GCMS analysis results for sample AE10021, May 2002

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Laboratory report documenting GCMS analysis of sample AE10021 conducted on May 14, 2002, identifying unknown compounds.

NYC-WTC_000044144–000044155

Folder label: “GCMS X 4/26/02 A 5/8/02”

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NYC 9/11 Public Portal Document

Data File C:\MSDCHEM\1\DATA\020507\10021.D Vial: 20 Acq On 8 May 2002 6:51 am Operator: Nefliu Sample sample Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: rteint.e

Quant Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1

Peak Number 3 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 6.15 14.49 ug/1 1336660 1,4-Dichlorobenzene-d4 11.38 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 42 3 /Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 36 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 Abundance Scan 523 (6.152 min): 10021.D (-513) (-) m/z 43.05 100.00% 43

59 5000

101 ■ ■ । 1 ■ 1 1 । 1 ■ 1 1 i 1 1 IFT । । । । । । , 1................................................. 193 580 6.00 6.20 6.40 ................. .. . 'T +p Tpumum1‘1—0010111110001001011UUI0UTTTB331II—BBBBBB0—1r 69 83 m/z 59.10 51.07% m/z--> 10 20 30 40 50 60 70 80 90 100110120130140150 160170180190 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 —। । > 'T111 1 i1 ' r111 ' 11 59 5 80 6.00 6.20 6.40 m/z 58.10 19.97% 15 31 101

m/z-> l Trr-fT H 83 ,| 11" " i' i1 "1111" I'" 1 r ■ ■ ■ i " " i" " I" " I " " I"111" " r1111' 10 20 30 40 50 60 70 80 90 100110120130 140150160170180190 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 — — —— 580 6.00 6.20 6.40 5000 59 m/z 101.10 17.35%

31 83 101 .................. ............. - I "11111" i" r "1 r "' r1111 ■1111 > i " । ।■ i■■ ■■ i" ■11 ’ m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190 Abundance #5493: Acetic acid, 1,1 -dimethylethyl ester 1FI । । । । । । 43 5,80 6.00 6.20 6.40 m/z 41.05 7.16% 57 5000 A 15 29 101 116 73 /z-> m10mll TTTTT TTI—uT i" " i1" ■ l11" i I" " r1" i" " i 20 30 40 50 60 70 80 90 100110120130 140 150 160 170 180 190 TT—r-——RTr 5.80 6.00 6.20 6.40

10021.D SCAN020507.M Tue May 14 08:44:53 2002 Page 5

NYC-WTC_000044152

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GCMS analysis results for sample AE10019, May 2002 · Box DEP Box 25

NYC-WTC_000044119

Laboratory report documenting GCMS analysis of sample AE10019 conducted on May 14, 2002, identifying unknown compounds.

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