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Health Sciences Authority

Publications and Presentations

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2017

  • “Mycotoxins Detection in Asia”, Chee Wei Lim, Angela Li, Joanne Sheot Harn Chan, Analysis of Food Toxins and Toxicants, Volume 1, 2017, pp. 169-193.
  • "Improving wastewater-based epidemiology to estimate cannabis use by focus on the initial aspects of the analytical procedure".  Analytica Chimica Acta, 988 : 27-33.

 

2016

  • "Recent Developments in Combating Food Fraud in Singapore".  Angela Li, Chan Sheot Harn.  Oral presentation at International Symposium and Exhibition on Food Fraud Research, Seoul, South Korea,  09 Sep 2016.
  • "Ensuring Food Safety by Maintaining Quality".  Gerald Chung, Chan Sheot Harn.  Oral presentation at THAIFEX – World of Food Asia, Bangkok, Thailand, 27 May 2016.
  • "Determination of Bisphenol A Digylcidyl Ether (BADGE), Bisphenol F Digylcidyl Ether (BFDGE) and their derivatives in Canned Fruits and Vegetables by Liquid Chromatography Tandem".  Ang Wei Min, Chan Sheot Harn.  Poster presentation at 130th AOAC International Annual Meeting And Exposition, Dallas, USA, 18-21 Sep 2016.
  • “Screening of Pyrrolizidine Alkaloids in Asian Herbal Teas”.  Wellyana, Chan Sheot Harn.  Poster presentation at World Mycotoxin Forum and World Plant Toxin Forum Winnipeg, Canada, 2016, 06-08 Jun 2016.

 

2015

  • "Multi-mycotoxin screening reveals separate occurrence of alfaltoxins and ochratoxin A in Asian rice." Lim Chee Wei, Tomoya Yoshinari, Jeff Layne and Chan Sheot Harn.  Journal of Agricultural and Food Chemistry. 63(12): 3104-13.
  • "Food Authenticity from the Asian Perspective".  Angela Li, Chan Sheot Harn.  Oral presentation at Food Science Asia, Singapore, 27 Oct 2015.
  • "Food Contact Materials: trouble, testing and trends".  Gerald Chung, Chan Sheot Harn.  Oral presentation at Food Science Asia, Singapore, 27 Oct 2015.
  • "Raising The Bar on Food Safety through Mass Spectrometry".  Ang Wei Min, Chan Sheot Harn.  Oral presentation at Food Safety Asia & Central Kitchen Asia 2015 Conference, Singapore, 02 Sep 2015.
  • "LC-LIT-MS and LC-Q-TOF as primary tools for accurate determination of moniliformin in cereals, vial alternative precipitation pathways".  Lim Chee Wei, Lai Kit Yee, Yeo Jie Fang, Tai Siew Hoon, Chan  Sheot Harn.  Oral presentation at 13th Fusarium symposium, Martina Franca, Italy, 10 - 14 May 2015.
  • "Early Warning Mechanism, Monitoring and Detection of Unexpected Illegal Additives in Foods".  Yat Yun Wei, Chan Sheot Harn.  Oral presentation at APEC Conference of Management and Related Scientific Detection of Food Additives in Food, Taiwan, 29-30 Apr 2015. 
  • "Determination of the migration of sulphonated residues from polysulphone baby bottles used as substitutes for polycarbonate".  Wellyana, Chan Sheot Harn.  Poster presentation at 7th International Symposium on Recent Advances in Food Analysis (RAFA), Prague, Czech Republic, 3-6 Nov 2015.
  • "Multistage mass fragmentation reaction eliminates matrix effects for Phomopsin A in lupin flour assay development?".  Peh Huizhu, Lim Chee Wei, Chan Sheot Harn.  Poster presentation at Mass Spectrometry 2015, Singapore, 28-29 Oct 2015.
  • "Method Comparison between GC-FID and GC-MS for the Determination of Ethylene Glycol in water and beverages".  Wellyana, Chan Sheot Harn.  Poster presentation at Mass Spectrometry 2015, Singapore, 28-29 Oct 2015.
  • "Survey of Rongalite (as Formaldehyde) in flour based foods by HPLC".  Yeo Jie Fang, Wellyana, Chan Sheot Harn.  Poster presentation at Food Science Asia, Singapore, 27 Oct 2015.

