GCMS analysis results, sample AE12325, June 2002

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Gas chromatography mass spectrometry results for sample AE12325 including surrogate recovery data analyzed on June 7, 2002.

NYC-WTC_000014330–000014347

Folder label: “GCMS X 5/24/02 A 5/29/02”

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NYC 9/11 Public Portal Document Library searen Compound Report Data File : C:\MSDCHEM\1\DATA\052902\12325.D Vial: 13 Acq On : 29 May 2002 7:51 pm Operator: McLean Sample : gc/ms scan 5/24 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 7 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.93 11.91 ug/L 8520920 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qu. 1 2-Pentanone, 4 - hydroxy - 4 - me t hyl - 116 C6H12O2 000123-42-2/78 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 64 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 33 Abundance Scan 485 (5,929 min): 12325.D (-480) (-) m/z 43.10 160.00% 43

5000 59 101 5.60 5.80 6.00 6.20 01 ................. fum +53+ • ‘ i • * ‘ । ■ i * i ■ i371 69 S3 J 117 125 i '' ' ■ l ■ ' ' • I ‘ ‘ ■ I ‘ ‘ ‘ 1 1 1 ' ' 1 I ‘ ‘ ■ I '1 ' ‘ I' ‘ m/z 59.10 35.07% n/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 17"m 7'! ' । 1 । I 59 5.60 5.80 6.00 6.20 15 m/z 58.10 21.49% 101

miz-> 25,31 37,., Of ■' i "1" 11 10 20 30 40 +53+ T' ' 1 1 I 50 60 70 80 90 100 tr 83 1 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 T pru i ‘ ‘ I* 1 . i । i ... । 5.60 5.80 6.00 6.20 50001 m/z 101.10 14.29% 59 101 53 67 27 77 37 91 - 01 —PPL44 ++ 1—— miz- > 10 2030405060 70 8090 100 110 120 130 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 4)3 5.60 5.80 6.00 6.20 m/z 41.05 6.03% 5000i 59

n/z—> 0. -2,9z+ 10 20 30 40 —TH 83 93 | R3 — 101 11 ' ■ ■' I ■ ■ ■ ■ i ■ ■ ■ ■ i ■ 1 • 11 1 • ■ ■ i ‘ 50 60 70 80 90 100 110 120 130 ' i • ■ ■ ■ i • ■ KTTPTPf 5.60 5.80 6.00 6.20

12325.D 052202.M Mon Jun 03 10:53:24 2002 Page 10

NYC-WTC_000014344

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