GCMS analysis report sample AE11908, June 4, 2002

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GCMS laboratory report for sample AE11908 detecting unknown compounds and 2,4-DDD on June 4, 2002.

NYC-WTC_000013014–000013042

Folder label: “GCMS X 5-21-02 A 5-22-02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052202\11908.D Vial: 15 Acq On : 23 May 2002 1:14 am Operator: Mclean Sample : 5/21 ad 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 11 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.93 10.40 ug/L 6484920 1,4-Dichlorobenzene-d4 9.90 Hit# .of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 7, 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2/ 4 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-? 64 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-8 5 36 Abundance Scan 486 (5.935 min): 11908.D (-478) (-) m/z 43.10 0.00% 43

5000 59

101 1 ‘ I ‘ ‘ I ■ ‘ tt । ■ । ■ । r 5.60 5.80 6.00 6.20 69 83 88 , | Ot .................................. .. +48,53+ ! 1 ■ ■ ■ i ■ ■ ■ ■ i 1 ‘ ■ i ■ • ■ ' i ' ■ • ■ i ■ m/z 59.10 36.86% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

____ 5000 59 5.60 5.80 6.00 6.20 m/z 58.05 22.33% 15 31 101

miz-> 0! .... 10 1,20 29,,1 30 .39,140 +53+ 50 60 I 1 ■ ■ ■ 1 ■ ■ ■ ‘ 1 70 80 83 1 ■ i ■ 90 - 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 4)3 =rfrr=rprrrrorrp 5.60 5.80 6.00 6.20 5000 59 m/z 101.10 14.30%

Ra . 101 04 . 26,31 , 381 1 ' I • ■ ‘ ri 1 ‘ I'l'i'i । 1 >'|'i 83 93 । I ■ ■ ■ ■ i ■ ■ ■ ■ i ' 1 ■ ‘ i ' ■ ' 1 1 1 ■ ■ ' 1 1 niz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- •11 ■ ■ ■ ■ i ■ ■ ‘ • n • ■ ■ । ■ ■ ■11 43 5.60 5.80 6.00 6.20 m/z 41.10 6.11% 5000 59 101 0 ,• . < l ... ■ • ■ ‘ l 1 ‘. 38,11 +48,534 । |-' I 67■' ■" 1721--i77''i 83 -1[4 । ri'i 91 95 | ■ ■ i| 1 ‘ III I II**** 10T /z—> 10 20 30 40 50 60 70 80 90 100 110 5.60 5.80 6.00 6.20

11908.D 052202.M Tue May 28 12:15:43 2002 Page 14

NYC-WTC_000013032

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