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C P Ong

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Articles 14
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Recent Articles
1.
Ong C, Ng C, Chong N, Lee H, Li S
Environ Monit Assess . 2013 Nov; 19(1-3):93-103. PMID: 24233929
The use of micellar electrokinetic capillary chromatography (MECC) for the separation of eleven substituted phenols listed by the United States Environmental Protection Agency as priority pollutants was demonstrated. The effects...
2.
Yao Y, Khan M, Ong C, Lee H, Li S
Environ Monit Assess . 2013 Nov; 19(1-3):83-91. PMID: 24233928
Optimization procedures for the reversed-phase separations of six phthalates using the isoselective multisolvent gradient elution (IMGE) system are described. A systematic experimental design has been employed to gather retention data...
3.
Yik Y, Ong C, Khoo S, Lee H, Li S
Environ Monit Assess . 2013 Nov; 19(1-3):73-81. PMID: 24233927
The effect of varying SDS concentration in a micellar electrokinetic capillary chromatographic system (MECC) is investigated. In addition, the introduction of γ-cyclodextrin as modifier to the electrophoretic medium, containing SDS...
4.
Ong C, Lee H, Li S
Environ Monit Assess . 2013 Nov; 19(1-3):63-71. PMID: 24233926
A rapid and simple method is described for the quantitative determination of polycyclic aromatic hydrocarbons in aqueous environmental samples. A microscale on-line supercritical fluid extraction-supercritical fluid chromatography system using carbon...
5.
Yeo S, Ong C, Lee H, Li S
Environ Monit Assess . 2013 Nov; 19(1-3):47-53. PMID: 24233924
The applications of Freon-22 (R22) as a mobile phase and as a modifier in supercritical fluid chromatography were investigated. For the purpose of this investigation, the separation of eleven phenols...
6.
Ong C, Khan M, Li S, Lee H
Environ Monit Assess . 2013 Nov; 19(1-3):35-46. PMID: 24233923
This paper describes the use of the overlapping resolution mapping procedure to optimize the separation of priority pollutants by isocratic, reversed-phase high-performance liquid chromatography. Three classes of pollutants are considered:...
7.
Lee R, Ong C, Jacobsen A, Chan M, Hwang W
J Pediatr Surg . 2011 Mar; 46(3):554-8. PMID: 21376209
Malignant peripheral nerve sheath tumor is a rare neurogenic tumor that usually presents in geriatic patients. Typically, it is found in the trunk and extremities and rarely presents in the...
8.
Ng C, Ong C, Lee H, Li S
J Chromatogr A . 1994 Oct; 680(2):579-86. PMID: 7981835
In the first part of this work, the use of capillary electrophoresis (CE) for the separation of two groups of pharmaceuticals, namely a metabolite of tamoxifen and a basic drug...
9.
Ong C, Ng C, Lee H, Li S
Electrophoresis . 1994 Oct; 15(10):1273-5. PMID: 7895717
The use of mixed surfactants for the separation of nine phenylthiohydantoin amino acids (PTH amino acids) by micellar electrokinetic chromatography (MEKC) was examined. The potential of a mixed surfactant system,...
10.
Ong C, Portner R, Markl H, Yamazaki Y, Yasuda K, Matsumura M
J Biotechnol . 1994 May; 34(3):259-68. PMID: 7764959
A porous carrier whose surface is charged with polyethyleneimine (PEI) was evaluated for high-density cultivation of immobilized hybridoma cells. The carrier was used either in suspension or in fixed bed....