GCMS analysis results for sample AE10896, May 21 2002

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Laboratory report detailing GCMS analysis of sample AE10896 conducted on May 21, 2002, including surrogate recovery data.

NYC-WTC_000024083–000024099

Folder label: “GCMS X 5/10/02 A 5/16/02”

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NYC 9/11 Public Portal Document

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Data File : C:\MSDCHEM\1\DATA\051602\10896.D Vial: 9 Acq On : 16 May 2002 9:03 pm Operator: Mclean Sample : 5/10 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.

5.97 16.83 ug/L 12725300 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qua

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 90 2 2-Pentanone, 4 -hydroxy-4 -methyl- 116 C6H1202 000123-42-2 72 3 2-Pentanone, 4-hydroxy-4 -methyl- 116 C6H1202 000123-42-2 64 4 Acetone_____ 58 C3H60 000067-64-1 32 Abundance Scan 492 (5.970 min): 10896.D (-484) (-) m/ z 43.10 100.00% 43

5000 59

101 5 60 5.80 6.00 6.20 6.40

m/z-> o! 1ann)).......38,1) +48,53+ f 1 1 671 1 1 731 1 ' 1 1 831 ' 1 1 1 1 1 1 1,|I 10 20 30 40 50 60 70 80 90 100 ' 1 I ' 110 m/z 59.10 35.81% Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 59 560 5.80 6.00 6.20 6.40 m/z 58.10 22.54% 15 101 Ol Fl III11 253] . 38,1 +53+ I ■ ■ ■ ■ i ■• ■ ■ ■ i 83 ■ i ■ ■ ■ 1 | i 1 ' ' ■ i 1

miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 5 60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 13.82%

........... ^,3!1 , 381 92 83 — 93 101 | 0! ■ 1 i ■ ■ ■ 1 i 11 । । । ' ' ' । । । I ' 14 I ■ ■ ■ ‘ i ■ ■ ■ ' i 1 1 ' ' i ■ ' ■ 1 i ‘ ' i ■ miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 1 i ' ■ ■ ■ i ■ ■ 43 5.60 5.80 6.00 6.20 6.40 m/ z 41.10 6.20% 5000 59

n/z-> 0 ........... 27, 32 38, +48,534 ................. .... T1 1 I ' | ‘ ' ''I1 10 20 30 40 50 60 67 72 77 83 aa 91 96. | I ■ 1 1 1 i ■ ' 1 1 i ' ' ■ 1 i ' 1 1 1 1 1 1 1 1 1 1 70 80 90 100 101

110 KT 1 I1 1 5.60 5.80 4.4.— 6.00 6.20 6.40

10896.D 050102 .M Fri May 17 15:04:48 2002 Page 8

NYC-WTC_000024095

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