 

2014

  • “Evaluation of triple stage mass spectrometry as a robust and accurate diagnostic tool for determination of free cordycepin in designer egg.” Chen YiHsin, Lim Chee Wei, Chan Sheot Harn. Food Chemistry .150:213-219
  • “Speciation and determination of inorganic arsenic in rice using liquid chromatography-inductively coupled plasma/mass spectrometry: Collaborative study.” Takanori Ukena, Eri Matsumoto, Tsutomu Nishimura, Joanne Chan Sheot Harn, Ch'ng Ai Lee, Laddawan Rojanapantip, Nongnuch Mayteeyonpiriya, Kulwilai Suthilucksanavanish, Yukiko Yamada. Collaborators: W.M. Ang; K. Baba; P. Chew; F. Daigo; S. Fagnoi; M. Hoshino; T. Inaba; T. Ito; Y. Ito; T. Kato; N. Kraisin; M.L. Kuen; K. Meeglin; T. Morita; M. Nagao; T. Narukawa; K. Saito; N. Saito; Syamsudin; S. Sinaviwat; M. Sugie; S. Tharatha; T.B. Ting; H. Tsujimoto; M. Uraroongroj; K. Yamashita; C.H. Yan; T. Yoshida; K. Yoshimura; S. Zama. Journal of AOAC International, Vol .97, No. 3, 2014
  • “Determination of Ochratoxin A in Capsicum spp. (Paprika and Chili) by Immunoaffinity Column Cleanup and Liquid Chromatography: Collaborative Study” Zoltan Kunsagi and Joerg Stroka. Collaborators: E. Abilleira; P. Bastijns; M. Berger; G. Cepurnieks; S.J. Coluccia; J. Griffin; M-P. Herry; J.R. Keegan; P. Kormali; C.W. Lim; S. MacDonald; G. Muranszky; K. Nuotio; J. Postupolski; A. Solyakov; S. Staiger; M. Toome; E. Toth; J. Vancutsem; C. Veitch; C. Yustes. Journal of AOAC International, Vol .97, No. 3, 2014
  •  “Triple stage mass spectrometry as the go-to physico-chemical too for the accurate assessment of multi-mycotoxins in processed chilli of Asian origin.” Khiu Ke Wei, Lim Chee Wei, Chan Sheot Harn. World Mycotoxin Journal.
  • “Mass Spectrometry as food safety tool”. Lim Chee Wei, Chan Sheot Harn. Oral presentation at International Mycotoxin Conference, Beijing, China, 19-23 May 2014.
  • “Promoting food safety as the ASEAN reference laboratory on Mycotoxin testing”. Gerald Chung, Chan Sheot Harn. Oral presentation at Food & Hotel Asia (FHA) International Conference 2014, Singapore, 08-11 Apr 2014.

 

