Analytical commentary for sample AD28151 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
NYC-WTC_000033789–000033799Folder 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\28151.D Vial: 18 Acq On : 27 NOV 2001 3:19 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 2 3,6-Dioxa-2,4,5,7-tetrasilaoct Concentration Rank 2
R.T. EstConc Area Relative to ISTD R.T.
39.59 0.59 ug/1 60783 Perylene-dl2 37.12
Hit# of 5 'entative ID MW MolForm CAS# Qual
1 3,6-Dioxa- ,4,5,7-tetrasilaoctane, 294 C10H3002Si4 004342-25-0 23 2 2,6-Dimethyl-3,4-bis (trimethylsilyl 311 C15H29NO2Si2 000000-00-0 16 3 Trisiloxane, octamethyl- 236 C8H2402Si3 000107-51-7 14 4 4-Isothi zolecarboxylic acid, 3,5-b 221 C6H7NO2S3 004886-15-1 9 Abundance Scan 3763 (39 587 min): 28151 D (-) m/ z 73.00 100.00% 73
147 221 5000 281 355 "F T T T
m/z-> 39 96 H r .... ........... , T 191 I T mI 253 40 60 80 100120140160180200220240260280300320340360380400420 [ , 327 429 i" " i 39.20 39.40 39.60 39.80 40.00 m/z 220.95 61.36% Abundance #41682: 3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7- 147 221 / । ■ 1
73 5000 T T 39.20 39.40 39.60 39.80 40.00 191 m/z 147.00 58.94% 117
mz-> r‘"i m mhm ■ 279 mpmmmmmmmmmmmm 40 60 80 100120140160180200220240260280300320340360380400420 #44359: 2,6-Dimethyl-3,4-bis(trimethylsilyloxymethyl)pyridi .... ............
Abundance 73 221
39 20 39.40 39.60 39.80 40.00 5000 - 147 m/z 354.95 26.69% 178
miz-> 45 h ....... — Ime T m E296
40 60 80 100120140160180200220240260280300320340360380400420 iH ■ ■ i" " i" " i" " i" " i" " i
Abundance #71066: Trisiloxane, octamethyl-
a ‘I T 73 221 3920 3940 39.60 39.80 40.00 m/z 281.00 23.01% 5000
103 133 189 1 T’T’TT mmmpm 111 CI 11 11 > | ■ I I> | 11<■111..1.... 1.■1.1.... 1.... I
n/z-> 40 60 80 100120140160180200220240260280300320340360380400420 39.20 39.40 39.60 39.80 40.00
28151.D GCMS1126.M Wed Nov 28 07:56:32 2001 Page 2
NYC-WTC_000033797
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NYC-WTC_000033742
Analytical commentary for sample AD28153 dated November 29, 2001, noting no unusual compounds but 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_000033954
Laboratory report documenting GCMS analysis for unknown compounds and surrogate recovery in sample AD28229 conducted on January 9, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033731
Laboratory report detailing GCMS analysis of sample AD28145 conducted on November 29, 2001, noting unknown compounds.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
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_000034799
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28593 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034741
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28600 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034877
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28477 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034790
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28599 analyzed in early December 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034402
Laboratory report documenting GCMS analysis of sample AD28428 conducted between November 21 and 26, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034750
Laboratory analyst notes on GCMS scan results detecting bis(2-ethylhexyl)phthalate and recovery rates for sample AD28594.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034819
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 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000019070
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.
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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