Laboratory report detailing GCMS scan results and recovery rates for environmental sample AD28147 analyzed in December 2001.
NYC-WTC_000033874–000033883Folder label: “GCMS X 11/20/01 A 11/26/01”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
s Comments for Sample AD28147 - Analysis $GCMS
Westchester Dept, of Labs & Research User: Vinci, David L Date: 12-06-2001 Time: 12:02:09
The GCMS scan, from 35 to 550 amu, does not reveal the presence of unusual compounds. However, bis(2-Ethylhexyl)phthalate is present at an estimated level of 0.54 ug/L. The recovery for the Surrogate Standard in this sample was 91%. Recoveries for 14 of the 44 compounds in the LCS Standard were outside of EPA 625 acceptance ranges. Soon however, GCMS method acceptance ranges will be established and used instead.
/0 A y‘ p"
NYC-WTC_000033874
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000033856
Analytical commentary for sample AD28141 dated December 6, 2001, noting detection of bis(2-Ethylhexyl)phthalate and low recovery rates.
1 shared non-person entities · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033865
Gas chromatography-mass spectrometry analysis of sample AD28141 showing no unusual compounds detected; method acceptance ranges to be established and used.
1 shared non-person entities · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033847
Analytical commentary for sample AD28163 dated December 6, 2001, noting no unusual compounds and low recovery rates for LCS standards.
1 shared non-person entities · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034938
Laboratory report detailing GCMS scan results for sample AD28651, noting low pH and recovery rates.
1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035745
Laboratory notes indicating re-extraction is required due to low recovery and potential contamination.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035990
Laboratory report noting detection of bis(2-Ethylhexyl)phthalate in sample AD29028 analyzed on December 18, 2001.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035717
Laboratory notes identifying potential laboratory contamination by specific esters in sample AD28899.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035843
Lab notes for sample AD29190 indicate detection of di-n-butylphthalate and one LCS compound outside acceptance range.
Similar document embedding; no shared entity or topic indexed. · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034289
Gas chromatography-mass spectrometry analysis of sample AD28432 conducted November 30, 2001, detecting other unknown compounds with results referenced in comments.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035909
Lab notes for sample AD29024 indicate detection of bis(2-Ethylhexyl)phthalate and no unusual compounds.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035755
Lab report noting bis(2-Ethylhexyl) Sebacate detection and potential laboratory contamination in a water sample.
1 shared topics · similarity 0.996
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 0.996
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000033856
Analytical commentary for sample AD28141 dated December 6, 2001, noting detection of bis(2-Ethylhexyl)phthalate and low recovery rates.
Similarity score 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034376
Laboratory commentary dated December 3, 2001, regarding sample AD28469 analysis, noting bis(2-Ethylhexyl)phthalate presence.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034898
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28596 analyzed in early December 2001.
Similarity score 0.996 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034759
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28595 analyzed in early December 2001.
Similarity score 0.996 (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 0.996 (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 0.996 (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