期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1074, 期 1-2, 页码 205-213出版社
ELSEVIER
DOI: 10.1016/j.chroma.2005.03.062
关键词
nonaqueous capillary electrophoresis; phospholipids; dielectric constant; ion-dipole interaction; plant seeds
A method has been developed for the separation and determination of phospholipids by nonaqueous capillary electrophoresis in a separation medium of acetonitrile-2-proponol (3:2, v/v), 0.3% acetic acid and 60mM ammonium acetate. To optimize the separation conditions, the composition of separation medium including alcohols, acetic acid, n-hexane and ammonium acetate was studied. The solvation interaction and ion-dipole interaction were also investigated. The contents of phospholipids in soybean, sunflower, peanut, apricot kernel, filbert and walnut were determined by the recommended method. The results obtained by the nonaqueous capillary electrophoreses were in good agreement with those determined by micellar electrokinetic chromatography. (c) 2005 Elsevier B.V. All rights reserved.
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