Summary
Key numbers
Source-reported values checked against the cited page of the filed PDF. Values are reported as printed, without conversion. These are selected records, not an exhaustive transcription.
No values from this source are published. It is filed as method or context evidence.
3 further transcribed values remain under review and are not shown.
Evidence Fitness
primary_measurement. Abstract and body concentration ranges disagree. Individual supplement results are unavailable; selected body ranges are not attributed to an individual chemical.
Methods (brief)
GC-MS using DMFDMA or PFBBr derivatization; DMFDMA chosen for real materials (PDF pp.3-11). PFCA, FTOH and FTCA target classes.
Analytes or measurement scopes: PFCAs, FTOHs, FTCAs, PFDA, 8:2 FTCA. Target identities are not inferred from the manifest acronym scan.
Limitations
DMFDMA PFCA LOD range 0.85-5.41 ng/mL (PDF p.7). FTOH not detected in analyzed materials; recovery differs by matrix (PDF p.12).
Selected rows are a bounded extraction, not a complete transcription of every table. Supplied main articles are the evidence boundary; unstaged supplements were not retrieved. Aggregate fluorine, targeted PFAS, migration, material content, detection frequency and modeled exposure remain distinct. All findings remain HOLD pending Elon verification.
Provenance notes
Citation: Charlotte Hauschildt; Christian Jung; Hajo Haase; Roland Becker (2026). Comparative evaluation of pre-column derivatization strategies for PFAS analysis in paper-based food contact material using GC-MS. Analytical and Bioanalytical Chemistry. Bibliographic identity checked against the deposited title page. Manifest DOI: https://doi.org/10.1007/s00216-026-06683-z. Printed DOI: 10.1007/s00216-026-06683-z.
Local input: hauschildt-2026-comparative-evaluation-of-pre-column-derivatization.pdf. SHA256: 5ed1aebbdb3142fc899d6400135ae319b4bc8a52b519c0a52749dab5d55365a6. Byte-identical PDF copy: raw/fci-ingest-1/food-packaging-paperboard-cartons/hauschildt-2026-comparative-evaluation-of-pre-column-derivatization.pdf. Access and license text from the manifest are preserved in the raw intake control, without claiming independent external verification. No external retrieval was performed.
See reports/fci-ingest-1/food-packaging-paperboard-cartons/MISMATCHES.csv for unresolved source conflicts. Public findings are intentionally empty; held_findings and this table are private review evidence.