TY - JOUR
T1 - Polyethyleneimine-coated capillary electrophoresis capillaries for the analysis of organic acids with an application to beverages
AU - Nutku, M. Said
AU - Erim, F. Bedia
PY - 1999
Y1 - 1999
N2 - 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.
AB - 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.
KW - Beverages
KW - Capillary electrophoresis
KW - Organic acids
KW - Polyethyleneimine coating
UR - http://www.scopus.com/inward/record.url?scp=0000106847&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1520-667X(1999)11:7<541::AID-MCS6>3.0.CO;2-F
DO - 10.1002/(SICI)1520-667X(1999)11:7<541::AID-MCS6>3.0.CO;2-F
M3 - Article
AN - SCOPUS:0000106847
SN - 1040-7685
VL - 11
SP - 541
EP - 543
JO - Journal of Microcolumn Separations
JF - Journal of Microcolumn Separations
IS - 7
ER -