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.
| analyte | value | unit | basis | source location | limits and qualifiers |
|---|---|---|---|---|---|
| PFOA | 1.71 | ng/100 cm² | P1 paper packaging; RSD 2.71%; n=3 | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
| PFOA | 0.40 | ng/100 cm² | P2 paper packaging; RSD 10.0%; n=3 | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
| PFOA | 0.36 | ng/100 cm² | P3 paper packaging; RSD 15.7%; n=3 | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
| PFOA | 0.57 | ng/100 cm² | P4 paper packaging; RSD 4.03%; n=3 | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
| PFOA | 0.58 | ng/100 cm² | P5 paper packaging; RSD 14.6%; n=2 (starred) | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
| PFOA | 0.41 | ng/100 cm² | P6 paper packaging; RSD 14.8%; n=3 | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
| PFOA | 0.48 | ng/100 cm² | P7 paper packaging; RSD 0.00%; n=3 | PDF p.7, Table 4, PFOA row | PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim. |
Evidence Fitness
primary_measurement. Table 4 parenthetical numbers are RSD percentages, not SD. Starred entries use a different replicate count. Abstract describes an across-sample sum as a highest amount; conflict logged.
Methods (brief)
LC-MS with MRM transitions in Tables 1-3 (PDF pp.4-6); Table 4 reports concentrations per area. Target list PFBA, PFPeA, PFBS, PFHxA, PFHpA, PFOA, PFHxS, PFNA, PF-3,7-DMOA, PFDA, PFOS, PFUnA, PFDS, PFTriA, PFTA.
Analytes or measurement scopes: PFBA, PFPeA, PFBS, PFHxA, PFHpA, PFOA, PFHxS, PFNA, PF-3,7-DMOA, PFDA, PFOS, PFUnA, PFDS, PFTriA, PFTA. Target identities are not inferred from the manifest acronym scan.
Limitations
PFOA LOD 0.01 and LOQ 0.02 ng/mL; PFOS LOD 0.05 and LOQ 0.15 ng/mL (Table 3, PDF p.6). These solution limits are not converted into package area limits. Dashes retained verbatim.
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: Elyson Keith Ponce Encarnacion; Anne Cardoza Alcantara; Harold Esplana Armario; Winnie Pagaduan Alejandro; Zhaoqi Zhan; Zhe Sun; Ng Lin (2024). Preliminary Screening of Per- and Polyfluoroalkyl Substances (PFAS) in Philippine Fast Food Packaging using Liquid Chromatography-Mass Spectrometry (LC-MS). Current Research in Nutrition and Food Science. Bibliographic identity checked against the deposited title page. Manifest DOI: https://doi.org/10.12944/crnfsj.12.1.34. Printed DOI: 10.12944/CRNFSJ.12.1.34.
Local input: encarnacion-2024-preliminary-screening-of-per-and-polyfluoroalkyl.pdf. SHA256: 3f04a23b50763e7974bf461b4a5cb1ad9251726e9306ef9ec4f273f76349e250. Byte-identical PDF copy: raw/fci-ingest-1/food-packaging-paperboard-cartons/encarnacion-2024-preliminary-screening-of-per-and-polyfluoroalkyl.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.