GCMS surrogate recovery report, sample AE12283, June 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\0610022\12283.D Vial: 11 Acq On : 10 Jun 2002 7:10 pm Operator: Sample : gc/ms scan 6/7 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 Butanoic acid, 2-methyl-, m.. Concentration Rank 7

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

4.53 2.73 ug/L 2167500 1,4-dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 053955-81-035 2 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 000868-57-535 3 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 35 4 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 25 Abundance Scan 247 (4,530 min): 12283.D (-243) (-) m/z 88.00 100.00% 57 83

5000 41 49 "Au, 101 ■ ' i ' ■ ‘ ' i ‘ ■ i ■ ■ ■ ‘ i ■ ■ ■ ■ i I 70 4.20 4.40 4.60 4.80 |

miz-> 0 ■ ' i ‘ 1 ' ' i ■ 10 20 TTTTJi . 1 . 30 401 50I X. 41... 1 60 70 80 90 i ■ ■ ■ ■ i ■ ■ ■ ' i ■ ■ ■ ' i ‘ ■ 100 110 120 m/z 57.15 90.38% Abundance #17385: Butanoic acid, 2-methyl-, methyl ester, (.+/-.)- 57 88

5000 29 41 vhmhrw h Aunauuly 4.20 4.40 4.60 4.80 15 74 m/z 49.10 72.25% 101 ......... | 0- 1 ■ i ■ ' ' ■ i ■ l m ■ ■ 111,— 1 • i . + TT , । lib i 1 ■ ■ ■ i ■ ■ ■ 1 i ‘ 1 1 1 I 1 1 miz-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #112664: Butanoic acid, 2-methyl-, methyl ester 57 88 41 ' ■ ■ i 1 ■ ■ ■ i ■ ■ ■ ■ i ■ ■ • ■ i • ■ ■ ■ i 4.20 4.40 4.60 4.80 5000 m/z 41.05 43.25%

74 101 0—P r 1 I ' 1 ‘ m 1114 +1151. h ■ ■' 1, .'L ! ■ ■ + ,........ I,....... 116 iz-> 10 20 30 401 50 60 70 80 90 100 110 12) Abundance #117026: Butanoic acid, 2-methyl-, methyl ester ‘ ■ I ' ' ' ' I 1 ' ' ‘ I 1 ■ ' ‘ I ' ‘ ' I 57 83 4.20 4.40 4.60 4.80 m/z 85.00 34.95%

5000- 29 41 101 "Mbal.... m/z—> 0-rr 1111 ■ lp ■ 11 10 20 30 401 +51+ 50 1,1,75.81., 60 70 80 , 90 116 100 110 120 ' I 1 1 1 1 I 1 । i > । 1 i i । । । । 4.20 4.40 4.60 4.80

12283.D 060302 .M Tue Jun 11 08:24:19 2002 Page 15

NYC-WTC_000015715