Josh Godshaw
Joshua Godshaw
Analyst
Polymer Science & Materials Chemistry
Menlo Park

Mr. Godshaw is an analytical chemist who uses chromatography and mass spectrometry methods to identify and quantify additives and contaminants, as well as extractable/leachable compounds, in consumer electronics, medical devices, wearables, adhesives, coatings, and commercial plastics. He is proficient in advanced sample preparation (SPE, filtration, microwave digestion), quantitation, and instrumental techniques used in elemental analysis (ICP-MS), elemental speciation (HPLC-ICP-MS, GC-ICP-MS), and volatile and semi-volatile compounds (VOCs and SVOCs) (UHPLC-ESI-QTOF-MS, GC-MS) and has previous experience using these techniques for compositional analysis of clinical, environmental, food and beverage, and consumer product matrices.

Most recently, Mr. Godshaw used profiling methods to distinguish among different grapes, juices, and wines at UC-Davis. His research included the expansion and application of an in-house database and library of non-volatile precursors to aroma-active compounds to understand changes that occur during the winemaking process. Prior to his work at UC-Davis, Mr. Godshaw spent three years as a speciation laboratory fellow in a clinical inorganic toxicology laboratory within the National Center for Environmental Health (NCEH) at the Centers for Disease Control and Prevention (CDC) in Atlanta, GA. Here, he contributed arsenic and mercury speciation data to several biomonitoring projects including the National Health And Nutrition Examination Survey (NHANES). He used HPLC-ICP-DRC-MS to study arsenic species in urine and species specific isotope dilution with SPME-HS-GC-ICP-MS for monitoring inorganic, methyl, and ethyl mercury species in blood samples. Mr. Godshaw was involved in method validation, instrumental platform comparisons, and sample integrity experiments associated with these CLIA-certified methods.

In addition to HPLC, GC, ICP-MS, and ESI-QTOF-MS, Mr. Godshaw is familiar with UV-VIS spectroscopy, NMR, organic synthesis, and basic microbiological safety testing. He worked as a quality assurance technician at a specialty ingredients manufacturer, World Technology Ingredients, Inc., prior to his role at the CDC and is well-versed in good manufacturing practices (cGMP) and safety plans of food processing operations.

CREDENTIALS & PROFESSIONAL HONORS

  • M.S., Agricultural and Environmental Chemistry, University of California, Davis, 2017
  • B.S., Chemistry, University of Georgia, 2012
  • Adolf L. & Richie C. Heck Research Fellow, 2016-2017

    Mario P. Tribuno Memorial Research Fellow, 2016-2017

    Victor Chu Agricultural and Environmental Chemistry Fellow, 2015

Publications

Godshaw, J.; Hopfer, H.; Nelson, J.; Ebeler, S.E. Comparison of Dilution, Filtration, and Microwave Digestion Sample Pretreatments in Elemental Profiling of Wine by ICP-MS. Molecules 2017, 22, 1609.

Presentations


Godshaw J, Hjelmeland AK, Zweigenbaum J, Ebeler SE. Changes in Monoterpene glycosylation patterns in Vitis vinifera during grape berry maturation. Poster presentation, 253rd ACS National Meeting, San Francisco, CA, 2017.

Godshaw J, Hopfer H, Nelson J, Ebeler SE. Evaluation of sample preparation methods for elemental profiling of wine by ICP-MS: comparison of direct dilution, microwave digestion, and filtration. Poster presentation, European Winter Conference on Plasma Spectrochemistry 2017, Sankt Anton, Austria, 2017.

Godshaw J, Sommer YL, Wood EB, Ward, CD, Caldwell KL, and Jones RL. Long term stability of three mercury species in human whole blood at five different temperature conditions. Poster presentation, 2014 Winter Conference on Plasma Spectrochemistry, Amelia Island, FL, 2014.

Prior Experience

Graduate Student Researcher, University of California, Davis, 2015-2017

Teaching Assistant, Department of Environmental Toxicology, University of California, Davis, Winter 2017

Teaching Assistant, Department of Chemistry, University of California, Davis, Winter 2016

ORISE Speciation Laboratory Fellow, CDC / NCEH / DLS / IRAT, 2012-2015

Quality Assurance Technician, World Technology Ingredients Inc. (WTI inc.), 2012

Professional Affiliations

American Chemical Society (member)

CREDENTIALS & PROFESSIONAL HONORS

  • M.S., Agricultural and Environmental Chemistry, University of California, Davis, 2017
  • B.S., Chemistry, University of Georgia, 2012
  • Adolf L. & Richie C. Heck Research Fellow, 2016-2017

    Mario P. Tribuno Memorial Research Fellow, 2016-2017

    Victor Chu Agricultural and Environmental Chemistry Fellow, 2015