About the Authors

Jeffrey A. DeGrasse

jeffrey.degrasse@fda.hhs.gov

Affiliation Spectroscopy and Mass Spectrometry Branch, Division of Analytical Chemistry, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, Maryland, United States of America

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JD. Performed the experiments: JD. Analyzed the data: JD. Contributed reagents/materials/analysis tools: JD. Wrote the paper: JD.