Articles on: HPLC

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The HPLC method used a C8 column and the potassium chloride in aqueous acetic acid as a mobile phase with a linear gradient. The retention time was a bit over 20 min and the identity of the peak was confirmed as furosine by MS (mass spectrometry).

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During the heating process carbonyl groups of sugars react with amino groups of amino acids and peptides forming a variety of products. The products of this, so-called, Maillard reaction contribute to flavor, aroma, and color of soy milk.

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Nano HPLC is a relatively new development in chromatography world driven by recent advancements in proteomics that would require decreasing of inner diameter (ID) of liquid chromatography (LC) column to allow for a smaller sample amount and to increase sensitivity.

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Scientist at Weber State University developed methods for extraction, identification and quantitation of xanthones and their derivatives: alpha-mangostin, 8-desoxygartanin, gartanin, beta-mangostin, 3-mangostin, and 9-hydroxycalabaxanthone.

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Scientists from University of Hertfordshire (UK) are using new chemistry laboratories to analyze a random selection of red wines to determine the levels of resveratrol which is a natural antioxidant found in red wine and red grape skins

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Another great LC system by Agilent provides up to 20 times faster analysis and 60 % higher resolution than conventional HPLC without sacrificing resolution, precision or sensitivity and while keeping system pressure at a minimum.

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