GCMS analysis results for sample AE10134, May 8 2002

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Laboratory report documenting GCMS analysis of sample AE10134 conducted on May 8, 2002.

NYC-WTC_000044408–000044429

Folder label: “GCMS X 4/29/02 A 5/3/02”

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NYC 9/11 Public Portal Document

Data File C:\MSDCHEM\1\DATA\050202\10134.D Vial: 26 Acq On 3 May 2002 9:42 am Operator: Mclean Sample 4/29 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title 508 Modified GC/MS scan Library C:\DATABASE\NIST98.L ********************************************************************* Peak Number 4 3-Penten-2-one, 4-methyl- Concentration Rank 14

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

5.02 0.22 ug/L 120087 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 3-Penten-2-one, 4-methyl- 98 C6H10O 000141-79-772 2 2,4-Azetidinedione, 3,3-diethyl-... 155 C8H13NO2 069315-91-9 72 3 3-Penten-2-one, 4-methyl- 98 C6H10O 000141-79-7 64 4 3-Penten-2-one, 4-methyl-98 C6H10O 000141-79-7 64 Abundance Scan 330 (5.018 min): 10134.D (-325) (-) m/z 83.10 100.00% 55 83

98 5000 39 1 । ' 1 1 ■ । ' 1 1 4.60 4.80 5.00 5.20 5.40 J, 1 i 1 1 1 1 I ।11 111'11 ■ ।1111111' ■ । m/z 55.10 87.12% /z—> 50 60 70 80 90 100 110 120 130 140 150 160 Abundance #111648: 3-Penten-2-one, 4-methyl- 83 43

5000 29 1 1 i 1 ‘ 1 ■ i ■ ' 1 98 4.60 4.80 5.00 5.20 5.40 m/z 98.10 50.73% — 1 1 i 1 3644 +4 । 67 75 . +91 i r ]“iTii । । i । । | I I 1 1 1 11 1 ! 11 i ■ 1 ■11 ■ ■ ■' i 1 1 1 11 1 ' 1 ■ i 1 1 m/z-> 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Abundance #33006: 2,4-Azetidinedione, 3,3-diethyl-1 -methyl- 55 83 .................................... 98 1 ■ i 1 4.60 4.80 5.00 5.20 5.40 5000 41 m/ z 39.10 28.17%

m/z-> 20 30 40 ... 50 60 70

70 e.... 80 90 155 11010’1111’111’11—030301101111007 100 110 120 130 140 150 160 I ' r । । 1 । । । । . ... Abundance #116425: 3-Penten-2-one, 4-methyl- 55 83 4.60 4.80 5.00 5.20 5.40 m/z 43.10 27.37%

5000 43 98 bpupopMoooNur 29

, 67 75 . m/z-> — 1 ■ i ■ 20 30 13911, ■ > । 1 1' ' । 1 1 ■ 11 PTT 40 50 60 70 80 90 100 110 120 130 140 150 160 ।' ■111 1 i ■ ■ ‘ ■ i ' 1 i 1 ■ ■ 1 । 1 ' 1 1 । 1 ■ ■ ■ । ■ 1 ■ 1 i 1 ■ 4.60 4.80 5.00 5.20 5.40

10134.D 050102.M Mon May 06 12:24:13 2002 Page 7

NYC-WTC_000044418

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NYC-WTC_000044418Source: NYC Law Department, mirrored locally

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