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GCMS blank analysis, sample AE01639, March 2002

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Gas chromatography-mass spectrometry blank analysis for sample AE01639 completed March 21, 2002, with all organic compound detections below minimum detection limits.

NYC-WTC_000012083–000012093

Folder label: “GCMS X 3-1-02 A 3-20-02 MANY RERNNS

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NYC 9/11 Public Portal Document

Library Search Compound Report

.. Data File : C:\MSDCHEM\1\DATA\031902\301LB.D Vial: 20 Acq On : 20 Mar 2002 4:50 am Operator: McLean Sample : RE-INJ 3/1 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\l\5973N\5080302.M (RTE Integrator) Title : Quantitation For Method 508gcscan Library : C:\DATABASE\WILEY7N.L

Peak Number 2 Cyclohexasiloxane, dodecame... Concentration Rank 1

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

15.11 1.01 ug/L 362276 Naphthalene-d8 13.02

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Cyclohexasiloxane, dodecamethyl-... 444 C12H3606Si6 000540-97-6 91 2 Cyclohexasiloxane, dodecamethyl- 444 C12H36O6Si6 000540-97-6 59 3 1,1,1,5,7,7, 7-Heptamethyl-3,3-bi... 444 C13H40O5Si6 038147-00-1 17 4 5-(2,3-BIS(TRIMETHYLSILYLOXY)PRO... 444 C20H40N205Si2 012774-38-8 17 Abundance Scan 1327 (15.112 min): 301LB.D (-) m/z 73.10 100.00% 73

5000 341

147 429 14*80 15.00 15.20 1540 ‘ 45 207 251 miz-> 0- - 50 117 —*——9*1 100 150 .1 200 -T- 250 300 350 3111 400 m/z 341.00 37.33%

Abundance #352523: Cyclohexasiloxane, dodecamethyl- $$ Dodecamethylc... 73 341

429 5000 14.80 15.00 15.20 15.40 m/z 147.10 16.22% 147 45 0- t » • ‘ I ’ 117 207 267 311 i. 397 n/z-> 50 100 150 200 250 300 350 400 Abundance #352522: Cyclohexasiloxane, dodecamethyl- 73 > 111 > i ■ । > / iV| 1111 ji ri > f

14.80 15.00 15.20 15.40 5000 m/z 429.10 15.53% 341 429 147 45 117 | 177 207 237 271 311 0- fl ‘ 1 p 1,1 I l_____ o*st**avfo*44/7 i ..*"1***1* 367 397 m/z-> 50 100 150 200 250 300 350 400 Abundance #352530:1,1,1,5,7,7,7-Heptamethyi-3,3-bis(trimethylsiloxy... 73 14.80 15.00 15.20 15.40 m/z 342.00 13.59% 147 5000 267 355 429 45 207

0 * ‘ i • /z—> 50 100 150 200 250 300 350 400 14.80 15.00 15.20 15.40

301LB.D 5080302.M Thu Mar 21 06:35:37 2002 Page 4

NYC-WTC_000012090

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NYC-WTC_000012090Source: NYC Law Department, mirrored locally

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Calibration data for sample AE01639 verifying instrument performance for volatile organic compound analysis on March 21, 2002.

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