good separation of four sugars (glucose, fructose, sucrose, and maltose) in HPLC with favorable sensitivity at a detection potential of +0.55 V vs. Ag/AgCl. The results of wide linear calibration ranges and detection limits in the mu M range meet the need of real sample analysis. This detection method is successfully used for quantitative determination of sugars in honey to identify its authentication.
|Appears in Collections:||化學系所|
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