2013

  • “Single laboratory method validation comparing MS3 and FI/MS fingerprinting, and quantitation strateges for the accurate determination of ochratoxins in beer.” Lim Chee Wei, Chan Sheot Harn.  World Mycotoxin Journal.  6: 281-290
  • “High sensitivity analysis of nitrosamines using GG-MS/MS.” Alex Chen, Hans-Joachim Hübschmann, Li Fangyan, Chew Yai Foong, Chan Sheot Harn. Thermo scientific Application Note 10315
  • “Analysing models for identification, prevention and control of mycotoxins risk in food and feed.” Chan Sheot Harn. Oral presentation at  World of Food Safety Conference, Bangkok, Thailand, 22-23 May 2013
  • “Role of a Scientific Officer with the ASEAN reference laboratory for mycotoxin testing. “ Lim Chee Wei, Chan Sheot Harn. Oral presentation at Seminar at University of Münster. Münster , Germany,16-18 Jul 2013
  • “Linear ion trap and flow injection mass spectrometry.”  Lim Chee Wei, Chan Sheot Harn. Oral presentation at Seminar at University of Münster. Münster , Germany, 16-18 Jul 2013
  • “Gaining direct access to sub-ppb targeted mycotoxin analyses through MS3: A case study involving the accurate determination of aflatoxins and ochratoxin A in processed spices.” Lim Chee Wei, Chan Sheot Harn. Oral presentation at ISM-Mycored  International Conference  Europe 2013, Martina Franca, 27-31 May 2013
  • “Determination of polycyclic aromatic hydrocarbons in food using pressurized liquid extraction and molecularly imprinted solid phase extraction coupled with gas chromatography tandem mass spectrometry.” Li Fangyan, Chew Yan Foong, Chan Sheot Harn. Oral presentation at 2nd Middle Eastern and Mediterranean Sea Region Countries Mass Spectrometry Workshop 2013, Sienna, Italy, 30 Jun - 4 Jul 2013
  • “Authenticity of vinegar by Gas Chromatography - Isotope Ratio Mass Spectrometry (GC-C-IRMS) - A survey of vinegars in the Singapore market”. Yat Yun Wei, Lee Lin Min, Chan Sheot Harn. Poster presentation at 6th International Symposium on Recent Advances in Food Analysis (RAFA), Prague, Czech Republic, 5-8 Nov 2013
  • “Trace analysis of nitrosamines in beer using GC-MS/MS. 6th International Symposium on Recent Advances in Food Analysis”. Alex Chen, Hans-Joachim Hübschmann, Chan Sheot Harn, Li Fangyan, Chew Yai Foong, Michal Godula and Paul Silcock. Poster presentation at 6th International Symposium on Recent Advances in Food Analysis (RAFA), Prague, Czech Republic, 5-8 Nov 2013
  • “A survey of the multi-elemental content of edible mushrooms using ICP-MS in the Singapore retail market”. Gerald Chung, Tan Buay Ting, Lee Huey Yie, Chan Sheot Harn. Poster presentation at Eurofoodchem XVII. Istanbul, Turkey, 7-10 May 2013.
  • “Determination of six volatile N-nitrosamine in meat products by GC-MS/MS”. Low Wei Ping, Chew Yai Foong,Chan Sheot Harn. Poster presentation at 13th Asean Food Conference, Singapore, 9-11 Sep 2013
  • “Simultaneous determination of Chromium(III) and Chromium(VI) in bottled water by hyphenated HPLC-ICP-MS technique”. Chee Ghee Seng, Ang Wei Min, Chan Sheot Harn. Poster presentation at 13th  ASEAN Food Conference, Singapore, 9-11 Sep 2013
  • “Comparison study between Microwave Digestor and UltraWAVE digestion of Cocoa Powder before simultaneous analysis of heavy metals (Pb, As, Cd) in cocoa powder by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)”. Ang Wei Min, Ng Wei Hong, Chan Sheot Harn Poster presentation at Mass Spectrometry 2013, Singapore, 6-7 Mar 2013
  • “Simultaneous Determination and Differentiation of 3-monochloroproan-1,2-diol (3-MCPD ester) and Glycidyl esters (3-MPD esters) by GCMSMS”. Chew Yai Foong, Li Fang Yan, Chan Sheot Harn. Poster presentation at Mass Spectrometry 2013, Singapore, 6-7 Mar 2013
  • “Method development for trace level detection of N-nitrosamines in beer by GC-MS/MS”. Lai Chin Loo, Cynthia Melanie Lahey, Shao Hua Chia,Fang Yan Li, Yai Fong Chew, Gee Siang Ling, Sheot Harn Chan, S.F.Y.Li. Poster presentation at American Society for Mass Spectrometry Annual Conference (ASMS) 2013,Minneapolis, USA, 9-13 Jun 2013
  • “Mercury Speciation in Asian Dried Seafood by LC-ICP-MS”. Ang Wei Min, Tan Buay Ting, Chan Sheot Harn. Poster presentation at 44th IUPAC World Chemistry Congress. Istanbul, Turkey, 11-16 Aug 2013
  • “Determination of Pyrrolizidine Alkaloids (PA) in Honey using Liquid Chromatography with Tandem Mass Spectrometry detection method”. Angela Li, Lai Kit Yee,Lee Lin Min, Chan Sheot Harn. Poster presentation at Euroanalysis XVII, Warsaw, Poland, 25-29 Aug 2013
  • Determination of Selected Illicit Drugs and Metabolites in Wastewater by LC-MS/MS. See Phek Hah, Angela Li, Chan Sheot Harn. Poster presentation at 5th Asian Forensic Science Network Annual Meeting & Symposium, Singapore, 11-14 Nov 2013

