Analysis of Food Contact Paper by Hydrolysis and <sup>19</sup> F-NMR
F NMR were used to examine the fluorine content in FCP coated with polymers containing 6:2 FTOH. Hydrolysis facilitated the analysis of the 6:2 FTOH by releasing it from the polymer FCS. Solid-state NMR offered information regarding fluorine content before and after hydrolysis that when combined with the liquid-state analysis allows the assessment of the reaction. Deuterated sodium hydroxide at a 1 M concentration was sufficient to release most of the FTOH from the majority of the FCP samples. The hydrolysis protocol combined with liquid- and solid-state NMR proved to be an efficient tool to comprehensively examine the fluorine content present in FCS and will be useful as the market surveillance continues past the phase-out period.
Authors
- Jennifer Janovick (ORCID: https://orcid.org/0009-0002-6038-7502)
- Peter F. Scholl (ORCID: https://orcid.org/0000-0002-8870-3266)
- Luke K. Ackerman (ORCID: https://orcid.org/0000-0001-6626-3039)
- Clark D. Ridge (ORCID: https://orcid.org/0000-0002-0718-2543)
- Katherine S. Carlos
- Fu Chen
Institutions
- Center for Food Safety and Applied Nutrition (US)
- United States Food and Drug Administration (US)
- Office of the Assistant Secretary for Health (US)
- University of Maryland, College Park (US)
Publication Details
- Journal
- Analytical Chemistry
- Published
- 2026-04-27
- DOI
- https://doi.org/10.1021/acs.analchem.5c06069
- Primary Topic
- Isotope Analysis in Ecology
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Center for Food Safety and Applied Nutrition