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\NOV2 601\LBA.D vial: 9 Acq On 26 Nov 2001 6:31 pm Operator: 209 GALOS Sample 11/20 lab blk 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 9 Trisiloxane, 1,1,1,5,5,5-hexam Concentration Rank 6
R.T. EstConc Area Relative to ISTD R.T.
47.05 0.69 ug/1 133756 Perylene-d12 37.12
Hit# Of 5 Tentative ID MW MolForm CAS# Qual
1 Trisi loxane, 1,1,1,5,5,5-hexamethyl 384 C12H3604Si5 003555-47-3 35 2 1,2-B enzenedicarboxylic acid, bis(t 310 C14H22O4Si2 002078-22-0 35 3 Ethanedioic acid, bis(trimethylsily 234 C8H18O4Si2 018294-04-7 12 4 3,8/Dioxa-2,9-disiladecane, 2,2,9, 9 234 C10H26O2Si2 018001-91-7 12 Abundance Scan 4576 (47.051 min): LBA.D (-) m/z 73.00 100.00% 73 147 221
5000 281 355
n/z-> .............. ...................... ,T, 40 60 80 100120140160180200220240260280300320340360380400420 46.80 47.00 47.20 47.40 m/z 147.00 77.27% .................. .................................... Abundance #74103: Trisiloxane, 1,1,1,5,5,5-hexamethyl-3,3-bis[(trimet 73 147
5000 46.80 47.00 47.20 47.40 281 m/z 220.95 70.88% 45 369 .......... / L 'I " ' 'I 117 207 249 'I'I "" I' -rq-r T TTTTTTTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT m/z-> 40 60 80 100120140 160 180 200220 240260 280300 320 340 360 380 400 420 Abundance #72973:1,2-Benzenedicarboxylic acid, bis(trimethylsilyl) e 147 73 46.80 47.00 47.20 47.40 5000 m/z 281.00 36.42% */ 45 .295 119 , m .. —... — UI’ 193 2 TTUETITI’TTTTTTTTTT’ TT‘). nrp TCICTTIEIE‘TUTCTI‘‘‘‘T m/z-> 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #30580: Ethanedioic acid, bis(trimethylsilyl) ester 73 147 46.80 47'00 47.20 47.40 m/z 354.95 34.18% ............ .............................. 5000 45
m/z—> m 190 219 mpmTTTTTTTTTTmTTTTTT TTTPTTTTTT 40 60 80 100120140160180200220240260280300320340360380400420 46.80 47.00 47.20 47.40
LBA.D GCMS1126.M Tue NOV 27 12:44:30 2001 Page 9
NYC-WTC_000033721
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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 0.996 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034198
Laboratory report detailing GCMS analysis of sample AD28263 conducted between November 21 and 26, 2001.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000069154
Document containing tabular laboratory data including pH and count metrics for environmental sample analysis in November 2001.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000069357
Laboratory report documenting GC/MS analysis of sample AD25049 conducted on November 28, 2001.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000017833
Laboratory report detailing gas chromatography-mass spectrometry analysis of sample AD30351 conducted on January 10, 2002.
Similarity score 0.993 (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 0.993 (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