 2012

  • “A flow-injection mass spectrometry fingerprinting scaffold for feature selection and quantitation of Cordyceps and Ganoderma extracts in beverage: a predictive artificial neural network modelling strategy”. Lim Chee Wei, Tai Siew Hoon, Chan Sheot Harn. AMB Express 2 (2012):43
  • “Analytical method for the accurate determination of tricothecenes in grains using LC-MS/MS: a comparison between MRM transition and MS3 quantitation”. Lim Chee Wei, Tai Siew Hoon, Chan Sheot Harn. Analytical and Bioanalytical Chemistry 403 (2012):2801-2806
  • “Prospective analytical tools for the accurate determination of ochratoxins in beer”. Lim Chee Wei, Chan Sheot Harn.  Poster presentation at WMFmeetsIUPAC 2012, Rotterdam, the Netherland, 5-9 Nov 2012
  • “Application of the Hyphenated System, LC-ICP-MS to Perform Arsenic Speciation Analysis in Rice”. Chan Sheot Harn, Oral presentation at Separation Science 2012, Kuala Lumpur, Malaysia, 27-28 Jun 2012
  • “Food safety through provenancing of the food that we eat”. Angela Li, Chan Sheot Harn. Oral presentation at Separation Science 2012, Kuala Lumpur, Malaysia, 27-28 Jun 2012
  • “Analytical techniques in Food Authentication”. Yat Yun Wei, Chan Sheot Harn. Oral presentation at 6th Asian Conference on Food Nutrition and Safety, Singapore, 26-28 Nov 2012
  • “Determination of 3-chloropropane-1,2-diol fatty acid easters in oil by gas chromatography tandem mass spectrometry”. Li Fangyan, Chan Sueli, Chew Yan Foong, Chan Sheot Harn. Poster presentation at 29th International Symposium on Chromatography, Torun, Poland, 9-13 Sep 2012
  • “Screening of "Weight Loss" Beverages for Sibutramine and its analogues by LC/MS/MS”. Wellyana, Lee Lin Min, Lai Kit Yee, Linda Liang, Toh Hwee Khim, Chan Sheot Harn. Poster presentation at 6th Asian Conference on Food Nutrition and Safety, Singapore, 26-28 Nov 2012
  • “Differentiation of wild and farmed seafish using isotopic signatures”. Bay Lian Jie, Jaime Wong, Joanne Chan Sheot Harn, Daniel Fliegel, Thomas Walczyk. Poster presentation at 19th International Mass Spectrometry Conference, Kyoto, Japan, 15-21 Sep 2012

