Summary
A method-validation paper also reports a real-sample application. The infant-formula PFBS concentration is retained from that application.
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 |
|---|---|---|---|---|---|
| PFBS | 57 | ng kg−1 | Pooled infant formula; reported PFBS occurrence | PDF p.12 section 3.3; limit p.4 Table 1 | Table 1 L-PFBS LOQ 5 ng kg−1; CCα 30 and CCβ 50 ng kg−1. No LOD is substituted from decision limits. |
Evidence Fitness
Methods (brief)
Simplified QuEChERS without dispersive SPE; UHPLC-MS/MS negative ESI triple-quadrupole time-managed MRM (PDF p.13 sections 4.2.3 and 4.3).
Targets as printed or genericized: L-PFBS; PFBA; PFDA; PFDoA; PFDS; PFHpA; PFHxA; PFHxS; PFNA; PFOA; PFOS; PFPeA; PFTeDA; PFTrDA; PFuDA (PDF p.4 Table 1; names p.12).
Limitations
Per-sample occurrence Table S3 is absent; the body supports only limited formula-specific extraction. Mass basis is printed ng kg−1, with no ready-to-feed or dry-basis conversion inferred. Breastmilk reference-material results are not infant-formula findings. No conversions, risk thresholds, representativeness claims, or safety conclusions are added.
Provenance notes
Local staged PDF copied unchanged. DOI checked in deposited PDF against MANIFEST; no external resolution attempted. Title and citation metadata checked against the PDF first page.
See the cell MISMATCHES.csv for unresolved discrepancies. The legacy MANIFEST analyte field is discovery metadata, not an audited target list.