GCMS surrogate recovery results, sample AE12326, June 2002

NYC 9/11 Public Portal Document . Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052902\12326.D Vial: 17 Acq On : 29 May 2002 11:07 pm Operator: McLean Sample : gc/ms scan 5/28 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 10 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 5 R.T. EstConc Area Relative to ISTD R.T. 5.95 1.45 ug/L 924360 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 2 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 25 3 2 -Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2/23 4 Acetone____ 58 C3H60 000067-6471 12 Abundance Scan 488 (5.946 min): 12326.D (-480) (-) m/z 43.10 100.00% 43

5000 59 35 83 101 125 5.60 5.80 6.00 6.20 0—PPmp —4 .......... 1 1 I *1,'‘ 1 1 1 1 ‘‘'’i ■ • ‘ ■ l ■ • ■ ■ i ■ 1* i ■ ■ m/z 59.10 23.15% niz-> 20 30 40 50 60 7080 90 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 -‘ I ■ • ‘ • I ' ‘ ‘ ' I ‘ ' I ‘ 5.60 5.80 6.00 6.20 59 m/ z 58.10 18.34%

L 27 1 QI- 53, 67 77 83 91 , | O—TT ,41,1,4,137, +4 1dFcdnn///m1/n/n/////B/nm0dn/1/k.n nz-> 20 30 40 50 6Q 70 80 90 100 110 120 130 Abundance #109591: Acetic acid, 1,1-dimethylethyl ester 43 PTP —iANo 5.60 5.80 6.00 16.20 57 m/z 101.10 5000 9.90% 101 73 89 | mfe-> 0—PPP) 20 30 —4+ 40 PI— 50 60 11′4 • • 1 I ■ ■ ‘ ■ i • ■ ■ ''i ■ ■ • ■ i 1 ■ ■ ■ i ■ • ■ ■ i • ■ • ■ i ■ ‘ 70 80 90 100 110 120 130 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- ' ■ i ■ ■ ' • i ' ' < ■ j1 • > ■ i • 43 5.60 5.80 6.00 6.20

A m/z 42.10 6.08% 5000 59

0 ..2537/37, | —PT 1****14**81+*11***/*/*I*I*1** _______ 93 no 101 83 93 1___________ n/z-> 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20

12326.D 052202.M Mon Jun 03 11:32:54 2002 Page 13

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