GCMS analysis results for unknown compounds, June 2002

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Laboratory report documenting GCMS analysis of sample AE12736 with surrogate recovery data and identification of unknown compounds.

NYC-WTC_000015224–000015252

Folder label: “GCMS X 6/3/02 A 6/7/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\1\DATA\060702\12737.D Vial: 13 Acq On 7 Jun 2002 6:21 pm Operator: Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L Peak Number 12 Hexane, 2,2,5,5-tetramethyl- Concentration Rank 18 R.T. EstConc Area Relative to ISTD R.T.

8.70 0.27 ug/L 147262 1,4-dichlorobenzene-d4 9.89

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Hexane, 2,2,5,5-tetramethyl- 142 C10H22 001071-81-4 36 2 Pentane, 2,2,4-trimethyl- 114 C8H18 000540-84-116 3 Hexane, 2,2-dimethyl- 114 C8H18 000590-73-8/12 4 Pentane, 2,2,3,4-tetramethyl- 128 C9H20 001186-53-4 9 Abundance Scan 957 (8.702 min): 12737.D (-945) (-) m/z 57.10 100/00% 57

5000

01 i i | > > ' i |-r > “ I < i i ! | i 35 43

50 71 85 99 .. .ma m/z 8.40 8.60 56.10 8.80 9.00 41.46% ’I’+*’1’’’’I+-+-1++**I’**///’+’1’’+’1+1111’’4/14 m/z-> 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Abundance #112499: Hexane, 2,2,5,5-tetramethyl- 57

5000 41 71 8.40 8.60 8.80 9.00 | m/z 43.10 33.91% 0 ■■i■■■ ■i""i■■ “ i ■ -50 .................................................. i1 ,64 64 78 85i i1 "‘i1111 95 103 111 119 127 135142 miz-> 0 10 20 30 40 50 60 70 80!90.100 110 120 130 140 150 Abundance #112498: Pentane, 2,2,4-trimethyl- 57 8.40 8.60 8.80 9.00 5000 41 m/z 41.10 31.65%

29 99 A . 15. 1,1 -59 0- ■ ■ i ■ ■1111 ■ ■ ■ i “ 11 i ■ , 64 71 ' i ■ ■ t’04। 83 91 | 114___________ ।i'|.... 11।।।।. niz-> 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Abundance #112495: Hexane, 2,2-dimethyl- 57 8.40 8.60 8.80 9.00 m/z 71.10 27.29 5000 41 29 99 415I....150 +9—79 0- " i ■ ■ ■ ■ i “ “ i ■ ■11111111+1 111“ I ■ i " “ r ' ■ ■ I i 114 ■ i»• • • i ■ • ■ • i It 11i 1 1 1 1 1 1 1 1 1 1 m/z—> 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 8.40 8.60 8.80 9.00

12737.D 060302.M Mon Jun 10 11:24:15 2002 Page 15

NYC-WTC_000015243

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NYC-WTC_000015243Source: NYC Law Department, mirrored locally

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NYC-WTC_000015282

Laboratory report documenting GCMS analysis of sample AE12738 with surrogate recovery data and identification of unknown compounds.

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