SIMULTANEOUS DETERMINATION OF SUCROSE AND REDUCING SUGARS USING INDIRECT FLOW-INJECTION BIAMPEROMETRY

被引：22

作者：

MICHALOWSKI, J

KOJLO, A

TROJANOWICZ, M

SZOSTEK, B

ZAGATTO, EAG

机构：

[1] UNIV WARSAW,DEPT CHEM,PASTEURA 1,PL-02093 WARSAW,POLAND

[2] WARSAW UNIV BRANCH,INST CHEM,BIALYSTOK,POLAND

[3] UNIV SAO PAULO,CTR NUCL ENERGY & AGR,PIRACICABA,BRAZIL

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 271卷 / 02期

关键词：

AMPEROMETRY; FLOW INJECTION; GLUCOSE; SUCROSE; SUGARS; REDUCING SUGARS;

D O I：

10.1016/0003-2670(93)80051-L

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The method developed for the determination of sugars is based on reduction of hexacyanoferrate(III) by simple carbohydrates in a strongly alkaline medium at elevated temperature. Changes in hexacyanoferrate(III) concentration are monitored amperometrically with platinum wire electrodes polarized at 200 mV. Sucrose determination requires on-line hydrolysis in hydrochloric acid. The detection sensitivity for different simple sugars and disaccharides and the influence of several interferents were examined. Sucrose and glucose were determined with a sampling rate of 40 h-1 in natural samples from a sugar production process spiked with glucose.

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页码：239 / 246

页数：8

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