GCMS surrogate recovery results, sample AE03020, March 2002

NYC 9/11 Public Portal Document *‘P***s

Data File C:\MSDCHEM\1\DATA\022802\03019.D Vial: 12 Acq On 1 Mar 2002 9:23 pm Operator: McLean 'Sample 2/12/02 GC SCAN Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\1\5973N\5080202.M (RTE Integrator) Title : Quantitation For Method 508gcscan Library- : C:\DATABASE\WILEY7N.L

Peak Number 1 Silane, tetramethyl- Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

5.60 1.16 ug/L 356690 1,4-Dichlorobenzene-d4 9.58

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Silane, tetramethyl- 88 C4H12Si 000075-76-3 38 2 Butane, 2-methoxy-2-methyl- 102 C6H140 000994-05-8 36 3 3-Pentanol, 3-methyl- 102 C6H140 000077-74-7 36 4 Silane, tetramethyl- 88 C4H12Si 000075-76-3 28 Abundance Scan 278 (5.598 min): 03019.D (-) m/z 73.10 100.00% 73 8000

6000

4000

2000- 45 5.20 5.40 5.60 5.80 6.00 ' I ' ' ' ' i ' । । । i । 155.. ,I I I I ' ' I ' I ' ' ' 1 I ' ' ' ' I 87 103 ■ । ■ ■ * ■ । 1 1 1 '' i 1 ’ 1 1 i 1 m/z 45.10 15.73% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #4815: Silane, tetramethyl- 73 8000

6000

4000 mm 5.20 5.40 5.60 5.80 6.00 m/z 71.10 8.11% 2000 45 29 39 | | 53 59 65 1, 80 88 1 1 i ■ ' ■ ' i ' ' ' ■ i 1 ' 1 1 I 111 1 1 1ro‘tE 'I'' i’i 1 ' ' ................... I । m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #9701: Butane, 2-methoxy-2-methyl- 73 8000

6000 5.20 5.40 5.60 5.80 6.00 m/z 55.10 5.11% 4000 55 43 87 2000 27 ■ ' i ■ ' । । i । +1,33.1711.4%, 61.67 | 7~n 101 1 i ' 1 1 ' i ' 1 * ■ i 1 m/z->______ 10 20 30 40 50 60 70 80 90 100 110 Abundance #9663: 3-Pentanol, 3-methyl- ............. I,.............. 73 5.20 5.40 5.60 5.80 6.00 8000 m/z 74.10 4.36% 6000

4000 55 2000 45 87 15 27 39 1 1 1 T1 I’i 1 1 1 1/111/77711, + ' I 1 ''' 1 | ' ' ' ' | ' ' ' ' । ' m/z—> 10 20 30 40 50 60 70 80 90 100 110 5.20 5.40 5.60 5.80 6.00

13019.D 5080202.M Mon Mar 04 05:43:10 2002 Page 3

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