Analytical commentary for sample AD28149 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
NYC-WTC_000033765–000033779Folder 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\28159.D Vial: 21 Acq On : 27 Nov 2001 6:15 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 7 3,6-Dioxa-2,4,5,7-tetrasilaoct Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 47.05 2.01 ug/1 354647 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 40 2 3-Isopropoxy- 1, 1,1,7,7,7-hexamethyl 576 C18H5207Si7 071579-69-6 25 3 1,2-Benzenedicarboxylic acid, bis(t 310 C14H2204Si2 002078-22-0 22 4 Trisiloxane,/l,1,1,5,5,5-hexamethyl 384 C12H3604Si5 003555-47-3 16 Abundance Scan 4575 (47.047 min): 28159.D (-) m/z 73.00 100.00% 73 147 221
5000 281 355
D 429 46.80 47.00 47.20 47.40 40 119 193 253. 1 325. 401 l — -Ir ' ' — — . |' 11 • । । 7 rp IT m/z 146.95 90.34% m/z-> 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 5000 -.. r —IT—TIT—J——T——TPTY 46.80 47.00 47.20 47.40 191 m/z 221.05 86.26% 117 .. L 7.. 279 ir — 1 —+.- - l m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #60503:3-lsopropoxy-1,1,1,7,7,7-hexamethyl-3,5,5-tris(trim 73
46.80 47.00 47.20 47.40 5000 m/z 281.00 37.59% 147 221 281 327 ' 1 — 1 — - —.. ' 1 415 519 561 TT — 1 1 T ■ ■ • ■ i » ■ ' • | ■ n . . । r > m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #72973:1,2-Benzenedicarboxylic acid, bis(trimethylsily!) e T T T • ' I ■ ' 147 46.80 47.00 47.20 47.40
5000
45 — 73
, , 118 +19321 TTrr 295 "Pl m/z 207.00 34.27%
T I • 1 1 ' I m/z—> 50 100 150 200 250 300 350 400450 500/ 550 46.80 47.00 47.20 47.40
28159.D GCMS1126.M Wed NOV 28 11:16:02 2001 Page 7
NYC-WTC_000033778
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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 0.999
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 0.998
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_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_000034213
Laboratory report detailing GCMS analysis of sample AD28271 conducted on December 6, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.998
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_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_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 ↗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_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 ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000034799
Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28593 analyzed in early December 2001.
Similarity score 0.998 (not a probability)
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.
Similarity score 0.997 (not a probability)
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.
Similarity score 0.997 (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 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033742
Analytical commentary for sample AD28153 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033789
Analytical commentary for sample AD28151 dated November 29, 2001, noting no unusual compounds but low recovery rates for LCS standards.
Similarity score 0.997 (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