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Siheng Li, Ph.D.
Email: Phone:
Covance Laboratories Inc., 3301 Kinsman Blvd., Madison, WI-53704
LinkedIn:
WORK EXPERIENCE
Jan. 2017 – present Staff Scientist, Covance Laboratories Inc. (Madison, WI)
Covance Food Solutions
Method development and validation for food contaminants analysis (BPA,
Nonylphenol, Veterinary drugs).
Jun. 2012 – Jan.2017 Manager, Mass Spectrometry Laboratory, University of Houston
(Houston, TX)
Manage the operation of the Mass Spectrometry Laboratory; Train
researchers in mass spectrometry/chromatography instrumentation;
Develop methods for diverse types of samples for MS-based analysis.
Collaborate on complex research projects using advanced mass
spectrometry and chromatography instrumentation. Perform maintenance
and troubleshooting mass spectrometry/chromatography instrumentation.
EDUCATION
2015 University of Houston (Houston, TX)
Ph.D., Chemistry
Research Advisor: Professor Chengzhi Cai
Thesis: Bioconjugation using copper-catalyzed azide-alkyne cycloaddition reaction.
2010 South China University of Technology (Guangzhou, China)
B.S., Material Science and Engineering
RESEARCH PROJECTS
Method development and validation – Determination of bisphenol-A (BPA) in commercially
packaged beverages and infant formulas
Developed a novel LC-MS/MS based method to determine BPA concentration in various
food matrices. Validated the method in ten types of on ten most-widely consumed
commercially packaged non-alcoholic beverages, infant formula products and food
simulating solvents with satisfactory accuracy and precision.
Method development and validation – Determination of nonylphenol in infant formula
ingredients and products
Developed a simple and robust sample extraction approach applicable for nonylphenol
isomers quantitative analysis in various food matrices. Validated the method in infant
formula products, milk powders, food oils and sugars with satisfactory accuracy and
precision.
Method development and validation – Determination of trimethylamine N-oxide (TMAO) in
krill oil feeds and products
Established a high through-put infusion nano-ESI-MS analysis method to determine the
concentration of TMAO in krill oil feeds and products. The validation meet the method
performance requirements.
Bioconjugation using copper-catalyzed azide-alkyne cycloaddition reaction