GCMS analysis results for sample AE10809, May 2002

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Gas chromatography-mass spectrometry report for sample AE10809 showing detection of unknown compounds and surrogate recovery.

NYC-WTC_000045984–000046005

Folder label: “GCMS X 5/7/02 A 5/15/02”

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NYC 9/11 Public Portal Document . Data File C:\MSDCHEM\1\DATA\051402\10809.D Vial: 19 Acq On 15 May 2002 5:01 am Operator: Mclean Sample 5/7 kb 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 3 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

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

5.98 14.48 ug/L 17366100 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42 8 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 78 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 47 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 Abundance Scan 493 (5.976 min): 10809.D (-479) (-) m/z 43.10 100.00% 43

5000 59 > । । _ । । । । J L। । । । । । । । । _ 101 , | 117 125 5.60 5.80 6.00 6.20 6.40 ................................. 3/ 1 53, 69 83 m/z 59.10 39.63% 01 ‘ I’’’ 'I'" ' I 1 ' 1 1 1 1 [1" 'i 1 1 1 1 i ' r ■ | । 1 ' ' | I ' ■ ■ | 1 ' ' 1 | F ' 1 ■ | 1 1

m/z—>__ 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 > । 1l । । । r i । । । T । । । । । । । ~i । i । 59 5.60 5.80 6.00 6.20 6.40 m/z 58.05 20.54% 15 101 ol ■ ■ i ■ 25,3137,1, +53+ I [ I I 1 F | I I I 1 | 1 83 , | । | ' F । F | F 1 1 1 | ।‘1 1 । | । I 1 I | I 1 I 1 | । I F , । , , , ■ । ,

m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 ....... 11 5.60 5.80 6.00 1 ' i ■ ■ ' ■ i ' 1 6.20 6.40 5000 m/z 101.10 15.03% 59

........ 25,31 37,1 —HI ' ''I- 63 83 93 101 — । Of inp1। । । ।iiDiifi[r

m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 560 5.80 6.00 6.20 6.40 m/z 41.20 6.57%

5000 59 — 101 0 ......... 27,1 371 1 । | । I । । । ~ i 1 | i i i i | r , 53, 67 Hr V 77 8,3 91 , | 1 1 i ' 1 1 1 i ' 1 1 1 i 1 1 ' 1 i ' ' 1 1 i 1 1 1 ■ i ■ ' T1v 3 < । । । । r । । । 10dn; i । t t i 1 m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20 6.40

10809.D 050102.M Thu May 16 12:37:24 2002 Page 7

NYC-WTC_000045995

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NYC-WTC_000045995Source: NYC Law Department, mirrored locally

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Gas chromatography-mass spectrometry report for sample AE10811 showing detection of unknown compounds and surrogate recovery.

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