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GCMS blank analysis results for VOCs, May 6-13 2002

Machine-extracted title · confidence 100%

Laboratory report of a GC/MS blank run analyzing volatile organic compounds with results below detection limits in May 2002.

NYC-WTC_000045687–000045697

Folder label: “GCMS X 5/3/02 A 5/13/02

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NYC 9/11 Public Portal Document LiDrary searcn compound Report

Data File : C:\MSDCHEM\1\DATA\020513\0506LB.D Vial: 3 Acq On : 13 May 2002 2:29 pm Operator: Nefliu Sample : 05/06 lab blk Inst Instrumen Mise : Multiplr: 1.00 MS Integration Params: rteint.e

Quant Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1 ********************************************************************* Peak Number 5 Octasiloxane, 1,1,3,3,5,5,7... Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 32.19 0.38 ug/1 43869 Phenanthrene-dl0 31.72

Hit# of 5- Tentative ID MW MolForm CAS# Qual

1 Octasiloxane, 1,1,3,3,5,5,7,7,9,... 578 C16H50O7Si8 019095-24-0 38 2 1,1,1,5,7,7,7-Heptamethy1-3,3-bi. . . 444 C13H4005Si6 038147-00-1 25 3 Heptasiloxane, 1,1,3,3,5,5,7,7,9... 504 C14H4406Si7 019095-23-9 23 4 3-Isopropoxy-1,1,1,7,7,7-hexamet... 576 C18H5207Si7 071579-69-6 17 Abundance Scan 4954 (32.187 min): 0506LB.D (-4944) (-) m/z 73.10 100.00% 73

5000

147 MA,00000150014414 201 2EE 429 44 31.80 32.00 3220 32.40 32.60 99 188,1 265 295 327 | 385 [ 459 ' i ' ' ■ ■ 1 1 ■ TTT । 1 I > । । । ’l > ' ‘ i ( • 1 ■ ' 1 ''1 ' ■ ' 1 1 1 ■ ■ 1 ■ 1 ' ■ 1 m/ Z 147.10 22.78% m/z~> 50 100 150 200 250 300 350 400 450 500 550 Abundance #27373: Octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,1... 73 |Y 1..... 4.X .k....... .. 5000 207 31.80 32.00 32.20 32.40 32.60 281 m/z 429.00 147 17.03% 45 117177_ ■ 1 i ' 1 1 251 | 313, । ”i II "I । । i FIT r i TIdt i । । i 341 1 371 401 2 r _r 429 1 i i i | । t । ।7 t। । । । । 503 । । । । i i 563 i ।

m/z--> 50 100 150 200250 300 350 400 450 500 550 Abundance #26950:1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy)... 73

147 31.80 32.00 32.20 32.40 32.60 5000 267 m/z 221.20 12.65% 355 429 45 207

......11 1 'i ' 1 1-1 1 1 Ut ' I * a /z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #27374: Heptasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13-tet... ' — i i | i > । • I i > 73 31.80 32.00 32.20 32.40 32.60 m/z 355.20 12.16% 5000 207

133 281 355

/z—> 45. TI ‘ 1 +193+1,4 1771 + *dddd—)—ummmmTTT 50 100 253 I 327 I 383 429 489 250 300 350 400 450 500 550 150 200 1 ' 1 1 ' ' ' I 31.80 32.00 32.20 32.40 32.60 ' I 1 1 ' ' I ’ '

0506LB.D SCAN020507.M Tue May 14 15:47:18 2002 Page 7

NYC-WTC_000045696

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NYC-WTC_000045696Source: NYC Law Department, mirrored locally

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