| Pressurized hot water extraction (PHWE) CC Teo, SN Tan, JWH Yong, CS Hew, ES Ong Journal of chromatography A 1217 (16), 2484-2494, 2010 | 630 | 2010 |
| Extraction methods and chemical standardization of botanicals and herbal preparations ES Ong Journal of Chromatography B 812 (1-2), 23-33, 2004 | 331 | 2004 |
| Simultaneous analysis of different classes of phytohormones in coconut (Cocos nucifera L.) water using high-performance liquid chromatography and liquid chromatography–tandem … Z Ma, L Ge, ASY Lee, JWH Yong, SN Tan, ES Ong Analytica chimica acta 610 (2), 274-281, 2008 | 278 | 2008 |
| Pressurized hot water extraction of bioactive or marker compounds in botanicals and medicinal plant materials ES Ong, JSH Cheong, D Goh Journal of Chromatography A 1112 (1-2), 92-102, 2006 | 260 | 2006 |
| Pressurized hot water extraction of berberine, baicalein and glycyrrhizin in medicinal plants ES Ong, SM Len Analytica Chimica Acta 482 (1), 81-89, 2003 | 187 | 2003 |
| Pressurized liquid extraction of berberine and aristolochic acids in medicinal plants ES Ong, SO Woo, YL Yong Journal of Chromatography A 904 (1), 57-64, 2000 | 151 | 2000 |
| Identification of kinetin and kinetin riboside in coconut (Cocos nucifera L.) water using a combined approach of liquid chromatography–tandem mass spectrometry, high … L Ge, JWH Yong, NK Goh, LS Chia, SN Tan, ES Ong Journal of Chromatography B 829 (1-2), 26-34, 2005 | 149 | 2005 |
| Emerging green technologies for the chemical standardization of botanicals and herbal preparations MY Heng, SN Tan, JWH Yong, ES Ong TrAC Trends in Analytical Chemistry 50, 1-10, 2013 | 132 | 2013 |
| Inhibitory Effects of a Chemically Standardized Extract from Scutellaria barbata in Human Colon Cancer Cell Lines, LoVo D Goh, YH Lee, ES Ong Journal of Agricultural and Food Chemistry 53 (21), 8197-8204, 2005 | 123 | 2005 |
| Validation of green‐solvent extraction combined with chromatographic chemical fingerprint to evaluate quality of Stevia rebaudiana Bertoni CC Teo, SN Tan, JWH Yong, CS Hew, ES Ong Journal of separation science 32 (4), 613-622, 2009 | 121 | 2009 |
| Evaluation of the extraction efficiency of thermally labile bioactive compounds in Gastrodia elata Blume by pressurized hot water extraction and microwave-assisted extraction CC Teo, SN Tan, JWH Yong, CS Hew, ES Ong Journal of Chromatography A 1182 (1), 34-40, 2008 | 118 | 2008 |
| Metabolic profiling in colorectal cancer reveals signature metabolic shifts during tumorigenesis. ES Ong, L Zou, S Li, PY Cheah, KW Eu, CN Ong Molecular & cellular proteomics: MCP, 2010 | 109 | 2010 |
| Analyses of gibberellins by capillary electrophoresis–mass spectrometry combined with solid-phase extraction L Ge, CYC Peh, JWH Yong, SN Tan, L Hua, ES Ong Journal of chromatography A 1159 (1-2), 242-249, 2007 | 108 | 2007 |
| Analysis of some cytokinins in coconut (Cocos nucifera L.) water by micellar electrokinetic capillary chromatography after solid-phase extraction L Ge, JWH Yong, SN Tan, XH Yang, ES Ong Journal of Chromatography A 1048 (1), 119-126, 2004 | 99 | 2004 |
| A multi-analytical approach for metabolomic profiling of zebrafish (Danio rerio) livers ES Ong, CF Chor, L Zou, CN Ong Molecular BioSystems 5 (3), 288-298, 2009 | 95 | 2009 |
| Chemical assay of glycyrrhizin in medicinal plants by pressurized liquid extraction (PLE) with capillary zone electrophoresis (CZE) ES Ong Journal of Separation Science 25 (13), 825-831, 2002 | 95 | 2002 |
| Determination of senkirkine and senecionine in Tussilago farfara using microwave-assisted extraction and pressurized hot water extraction with liquid chromatography tandem mass … Z Jiang, F Liu, JJL Goh, L Yu, SFY Li, ES Ong, CN Ong Talanta 79 (2), 539-546, 2009 | 82 | 2009 |
| Evaluation of surfactant assisted pressurized liquid extraction for the determination of glycyrrhizin and ephedrine in medicinal plants ATW Eng, MY Heng, ES Ong Analytica chimica acta 583 (2), 289-295, 2007 | 81 | 2007 |
| Determination of pyrrolizidine alkaloids in comfrey by liquid chromatography–electrospray ionization mass spectrometry F Liu, SY Wan, Z Jiang, SFY Li, ES Ong, JCC Osorio Talanta 80 (2), 916-923, 2009 | 72 | 2009 |
| Metabonomics investigation of human urine after ingestion of green tea with gas chromatography/mass spectrometry, liquid chromatography/mass spectrometry and 1H NMR spectroscopy WS Law, PY Huang, ES Ong, CN Ong, SFY Li, KK Pasikanti, ECY Chan Rapid Communications in Mass Spectrometry: An International Journal Devoted …, 2008 | 71 | 2008 |
