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|Title:||Capillary electrophoresis with capacitively coupled contactless conductivity detection for low molecular weight organic acids in different samples|
|Authors:||Law, W.S. |
Yau Li, S.F.
Capillary electrophoresis with capacitively coupled contactless conductivity detection
Chinese herbal medicine
Low molecular weight organic acids
|Citation:||Law, W.S., Zhao, J.H., Hauser, P.C., Yau Li, S.F. (2007-12). Capillary electrophoresis with capacitively coupled contactless conductivity detection for low molecular weight organic acids in different samples. Journal of Separation Science 30 (18) : 3247-3254. ScholarBank@NUS Repository. https://doi.org/10.1002/jssc.200700306|
|Abstract:||CE with capacitively coupled contactless conductivity detection (CE-C4D) was explored and validated for the identification and quantification of organic acids in various types of samples. The analyses were performed under optimized conditions, using a buffer system composed of 20 mM MES-histidine (His), pH 6.0, 0.1 mM CTAB, 0.025% HP-β-CD, and 10% methanol. The investigation included a study of the effects of buffer pH, concentration of CTAB, type and concentration of organic additives, on the migration behavior, resolution and selectivity of the organic acids. The intra-and interday RSDs (n = 6) obtained for migration time and peak area were typically in the range of 0.12-2% and 0.5-4%, respectively. Linearity, detection limits, and repeatability were evaluated. In order to evaluate the application potential of the developed method, real samples from different sources were analyzed. The results demonstrate that CE-C4D is a versatile tool for analyzing organic acids in beverages, Chinese herbal medicines (CHM) and plants as it allows for their detection, identification, and quantification. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.|
|Source Title:||Journal of Separation Science|
|Appears in Collections:||Staff Publications|
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