VOC analysis results, sample AE10240, May 3, 2002

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Data File C:\MSDCHEM\l\5973N\02MAY03\10516.D Vial: 21 Acq On 4 May 2002 1:41 am Operator: Sample nyc Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSC.P

Quant Method : C:\MSDCHEM\1...\W050302.M (RTE Integrator) Title : VOC method 8260 Library : C:\DATABASE\WILEY7N.L

Peak Number 2 Benzene, 1,4-difluoro- (CAS... Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T. 18.47 0.06 ug/L 27214 1,4-Difluorobenzene 17.70 Hit# ..of 5 Tentative ID MW MolForm CAS# Qual --------1----- 1 Benzene, 1,'4-difluoro- (CAS) $$ . . . 114 C6H4F2 ' 000540-36-3 87. 2 Benzene, 1,3-difluoro- $$ Benzen... 114 C6H4F2 000372-18-9 87 3 Benzene, 1,3-difluoro- 114 C6H4F2 000372-18-9 86 4 Benzene, 1,4-difluoro- $$ Benzen... 114 C6H4F2 000540-36-3 86 Abundance Scan 1483 (18.475 min): 10516.D (-) m/z 114.10 100.00% 1 4

5000 63 44 Y68 75 81 94 18.20 18.40 18.60 18.80 0 ..... Ur mTz eTTOO^ 25.39% m/z-> Abundance 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110 115 120 #14696: Benzene, 1,4-difluoro- (CAS) $$ 1,4-Difluoroben2en... 1 4 A 5000 18.20 18.40 18.60 18.80 m/z 88.10 14.85% 50 57 68 75 81 T 95 0 T^TTTTrkTTT+i+TTT^nrTTT+T^^ "I'^P'I TT/z-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115 120 Abundance #14690: Benzene, 1,3-difluoro- $$ Benzene, m-difluoro- $$ ... 1 4

18.20 18.40 18.60 18.80 553 m/z 4 9.9,0 12.50% 63 88 50 5775 81 94 0 lp"'P'"l""|l"'P . .......................... I” " ‘ I ‘" Tife-> Abundance 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115 120 #14689: Benzene, 1,3-difluoro- 1 4 M 18.20 18.40 18.60 18.80 mTz 56.90 11787% 5000

■nZz-> 0 37 50 57 I 63 68 4TTTVp4TTT^4+TTT+^TrTr^ 94 75 88 ....................... ... 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115 120 " I'' 11 18.20 18.40 18.60 18.80

L0516.D W050302.M Mon May 06 10:32:35 2002 Page 4

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