کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1166953 1491129 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rapid monitoring of mono- and disaccharides in drinks, foodstuffs and foodstuff additives by capillary electrophoresis with contactless conductivity detection
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Rapid monitoring of mono- and disaccharides in drinks, foodstuffs and foodstuff additives by capillary electrophoresis with contactless conductivity detection
چکیده انگلیسی

A capillary electrophoresis (CE) procedure with contactless conductivity detection (C4D) has been developed for monitoring of neutral mono- and disaccharides in drinks and foodstuffs. The separation of a mixture of seven neutral saccharides (glucose, fructose, galactose, mannose, ribose, sucrose and lactose) employed a quartz capillary, 5 μm i.d., with an effective length of 18.3 cm, and 75 mM NaOH (pH 12.8) as the background electrolyte (BGE). The limit of detection (LOD) values obtained lied within a range from 0.4 μmol L−1 for lactose to 0.9 μmol L−1 for ribose, with a separation time shorter than 140 s. The procedure was successfully applied to determinations of saccharides in fruit juices, Coca-Cola, milk, red and white wines, yoghurts, honey and a foodstuff additive.

Figure optionsDownload as PowerPoint slideHighlights
► Small internal diameter of capillary.
► Electrophoretic separation of neutral saccharides in highly alkaline buffers.
► Contactless conductivity detection.
► Visualization of non-absorbing saccharides.
► Rapid food analysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 698, Issues 1–2, 18 July 2011, Pages 1–5
نویسندگان
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