Laboratory notes identifying potential laboratory contamination by specific esters in sample AD28899.
NYC-WTC_000035717–000035726Folder label: “GCMS X 11/28/01 A 12/7/01”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
‘ Comments for Sample AD28899 - Analysis $GCMS
Westchester Dept, of Labs & Research User: Vinci, David L Date: 12-17-2001 Time: 10:22:38
The GCMS scan, from 35 to 550 amu, does not reveal the presence of unusual compounds. Present in this sample is Decanedioic acid bis(2-Ethylhexyl) ester at an estimated level of 1.1 ug/L; however its presence is probably due to laboratory contamination since it was also present in the Laboratory Blank. Also present is Di-n-butlyphthalate at an estimated level of 0.27 ug/L.
NYC-WTC_000035717
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NYC-WTC_000035755
Lab report noting bis(2-Ethylhexyl) Sebacate detection and potential laboratory contamination in a water sample.
1 shared topics · Same agency, volume and box · similarity 0.999
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Laboratory notes indicating re-extraction is required due to low recovery and potential contamination.
1 shared topics · Same agency, volume and box · similarity 0.999
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Lab notes for sample AD29190 indicate detection of di-n-butylphthalate and one LCS compound outside acceptance range.
Same agency, volume and box · similarity 0.998
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Laboratory report noting detection of bis(2-Ethylhexyl)phthalate in sample AD29028 analyzed on December 18, 2001.
1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035727
Laboratory notes stating the GCMS scan of sample AD28897 revealed no unusual compounds.
1 shared topics · Same agency, volume and box · 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 · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035580
GCMS scan results for sample AD28903 dated December 15, 2001, detecting bis(2-Ethylhexyl)phthalate.
Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000037269
Gas chromatography-mass spectrometry report documenting analysis of sample AD29964 conducted on January 28, 2002.
Same agency, volume and box · similarity 0.997
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Analysis comments for sample AD29089 reporting no unusual compounds in GCMS scan but noting one compound recovery above acceptance range in LCS Standard.
Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036255
Laboratory analysis report for sample AD29294 conducted on December 28, 2001, including surrogate recovery data.
1 shared topics · Same agency, volume and box · similarity 0.997
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Laboratory analysis report for sample AD29296 conducted on December 28, 2001, including surrogate recovery data.
1 shared topics · Same agency, volume and box · similarity 0.997
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Laboratory report of gas chromatography-mass spectrometry analysis for sample AD30115 conducted on January 9, 2002.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000035745
Laboratory notes indicating re-extraction is required due to low recovery and potential contamination.
Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035931
Laboratory report noting detection of Decanedioic acid bis(2-Ethylhexyl) ester in sample AD29027 on December 18, 2001.
Similarity score 0.991 (not a probability)
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Laboratory analysis report for sample AD29285 conducted on December 28, 2001, including surrogate recovery data.
Similarity score 0.985 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000018849
GCMS report for sample AD28861 showing detection of unknown compounds and surrogate recovery data.
Similarity score 0.985 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035322
Laboratory report noting detection of Di-n-butylphthalate in a WTC environmental sample.
Similarity score 0.984 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035330
Laboratory report noting detection of Di-n-butylphthalate in a WTC environmental sample.
Similarity score 0.984 (not a probability)
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NYC-WTC_000035662
Department of Environmental Protection record logging GCMS X samples from November to December 2001.
Filed in the same folder
NYC-WTC_000035663
Fragmented document containing method 508 data and sample IDs processed by GCMS in late 2001.
Filed in the same folder
NYC-WTC_000035664
Laboratory data sheet recording GCMS Method 508 analysis of a blank sample for nitrosamines and chlorinated compounds.
Filed in the same folder
NYC-WTC_000035674
Calibration data sheet verifying instrument response for nitrosamines and benzene derivatives.
Filed in the same folder
NYC-WTC_000035678
Document containing calculated reference values for various organic compounds analyzed by GCMS.
Filed in the same folder