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 3 3,6-Dioxa-2,4,5,7-tetrasilaoct Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T.
43.96 0.97 ug/1 100563 Perylene-dl2 37.12
Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 3,6-Dioxa-2,4,5,7-tetrasilaoctane, 294 C10H3002Si4 004342-25-0 37 2 3-Isopropoxy- 1,1, 1,7,7,7-hexamethyl 576 C18H5207Si7 071579-69-6 23 3 3,7-Dioxa-2,8 -disilanonane, 2,2,8,8 220 C9H2402Si2 017887-80-8 9 4 Ethanedioic a cid, bis(trimethylsily 234 C8H18O4Si2 018294-04-7 9 Abundance 1 Scan 4239 (43.957 min): 28151.D (-) m/z73.00100.00% 73 147 _/ 221 5000 281 355 ‘I T IT 429 43 60 43.80 44.00 44.20 43 - — 119 191 --- 23 - m/z 147.00 90.76% mlz-> Abundance
5000 50
73 100
117 150
147 200
191 250 300 350 #41682: 3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7- 221
279 400 450 500 550
—A 43 60 43 80 44 00 44.20 m/z 221.0563.00%
A — mlz-> 50 100 150 I 200 1 250 4 300 350 400 450 500 550 Abundance #60503: 3-Isopropoxy-1 ,1,1,7,7,7-hexamethyl-3,5,5-tris(trim 73 TT I • • • • l ' f ■ • j U" 43.60 43.80 44.00 44.20 5000 m/z 207.00 41.22% 147 wupha 211 2132715 5956 m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #70530: 3,7-Dioxa-2,8-disilanonane, 2,2,8,8-tetramethyl- ‘T T T 147 43.60 43.80 44.00 44.20 m/z 281.00 35.72% 73 5000 115
4 1 177205............... ‘I IT m/z-> 50 100 150 200 250 300 350 400 450 500 550 43.60 43.80 44.00 44.20
28151.D GCMS1126.M Wed Nov 28 07:56:34 2001 Page 3
NYC-WTC_000033798
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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