Polyethyleneimine-coated capillary electrophoresis capillaries for the analysis of organic acids with an application to beverages

NUTKU, MS; Erim, Fatma

doi:10.1002/(sici)1520-667x(1999)11:7<541::aid-mcs6>3.3.co;2-6

Polyethyleneimine-coated capillary electrophoresis capillaries for the analysis of organic acids with an application to beverages

Atıf İçin Kopyala

NUTKU M., Erim F. B.

JOURNAL OF MICROCOLUMN SEPARATIONS, cilt.11, sa.7, ss.541-543, 1999 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 11 Sayı: 7
Basım Tarihi: 1999
Doi Numarası: 10.1002/(sici)1520-667x(1999)11:7<541::aid-mcs6>3.3.co;2-6
Dergi Adı: JOURNAL OF MICROCOLUMN SEPARATIONS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.541-543
İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The determination of the organic acids, tartaric, malic, citric, lactic, succinic, and acetic, by capillary electrophoresis was investigated. The acids were separated on a polyethyleneimine (PEI)-coated capillary filled with 20 mM 6-aminohexanoic acid and 5 mM 2,4-dihydroxybenzoic acid and adjusted to pH 4.9. The anodic electroosmotic flow generated by the PEI coating favors the separation speed of organic acids. The method was applied to the determination of organic acids in white wine and fruit juices. (C) 1999 John Wiley & Sons, Inc.