等速電気泳動法による脂肪酸の分析

概要

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Operating conditions for the qualitative and quantitative determination of fatty acids and several phosphono-fatty acids were investigated by capillary-tube isotachophoresis using a potential gradient detector. <BR>Behenoic acid-NaOH (or Na-behenoate, or K-behenoate) in methanol as a terminal electrolyte and HCl-Tris in methanol as a leading electrolyte were effective for analysis of fatty acids. The potential unit (PU) values for capillary-tube isotachophoresis depended on the molecular weight of fatty acids. The isotachophoretic sensitivities of fatty acids decreased with increasing carbon chain length of the fatty acids. <BR>Isotachophoregrams of phosphono fatty acids showed only one zone coresponding to the secondary dissociated ion species. The results regarding phosphono-fatty acids are discussed in terms of charge.
社団法人日本油化学会の論文