GCMS blank analysis results for sample AD29735, Jan 29 2002

Machine-extracted title · confidence 100%

Blank analysis report confirming no detectable levels of target compounds above the method detection limit.

NYC-WTC_000018808–000018816

Folder label: “GCMS X 12/17/01 A 12/22 - 12/23/01”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : M:\INSTRU~1\209\DATA\DEC2101\LBE.D Vial: 15 Acq On : 22 Dec 2001 10:26 pm Operator: 209 GALOS Sample : gc/ms scan 12/17 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 1 N-Ethylformamide Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 7.59 3.77 ug/1 899792 1,4-Dichlorobenzene-d4 11.67 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 N-Ethylformamide 73 C3H7NO 000627-45-2 9 2 Silane, tetramethyl- 88 C4H12S1 000075-76-3 9 3 1,3-Dioxolane, 2-(3-bromo-5,5,5-tri 352 C10H16BrC13O2 000000-00-0 9 4 1-Butanamine, 3-methyl - 87 C5H13N 000107-85-7 7 (Abundance Scan 277 (7.590 mln): LBE.D (-) m/z 73.0.0 100.00% 73

5000 43 TTt r . . J >-T-« 1 i ■ ■ ‘ ■ i • ‘ ■ i ■ ■

87 7.20 7.40 7.60 7.80 8.00 1 '"1 1 ' 1 1 1 1 1 1 1 1 1 38,11.1..50.55. 11r TTEmmm 67, । Pr 103 ‘ I ’ 4 i , । । । , । i , । । * । t । । > m/ z 43.0.0 30.30% mlz-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #292: N-Ethylformamide 30 73

5000 1 1 1 1 1 ■ I * ■ -1 1 . . i ■ । Tn i । । . 58 7.20 7.40 7.60 7.80 8.00 44 m/z 44.9,5 11.24% 15 --P • I ■ ‘ 1 ; ■ 1 ■ i • 1 • ■ i ■ • ‘ ■ i • • • • i 1 • • • i ■ ■ ■ • i ' ‘ m/z-> 10 20 :30 40 50 60 70 80 90 100 110 120 Abundance #62932; Silane, tetramethyl- 73 » [4 11 * I it TBuuTgur 7.20 7.40 7.60 7.80 8.00 5000 m/z 41.0.0 10.43% 45 15 53 59 88 TTIBPPTT 1 I 1 1 11 I 1 1 ■ 1 i ■ ■ ■ • i • • ■ 1 i ‘ ■ • ■ i • ■ • ■ I ■ ■ ■ ■ i ■ ' miz-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #49423:1,3-Dioxolane, 2-(3-bromo-5,5,5-trichloro-2,2-dimet IIBTTROmTTTTTT 73 7.20 7.40 7.60 7.80 8.00 m/z 71.00 6.91% 5000 45 ...... 36 1 55 ’ 144’416***1**.* . । , i . . । । 67. 14144 ■ 'i 1 +r _ ______________ 109115 ■ I ■ ■ ‘ • i ■ • 1 ' i ■ ■ ■ ‘ i • ■ ■ 1 i ■ 1 » । » 1I । j ss I114I1 PT i । । i r m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 7.20 7.40 7.60 7.80 8.00

LBE.D GCMS1126.M Tue Jan 29 14:35:33 2002 Page 1

NYC-WTC_000018814

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NYC-WTC_000018814Source: NYC Law Department, mirrored locally

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GCMS results for unknowns, sample AD26477, Dec 2001 · Box DEP Box 16

NYC-WTC_000018923

GCMS analysis report for sample AD26477 showing detection of unknown compounds and surrogate recovery data from December 21, 2001.

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