2011

  • “Feed-forward neural network assisted by discriminant analysis for the spectroscopic discrimination of cracked spores Ganoderma lucidum: A prospective biotechnology production tool”. Lim Chee Wei, Chan Sheot Harn, Angelo Visconti. AMB Express 1 (2011):40
  • “A novel approach to discriminate between Nostoc flagelliforme and its counterfeits”. Angela Li, Yat Yun Wei, Yap Wee Kim, Lim Chee Wei, Chan Sheot Harn. Food Chemistry 129 (2011) 528-532
  • “Achieving high sensitivity in analysing tricothecenes in grains by applying LC-MS/MS technique- An MRM transition and MS3 approach”. Lim Chee Wei, Chan Sheot Harn. Oral presentation at Separation Science 2011, Singapore, 27-28 Jul 2011
  • “Recent development in chemical contaminants analysis in food”. Li Fangyan, Chan Sheot Harn. Oral presentation at Seminar on Emerging Food Safety Challenges. Bogor, Indonesia, 24 Nov 2011
  • “Analysis of Microcystins in Drinking and Surface Water using Lliquid Chromatography Tandem Mass Spectrometry with Direct Injection”. See Phek Hah, Lee Lin Min, Yat Yun Wei, Joanne Chan. Poster presentation at Separation Science 2011, Singapore, 27-28 Jul 2011
  • “Determination of Oleamide and Erucamide Migrating from the Gaskets of Lids into Foods packed in Glass Jars by LC-MS/MS”. Sun Cuilian, Chew Yan Foong, Chan Sheot Harn. Poster presentation at 4th International Congress on Food and Nutrition, Istanbul, Turkey, 12-14 Oct 2011
  • “Determination of the geographical origins of rice by stable isotopes and elemental compositions analysis”. Angela Li, Chan Sheot Harn, Brendan Keely, Malcolm Baxter, Simon Kelly. Poster presentation at 1st Food Integrity and Traceability Conference, Belfast, UK, 21-24 Mar 2011
  • “Authenticity of honey by Isotope Ratio Mass Spectrometry (IRMS) - A survey of honeys in the Singapore market”. Yat Yun Wei, Angela Li, Lee Lin Min, Chan Sheot Harn. Poster presentation at 3rd MoniQA International Conference, Varna, Bulgaria, 27-29 Sep 2011
  • “Determination of Anatoxin-a in spirulina by Liquid Chromatography Tandem Mass Spectrometry”. Li Fangyan, Lee Linmin, Chan Sheot Harn. Poster presentation at 5th  International Symposium on Recent Advances in Food Analysis (RAFA), Prague, Czech Republic, 1-4 Nov 2011
  • “Analytical method for the accurate determination of tricothecenes in grains using LC-MS/MS: a comparison between MRM transition and MS3 quantitation”. Lim Chee Wei, Chan Sheot Harn. Poster presentation at 5th  International Symposium on Recent Advances in Food Analysis (RAFA), Prague, Czech Republic, 1-4 Nov 2011

