Laboratory report of a GCMS blank analysis for sample AD28143 conducted on November 28, 2001, listing various organic compounds below detection limits.
NYC-WTC_000033707–000033722Folder label: “GCMS X 11/20/01 A 11/26/01”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Library Search Compound Report Data File : C:\HPCHEM\1\DATA\NOV2601\LBA.D Vial: 9 Acq On : 26 Nov 2001 6:31 pm Operator: 209 GALOS Sample : 11/20 lab bik scan Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C: \DATABASE\NBS75K . L ********************************************************************* Peak Number 6 Ethanedioic acid, bis(trimethy Concentration Rank 1
R.T. EstConc Area Relative to ISTD R.T. 39.60 2.07 ug/1 401611 Perylene-dl2 37.12 Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 Ethanedioic acid, bis (trimethylsily 234 C8H18O4S12 018294-04-7 27 2 3,6-Dioxy2,4,5,7-tetrasilaoctane, 294 C10H3002Si4 004342-25-0 25 3 3-Isoprqpoxy-l,l,l,7,7,7-hexamethyl 576 C18H5207Si7 071579-69-6 25 4 Mercaptoacetic acid, bis(trimethyls 236 C8H20O2SSi2 006398-62-5 23 . , Abundance Scan 3764 (39.596 min): LBA.D (-) m/z 73.00 100.00%
7 73 147
221 5000 281 355 T T T i ' 1 ' 1 1 ' 429 39.20 39.40 39.60 39.80 40.00
miz-> 40 TTTT 50 103 100 — TPTT TIr191 150 200 250 300 253. i 134744 350 401 1 ' i ( .'H ! | 400 450 . h . | I . . I | I I 500 550 m/z 146.95 __ 78.49% Abundance #71006: Ethanedioic acid, bis(trimethylsily!) ester 73
147 5000 39 20 39.40 39.60 39.80 40.00 45 m/z 221.05 52.33% |_ I 190 219
.. {... 117 VII ‘ ‘ 1 ' I ’ TTTTTr TT—-TTTTTLTTPTTUTTT nfe-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #41682:3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7- 147 221
73 39.20 39.40 39.60 39.80 40,00 5000 m/z 281.00 28.23% 191 .............. 279 1 — — । । 1 - m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #60503: 3-Isopropoxy-1,1,1,7,7,7-hexamethyl-3,5,5-tris(trim 73 39.20 39.40 39.60 39.80 40.00 m/z 207.00 26.82% 5000 147
221 281 327.1... 519 —— TTTLDE’TETEETIIE’IETrET 561 1 I ‘ 1 m/z—> 50 100 150 200 250 300 350 400 450 500 550 39'20 3940 39.60 39.80 40.00
LBA.D GCMS1126.M Tue NOV 27 12:44:23 2001 Page 6
NYC-WTC_000033718
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NYC-WTC_000033886
Technical data sheet recording instrument parameters and calibration details for GCMS Method 508 analysis conducted in November 2001.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000030685
Header page for a gas chromatography-mass spectrometry scan file related to environmental testing at the World Trade Center site.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033800
Analytical commentary for sample AD28157 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 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033765
Analytical commentary for sample AD28149 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 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000017663
Laboratory report documenting gas chromatography-mass spectrometry blank analysis conducted on December 27, 2001.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000019049
Laboratory report documenting gas chromatography-mass spectrometry blank analysis for volatile organic compounds conducted on January 7, 2002.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034180
Laboratory report detailing GCMS analysis of sample AD28269 conducted on November 30, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034331
Laboratory report documenting GCMS analysis of sample AD28427 conducted between November 21 and 26, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034830
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28666 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000047955
GCMS blank analysis report for sample AE08209 listing volatile organic compounds from April 2002.
1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000018420
Laboratory report documenting GCMS blank analysis of sample AD30643 conducted on February 1, 2002.
1 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034958
Calibration report showing recovery percentages for various chemical standards used in the GCMS analysis.
1 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000033886
Technical data sheet recording instrument parameters and calibration details for GCMS Method 508 analysis conducted in November 2001.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034331
Laboratory report documenting GCMS analysis of sample AD28427 conducted between November 21 and 26, 2001.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000068413
Laboratory report documenting GCMS analysis of sample AD24431 conducted on November 7-9, 2001, identifying unknown compounds.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000017854
Laboratory report detailing gas chromatography-mass spectrometry analysis of sample AD30252 conducted on January 10, 2002.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000018445
Laboratory report showing GC/MS calibration data for polycyclic aromatic hydrocarbons and deuterated standards.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000018445
Laboratory report showing GC/MS calibration data for polycyclic aromatic hydrocarbons and deuterated standards.
Similarity score 0.992 (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_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
NYC-WTC_000033731
Laboratory report detailing GCMS analysis of sample AD28145 conducted on November 29, 2001, noting unknown compounds.
Filed in the same folder