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Health Sciences Authority

Publications and Presentations

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2014

  • “Synthesis of γ-Hydroxybutyric Acid Sodium Salt (NaGHB) From Health-Supplements Containing γ-Aminobutyric Acid (GABA).” Pang Shih Yun, Siva Balan S/O Nadan, Chan Kee Bian, Wendy Lim Jong Lee, Dr Ong Mei Ching, Dr Romelo Bandian Gibe, and Dr Angeline Yap Tiong Whei. Journal Clandestine Laboratory Investigating Chemists Association, Vol 24 (1), 2014, p 3-10.
  • "Fast Analysis of Heroin using UHPLC." Poster presentation at the American Academy of Forensic Sciences 66th Annual Scientific Meeting, Seattle, USA, 17-22 Feb 2014.

2013

  • “Introduction of legislation for the control of new psychoactive substances in Singapore.” Dr. Ong Mei Ching, Ms. Wendy Lim Jong Lee and Dr. Angeline Yap Tiong Wei. ForensicAsia Newsletter, 5, 2013, p 4-5.
  • “Detection of New Psychoactive Substances by LC-MS/MS Method.” Romelo Bandian Gibe, Jessica, Yeo Yuan Yuan Cheryl, Ong Mei Ching, Ho Kian Lin, Lim Jong Lee Wendy and Yap Tiong Whei Angeline. Oral presentation at the 5th Asian Forensic Sciences Network, Singapore, 11-14 Nov 2013.

2012

  • “Development of extraction method for the simultaneous determination of codeine and diamorphine in cough mixture via HPLC & LCMS.” S.H-J Lim, YY Tan, MC Ong, Peiting Zeng, A.T-W. Yap, Sharon Kwa, Rubiah Nogiry and Azizah Atan. Oral presentation at the 4th Asia Forensic Science Network Annual Meeting & Symposium, Bangkok, Thailand, 25-27 Nov 2012.
  • "Fast LC Methods for Drug Analysis." H.B. Koh, G.J.Wee, J.Y.S. Lim and A.T.W.Yap. Poster presentation at the 21st International Symposium on the Forensic Sciences, Tasmania, Australia, 23-27 Sep 2012.
  • “Detection of Emerging Legal Highs and Common Drugs of Abuse in Drug Seizures by Fast LC-MS/MS Method.” Lim Kheng Aik, Ong Mei Ching, Jessica, Zeng Peiting, Yu Lijie, Yeo Yuan Yuan Cheryl and Yap Tiong Whei Angeline. Poster presentation at the 19th International Mass Spectrometry Conference, Kyoto, Japan, 15-21 Sep 2012.

2011

  • “Trend of Drug Abuse in Singapore.” H.Z. Ong, Y.P. Tan Stephenie, J. L. M and A.T.W. Yap. Poster presentation at the 2nd International Forensic Science Symposium, Kuala Lumpur, Malaysia, 14-16 Nov 11.
  • “IRMS Analysis of Cannabis Seizures in Singapore.” M. S. Woo, Y. K. Lee, Y. Y. Tan and A. T. W. Yap. Poster presentation at the 19th International Association of Forensic Sciences, IAFS 2011, Madeira, Portugal, 12-17 Sep 2011.
  • “Microwave-assisted Derivatization of Methamphetamine.” S. Tan, C. Y-L. Hu and A.T-W. Yap. 3rd Asian Forensic Sciences Network Annual Meeting and Symposium, Seoul, Korea, 25-27 May 2011.
  • “Validation of HPLC method for the quantitative determination of cannabinoids and profiling of cannabis samples.” Stephanie H.J Lim, Swee Yong Lim and Angeline T.W.Yap. Poster presentation at the 63rd Annual Scientific Meeting, American Academy of Forensic Science, Chicago IL, 21-26 Feb 2011.
  • “Legal Highs in Ecstasy Tablets.” Wendy Lim J L and A.T.W. Yap. 3rd Issue of Forensic Asia, AFSN Newsletter, 2011.

2010

  • “Stability of Diamorphine in Heroin “Street” Samples over Time.” Y. K. Lee, H. Panayiotou and A. T. W. Yap. Poster presentation at the 20th International Symposium on the Forensic Sciences, ANZFSS 2010, Sydney, Australia, 4-9 Sep 2010.
  • “Stability of Cannabinoids in Cannabis and its Extracts Over Time.” N.C.G. Phua, S. Cai, S.H.J. Lim and A.T.W. Yap. Poster presentation at the 20th International Symposium on the Forensic Sciences of the ANZFSS, Sydney, Australia, Sep 4-9 2010.
  • “Importance of Forensic Drug Data Analysis.” A.T.W. Yap. Oral presentation at the UNODC Global SMART Programme, Bangkok, Thailand, 4-6 Aug 2010.
  • “Analysis of GHB and its Analogs.” Wendy Lim, L. Yu, Y. Y. Tan, Jamie L. L. Tan and A. T-W.YAP. Oral presentation at the AFSN 2nd Annual Meeting and Symposium, Brunei, 1-3 Jun 2010.

2009

  • “Synthesis of Ketamine via a Hydroxylimine Intermediate.” L.Yu, T-L. Teo, S.H-J Lim and A.T-W. Yap. Poster presentation at the 5th European Academy of Forensic Science Meeting, Glasgow, United Kingdom, 8-11 Sep 2009.
  • “Quantitation of Ketamine and Amphetamine-type Substances using Rapid Resolution Liquid Chromatography.” L. Yu, J. Wong, H.W. Yang, L.P. Koh and A T-W. Yap. Poster presentation at the Separation Science Conference, Singapore, 26-28 Aug 2009.
  • “Analysis time reduction achieved by using column of reduced film thickness for the specific identification and separation of illicit drugs.” C.W. Lim, H. Panayiotou, K. L. Ho and A T-W Yap. Poster presentation at the Separation Science Conference, Singapore, 26-28 Aug 2009.
  • “Microwave Synthesis of Ketamine – via a hydroxylimine intermediate.” L. Yu, S.H-J. Lim and A. T-W. Yap. Oral presentation at the International Symposium of Forensic Science & Environmental Health, Kuala Lumpur, Malaysia, 2009.
  • “Investigation of the Different Sample Preparation for “Ecstasy” Tablets.” H. Panayiotou, M. Mangudi, Y. Y. Tan, H. T. Ong and A. T-W. Yap. International Symposium of Forensic Science & Environmental Health, Kuala Lumpur, Malaysia, 2009.