รหัสดีโอไอ 10.14457/CU.the.2009.1668
Title Comparison and prediction of retention of disubstituted aromatic compounds in capillary electrokinetic chromatography
Creator Siriporn Angkanasiriporn
Contributor Thumnoon Nhujak
Publisher Chulalongkorn University
Publication Year 2009
Keyword Aromatic compounds ,Capillary liquid chromatography ,Electrokinetics ,สารประกอบอะโรมาติก ,จลนศาสตร์ไฟฟ้า
Abstract Retention index (I), rather than retention factor (k) was found to be a more reasonable parameter for comparison of the relative affinity of disubstituted benzenes in MEEKC and MEKC, due to independent of I with the SDS surfactant concentration. MEKC and MEEKC may give similar or different I values, depending on types of moieties. With known I and Kow for alkylbenzenes as references in MEKC and MEEKC, the values of log Kow for disubstituted benzenes can be estimated from the observed I values, where Kow is the octanol-water distribution constant. In addition, a group additive approach can be used to predict I for disubstituted benzenes with different moieties from the average observed I for the disubstituted benzenes with the same moieties. However, electronic effects and/or intramolecular interaction may result in the different observed I from prediction.
URL Website cuir.car.chula.ac.th
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บรรณานุกรม

Siriporn Angkanasiriporn,Thumnoon Nhujak. (2009) Comparison and prediction of retention of disubstituted aromatic compounds in capillary electrokinetic chromatography. Chulalongkorn University:ม.ป.ท.
Siriporn Angkanasiriporn,Thumnoon Nhujak. 2009. Comparison and prediction of retention of disubstituted aromatic compounds in capillary electrokinetic chromatography. ม.ป.ท.:Chulalongkorn University;
Siriporn Angkanasiriporn,Thumnoon Nhujak. Comparison and prediction of retention of disubstituted aromatic compounds in capillary electrokinetic chromatography. ม.ป.ท.:Chulalongkorn University, 2009. Print.