GCMS analysis results for sample AE10306, May 2002

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Laboratory report documenting gas chromatography-mass spectrometry analysis of environmental sample AE10306 conducted on May 17, 2002.

NYC-WTC_000045137–000045154

Folder label: “GCMS X 5/1/02 A 5/8/02”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File C:\MSDCHEM\1\DATA\050802\10306.D Vial: 9 Acq On 8 May 2002 8:19 pm Operator: Mclean Sample 5/1 eh 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 5 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.98 12.14 ug/L 12131100 1,4-Dichlorobenzene-d4 9.94 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 90 2 2-Pentanone, 4-hydroxy-4-methyl - 116 C6H12O2 000123-42-2—72 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 56 4 Acetone_______ 58 C3H60 000067-64-1 32 Abundance Scan 493 (5.976 min): 10306.D (-479) (-) m/ z 43.10 100.00% 4(3

5000 59 101 1 1 1 1'' i 1 11' L .. । । , 83 5.60 5.80 6.00 6.20 6.40 53 69 . I 125 m/z-> 0 .............. 10 20 30 37,1/ 40 +T+ 50 60 I 1 1 ' 1 i 1 ' 1 ■ i ''' 1 ■ i 1 1 ' 1 i 1 1 1 ' i ■ ' ' ■ i ■ ■ 1 1 i 1 70 80 90 100 110 120 130 m/z 59.10 34.63% Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 40

5000 59 5.60 5.80 6.00 6.20 6.40 m/ z 58.05 22.26% 15 34 101

m/z-> 0! I 25,, | 37, 1, 111111, i v ।'l'!5 ,, I1,11 10 20 30 40 +53+50 60 70 80 83 90 , | 100 110 .120 130 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 4(3 ■ i ■ 1 ■ 1 | ■ ■ ■ '■ i r-r1 j i 1 1 i "f i ■ 5.60 5.80 6.00 6.20 6.40 5000 59 m/Z 101.10 13.70%

0! .......... 37, 1 ' U 63 83 93 101| — 1 1 1 ' 1 ' i 1 ' ' ' i 1 ' ' 1 i 1 ' 1 1 i 1 1 1 1 i 1 1 ' ' i ' ' ' ' i 1 m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 1 ' । 1 43 5 60 5.80 6.00 6.20 6.40 m/z 41.20 5.82%

5000

59 101 27 11,1,1, 37 Yl/’l l-i , । 53 67 77 83 91 , | 0 T-i'I I I i 1 । 1 । * 1 1 1 । > - 1 1 । 1 ■ > | । । > । > । < * 1-* "i 1 1 * i [ i ' 1 i tir163 1 । । vT I[1 nr "("I n/z—> 10 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20 6.40

10306.D 050102.M Thu May 09 13:51:39 2002 Page 8

NYC-WTC_000045149

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NYC-WTC_000045149Source: NYC Law Department, mirrored locally

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