Summary
Raw and treated drinking-water samples have targeted PFAS, suspect screening and extractable organofluorine assays. EOF is an aggregate fluorine measure and is not interchangeable with any individual PFAS concentration.
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 |
|---|---|---|---|---|---|
| Total organic fluorine | 409 | ng of F/L | extractable organofluorine in treated water, D3; aggregate fluorine, not individual PFAS | PDF p4, Results and discussion, Extractable organofluorine analysis | EOF MDL printed 50 ng L−1 F−1; values reported at least twice MDL, PDF p4. Unit wording differs from ng of F/L in results, retained for review. |
| Total organic fluorine | 340 | ng of F/L | extractable organofluorine in treated water, D4; aggregate fluorine, not individual PFAS | PDF p4, Results and discussion, Extractable organofluorine analysis | EOF MDL printed 50 ng L−1 F−1; values reported at least twice MDL, PDF p4. Unit wording differs from ng of F/L in results, retained for review. |
| Total organic fluorine | 125 | ng of F/L | extractable organofluorine in treated water, D5; aggregate fluorine, not individual PFAS | PDF p4, Results and discussion, Extractable organofluorine analysis | EOF MDL printed 50 ng L−1 F−1; values reported at least twice MDL, PDF p4. Unit wording differs from ng of F/L in results, retained for review. |
| Total organic fluorine | 130 | ng of F/L | extractable organofluorine in treated water, D8; aggregate fluorine, not individual PFAS | PDF p4, Results and discussion, Extractable organofluorine analysis | EOF MDL printed 50 ng L−1 F−1; values reported at least twice MDL, PDF p4. Unit wording differs from ng of F/L in results, retained for review. |
Evidence Fitness
Source classification: primary_measurement. MANIFEST tier: PRIMARY. This is a selected, bounded transcription, not an exhaustive extraction of every result in the paper. Each selected number has its own PDF page or table locator. Values for different matrices, isomers, statistics and aggregate assays are not interchangeable.
Methods (brief)
UPLC-MS/MS and UPC2-MS/MS target analysis; combustion ion chromatography for EOF, PDF pp2-3. Full targeted panel: unstaged supplementary tables.
Detection limits and censoring: Numeric analyte-specific limits are not transcribed; retain the cited PDF or unstaged supplement as the limit source. Do not infer a limit.
Limitations
- AGGREGATE_UNIT_SCOPE: Results use ng of F/L. Comparison: Method/caption print ng L−1 F−1. Locator: PDF p4. Preserve result unit and method wording; no conversion or repair.
Provenance notes
Citation metadata verified against PDF p1, title, author byline, journal citation or masthead, and DOI.. Article DOI appears in the supplied PDF and matches the MANIFEST case-insensitively. Original file: 2022_Jiao_a-pilot-study-on-extractable-organofluorine.pdf. SHA-256: 83c834547d3528e08d065e6db404a2b26cce463b05330b011fb33e37eed9ad6c. Original MANIFEST remains in the copied packet; discrepancies are listed without modifying it. Commercial analyte synonyms, instrument brands and manufacturer names are generalized in authored index prose.