2010

  • “Mycotoxins control programme in ASEAN: The EU-ASEAN Reference Laboratory’s perspective”. Lim Chee Wei, Chan Sheot Harn. Oral presentation at International Mycotoxin Conference – MycoRed. Penang, Malaysia, 1-4 Dec 2010
  • “Sensitive determination of photoinitiators in printed packaged beverages by HPLC Tandem MS”. Sun Cuilian, Chan Sheot Harn. Oral presentation at Separation Science (SSMS), Singapore, 5-6 Aug 2010
  • “Simultaneous detection of multiple Aspergillus, Penicillium & Fusarium mycotoxins by a simple cleanup followed by LC/MS/MS”. Chan Sheot Harn. Oral presentation at Separation Science (SSMS), Singapore, 5-6 Aug 2010
  • “Analyzing emerging mycotoxins in cereal products by applying HPLC-FLD/DAD and LC-MS-MS”. Lim Chee Wei, Chan Sheot Harn. Poster presentation at The World Mycotoxin Forum- 6th  Conference, Noordwijkerhout, the Netherland, 8-10 Nov 2010
  • “A novel approach to discriminate between Nostoc flagelliforme and its counterfeits”. Angela Li, Yat Yun Wei, Yap Wee Kim, Chan Sheot Harn. Poster presentation at Conference on Setting Standards in Food Analysis. London, UK, 28-29 Apr 2010
  • “Migration of 2,4,7,9-Tetramethyldec-5-yne-4,7-diol from food adhesive labels by Liquid Chromatography with Tandem Mass Spectrometry”. Sun Cuilian, Gerald Chung, Shao Fay, Lai Kit Yee, Joanne Chan. Poster presentation at 27th  Montreux Symposium on LC/MS. Montreux, Switzerland, 10-12 Nov 2010
  • “Analysis of Acesulfame-K, Saccharin and Aspartame in food by Ultra Fast Liquid Chromatography with Photo Diode Array Detection (UFLC-PDA)”. Yat Yun Wei, Ang Lay Kheng, Chan Sheot Harn. Poster presentation at 16th International Symposium on Separation Science. Rome, Italy, 6-10 Sep 2010
  • “Mycotoxins content survey in Lingzhi and Lingzhi-related products by HPLC”. Gerald Chung, Yap Wee Kim, Chan Sheot Harn. Poster presentation at 124th AOAC Annual Meeting and Exposition. Florida, USA, 26-29 Sep 2010
  • “Migration of caprolactum and laurolactam from nylon packaging materials into meat”. Sun Cuilian, Chan Sheot Harn, Yap Wee Kim, Tan-Chew Kim Kee. Poster presentation at 124th AOAC Annual Meeting and Exposition. Florida, USA, 26-29 Sep 2010
  • “Direct analysis of thujone in alcoholic drinks with high alcohol content by Gas Chromatography Mass Spectrometry”. Li Fangyan,Lee Linmin, Chan Sheot Harn. Poster presentation at 124th AOAC Annual Meeting and Exposition. Florida, USA, 26-29 Sep 2010

2009

  • “Investigation of cocaine in beverage”. Gerald Chung, Lee Lin Min and Chan Sheot Harn. Oral presentation at International Symposium on Forensic Science and Environmental Health (ISFE), Kuala Lumpur, Malaysia,10 Nov 2009
  • “Determination of photoinitiators in packaged beverages by Solid-Phase Extraction Clean up and Liquid Chromatography with Tandem Mass Spectrometry detection”. Cuilian Sun, Chua Yong Guan Peter, Lai Peng Leong, Joanne Chan. Poster presentation at 18th  International Mass Spectrometry Conference. Bremen, Germany, 30 Aug – 4 Sep 2009
  • “Analysis of Auramine O in Food Products using Liquid Chromatography with Tandem Mass Spectrometry Detection Method”. Angela Li, Lai Kit Yee, Chan Sheot Harn. Poster presentation at Euroanalysis XV. Innsbruck, Austria, 6-10 Sep 2009
  • “Analysis of acrylonitrile in food by Headspace-Solid Phase Micro Extraction- Gas Chromatography Mass Spectrometry”. Yat Yun Wei, Chan Sheot Harn. Poster presentation at 123rd AOAC Annual Meeting and Exposition. Philadelphia, USA, 12-15 Sep 2009
  • “A survey of sugarcane juices for nitrotoxins content”. Gerald Chung, Wee Kim, Chan Sheot Harn. Poster presentation at Separation Science, Singapore, 26-28 Aug 2009
  • “Determination of Copper Chlorophyllins (E141[II]) in Food by Ultrafast Liquid Chromatography with Photodiode Array Detection”. Li Fangyan, Lee Pei Geok, Chan Sheot Harn. Poster presentation at 4th International Symposium on Recent Advances in Food Analysis (RAFA). Prague, Czech Republic, 4-6 Nov 2009