GCMS analysis results, sample AE10701, May 2002

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Gas chromatography-mass spectrometry analysis of sample AE10701 conducted May 20, 2002, detecting unknown compounds and 2,4-DDD at 82% recovery.

NYC-WTC_000045748–000045760

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

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Data File : C:\MSDCHEM\l\DATA\020513\10701.D Vial: 12 Acq On : 13 May 2002 11:24 pm Operator: Nefliu Sample : sample 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 2 2-Pentanone, 4-hydroxy-4-me ... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 6.15 12.36 ug/1 910353 1,4-Dichlorobenzene-d4 11.38 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 64 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 59 3 2-Fentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 42 4 Pre pane, 2-methyl-2-(1-methyleth. .. 116 C7H160 017348-59-3 28 Abundance Scan 523 (6.152 min): 10701.D (-520) (-) m/z 43.10 100.00% 43 59 5000

101 I I l t I > I I I I I I [ I I I I I I I l—I I I

5 80 6.00 6.20 6.40 । 48 53,. 73 83 1 m/z-> 1) 10 ............... 20 30 38,1 40 50 ' I 11 1 1 i ■ 1 ■ 1 r1'1 1 1 i 1 1 1 1 i 1 1 1 1 rr 60 70 80 90 100 110 m/z 59.10 55.78%

Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 1 1 I ■ 1 > ■ T • ■ ■ 1 । ■ 1 TTBBTm 59 5.80 6.00 6.20 6.40 m/ z 58.10 20.99% 15 31 101

1 .... -1..... 29,,1.38,1 53 , 83 . 1 .............. । l r ■ > > । • 1 ■ ■ । ■ 1 1 । ■ > • । । > ■ > ■ । । m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 ' 1 1 1 ' "II > i । । I7T8 r‘ i । i 580 6.00 6.20 6.40 5000 m/z 101.10 17.62% 59 — 101 ............. 37.32 38,1 48 53, 1 1 I 1 1 1 1 I 1 1 । IT 1 । ' 1 | । I1, । । ~ ।1i 67 72 । 77 I | r 1 >' i । । 83 91 96, | । ' > ' ' । । , r I' ।11 i । । । i n/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 580 6.00 6.20 6.40______ m/z 41.05 7.15% 5000 59

22 101 n/z-> ......... 10 20 2921 30 .38,140 i । । । । rI 1 | ' 1 1 ' I ■ ■ ■ ■ | 50 60 70 80 83 93 । ‘ 1 | > > -n-1 । ' । । | । 90 100 110 224— r PP7, rm . 5.80 6.00 6.20 6.40

10701.D SCAN020507 .M Wed May 15 08:41:58 2002 Page 4

NYC-WTC_000045755

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