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DEP GCMS unknown compounds report, Mar 2002

Machine-extracted title · confidence 95%

GCMS analysis report dated March 6, 2002, listing other unknown compounds and surrogate recovery data for a different sample.

NYC-WTC_000003803–000003816

Folder label: “GCMS X 1/25/02 A 2/26/02

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Scanned page image, NYC-WTC_000003814
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OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

• Data File : C:\HPCHEM\l\DATA\FEB2502\1802.D Vial: 28 Acq On : 26 Feb 2002 4:31 pm Operator: Sample : gc/ms scan 1/25 Inst : GC/MS 209 Mise : Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0208.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 5 3,6-Dioxa-2,4,5,7-tetrasilaoct Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

42.97 2.22 ug/1 118006 Perylene-dl2 38.05

Hit# Of 5 Tentative ID MW MolForm CAS# Qual

1 3,6-Dioxa-2,4,5,7-tetrasilaoctane, 294 C10H3002Si4 004342-25-0 25 2 Trisiloxane, 1,1,1,5/5,5-hexamethyl 384 C12H3604Si5 003555-47-3 25 3 3-Isopropoxy-1,1,1,7, 7,7-hexamethyl 576 C18H5207Si7 071579-69-6 23 4 1,1,1,5,7,7,7-Heptamethyl-3, Abundance 3-bis (t 444 C13H40O5Si6 Scan 4132 (42.973 min): 1802.D (-) 73.00 038147-00-1 17 100.00% 73 | m/z 147 221 5000 231 355 42.60 42.80 43.00 43.20 43.40 •193 253 -Lh i . -" / ■ ' i ' 1 ' ' i 1 m/z—> 50 100 150 200 250 300 350 400 450 500 550 Abundance #4 1682: 3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2.24.4.5.5.7.7- 147 221

73 5000 1 1m i ' ' 1 ‘ i 1 ' ' 1 I ' 1 1 1 1 1 42.60 42.80 43.00 43.20 43.40 191 117 279 m/z221.05 “ 58.37%

n/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance 73 147 1 P ‘ ' 1 1 1 1 1 1 1 1 1 1 1 I1 f 1 TIB _ 42.60 42.80 43.00 43.20 43.40 5000 m/z 28 1.00 3 0.43% 281 45 369 ............ 117............207 249 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 42.60 42.80 43.00 43.20 43.40 m/z 355.05 26.47% 5000 147 ! 221 281 327 415 519 551 ......... I ' ' ' ' i ' ' ' ' i ' ' 1 1 i ■ ' ' 1 , ' ' ' r i 1 ' ' I ' ' ' 1 I 1 1 1 1 I ' 1 1 ' I ■ ' i ■ m/Z-> 50 100 150 200 250 300 350 400 450 500 550 42.60 42.80 43.00 43.20 43.40

1802.D GCMS0208.M Thu Feb 28 11:52:37 2002 Page 5

NYC-WTC_000003814

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NYC-WTC_000003814Source: NYC Law Department, mirrored locally

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