Analytical commentary for sample AD28157 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
NYC-WTC_000033800–000033815Folder 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\28157.D Vial: 16 Acq On : 27 Nov 2001 1:22 am Operator: 209 GALOS Sample : 11/20 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 5 1,2-Benzenedicarboxylic acid, Concentration Rank 3
R.T. EstConc Area Relative to ISTD R.T.
39.60 5.22 ug/1 631710 Perylene-dl2 37.12
Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 1,2-Benzenedicarboxylic acid, bis(t 310 C14H22O4Si2 002078-22-0 27 2 Trisiloxane, 1,1,1,5,5,5-hexamethyl 384 C12H3604Si5 003555-47-3 25 3 1,1,1,5,7/7,7-Heptamethyl-3,3-bis(t 444 C13H40O5Si6 038147-00-1 25 4 N-Benzhydrylidene-1- (2,4,6-trimethy 343 C24H25NO 089839-57-6 22 Abundance / Scan 3764 (39.599 min): 28157.D (-) 1m/ z 73.00 100.00% 73 147 221 5000 281 355 TEEE-T—FF11EU.T TT1" TTTTT 39.20 39.40 39.60 39.80 40.00 44 , !96 117 , 165 191 ,, .... ................... 401 429 m/z 146.95 74.01% Toego MTT’TTMTTT TNOTp m/z-> 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #72972:1,2-Benzenedicarboxylic acid, bis(trimethylsilyl) e 147 73 5000 39.20 39.40 39.60 39.80 40.00 45 295 m/z 221.05 54.62%
m/z-> m +Tp 119 , 193 221 | TI■15|■11|||11.|||.11....t|.I.Ijl|||I 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #74103: Trisiloxane, 1,1,1,5,5,5-hexamethyl-3,3-bis[(trimet 73 147 39.20 39.40 39.60 39.80 40.00
7 5000 m/z 281.00 27.78% 281 45 369 ) I I I | I I II | . . . . | . . . i | A . | . . r t | | 117 207 249 TTTTT CTCTTTTTI’TTT "l""l TT i""r m/z-> 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #56714: 1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy)t 73 39.20 39.40 39.60 39.80 40.00 m/z 355.05 24.93% 147 5000 267 355 429 45 207 .................. I"' T T"’ T T i■11 ■ i ।•■••।■ i • ’ i p m/z-> 40 60 80 100120140160180 200 220 240 260 280300 320 340 360 380 400 420 39.20 39.40 39.60 39.80 40.00
28157.D GCMS1126.M Wed Nov 28 09:13:50 2001 Page 5
NYC-WTC_00003381 1
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033834
Analytical commentary for sample AD28155 dated November 29, 2001, noting detection of bis(2-Ethylhexyl)phthalate and low recovery rates.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033752
Analytical commentary for sample AD28159 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
1 shared topics · Same agency, volume and box · similarity 0.997
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 0.998
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 0.998
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 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034198
Laboratory report detailing GCMS analysis of sample AD28263 conducted between November 21 and 26, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035700
Laboratory notes stating the GCMS scan of sample AD28901 revealed no unusual compounds.
1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034213
Laboratory report detailing GCMS analysis of sample AD28271 conducted on December 6, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034988
Laboratory report noting contamination from the TurboVap concentrator and recovery rates for sample AD28662.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034886
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28479 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034808
Laboratory analyst notes on GCMS scan results, recovery rates, and low pH conditions for sample AD28649.
1 shared non-person entities · 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_000035195
Laboratory report noting low pH and TurboVap contamination with recovery data for sample AD28689.
Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035171
Laboratory report noting low recovery rate and TurboVap contamination for sample AD28677.
Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034180
Laboratory report detailing GCMS analysis of sample AD28269 conducted on November 30, 2001.
Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034180
Laboratory report detailing GCMS analysis of sample AD28269 conducted on November 30, 2001.
Similarity score 0.994 (not a probability)
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.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000019130
Laboratory report of gas chromatography-mass spectrometry analysis for sample AD30256 conducted on January 9, 2002.
Similarity score 0.994 (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