Laboratory report detailing GCMS analysis of sample AD28145 conducted on November 29, 2001, noting unknown compounds.
NYC-WTC_000033731–000033741Folder label: “GCMS X 11/20/01 A 11/26/01”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Comments for Sample AD28145 - Analysis $GCMS Westchester Dept, of Labs & Research User: Vinci, David L Date: 11-29-2001 Time: 09:45:13
The GCMS scan, from 35 to 550 amu, reveals the unconfirmed presence of 2-Ethyl-1 -hexanol, with a probability fit of 86 out of 100; and 4,4‘-(1-methylethylidene)bis-phe ol with a probability fit of 94 out of 100. Their estimated levels are 0.8 ug/L and 0.5 ug/L respectively. Recoveries for 14 of the 44 compounds in the LCS Standard were outside of their acceptance ranges. The recovery for the Surrogate Standard in this sample was 85%.
NYC-WTC_000033732
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NYC-WTC_000033789
Analytical commentary for sample AD28151 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033954
Laboratory report documenting GCMS analysis for unknown compounds and surrogate recovery in sample AD28229 conducted on January 9, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033742
Analytical commentary for sample AD28153 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
1 shared non-person entities · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034868
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28597 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034877
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28477 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034799
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28593 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034781
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28652 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034927
Laboratory report detailing GCMS scan results for sample AD28598, noting phthalate detection and recovery rates.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034790
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28599 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034741
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28600 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036425
Laboratory report documenting GCMS analysis of sample AD29457 conducted on January 4, 2002, showing unknown compounds and surrogates.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036029
Laboratory report noting GCMS scan results for sample AD29140 with one compound recovery outside acceptance range.
1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000035651
Lab report noting bis(2-Ethylhexyl)phthalate detection and recovery issues in a water sample.
Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035618
Lab report noting bis(2-Ethylhexyl)phthalate detection and recovery issues in a water sample.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034988
Laboratory report noting contamination from the TurboVap concentrator and recovery rates for sample AD28662.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035000
Laboratory report detailing GCMS scan results for sample AD28680, noting phthalate detection and recovery rates.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034919
Laboratory report detailing GCMS scan results for sample AD28596, noting phthalate detection and recovery rates.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034908
Repeat gas chromatography-mass spectrometry analysis of sample AD28596 after re-extraction, confirming bis(2-Ethylhexyl)phthalate at 0.36 ug/L with improved standard recovery of 89
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000033704
Department of Environmental Protection record logging GCMS X samples from November to December 2001.
Filed in the same folder
NYC-WTC_000033705
Fragmented page from a GCMS-related record dated between November 20 and 26, 2001, likely part of the WTC environmental monitoring series.
Filed in the same folder
NYC-WTC_000033707
Laboratory report of a GCMS blank analysis for sample AD28143 conducted on November 28, 2001, listing various organic compounds below detection limits.
Filed in the same folder
NYC-WTC_000033723
Calibration record for GCMS instrument 209 using method GCMS1126, dated November 26-28, 2001, listing standard compounds and retention times.
Filed in the same folder
NYC-WTC_000033726
Laboratory report of a GCMS reference analysis for sample AD28143 conducted on November 28, 2001, listing detected compounds and retention times.
Filed in the same folder