VOC analysis results, sample AE03947, Feb 22 2002

NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\HPCHEM\1\DATA\02FEB21\3504.D Vial: 8 Acq On : 22 Feb 2002 1:27 am Operator: 201-wb Sample : nyc Inst : GC/MS Ins Mise : February 21, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\HP021702.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Library : C:\DATABASE\NBS75K.L

Peak Number 4 Benzene, 1,2-difluoro- Concentration Rank 2

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

15.80 0.04 ug/L 72428 1,4-DIFLUOROBENZENE 15.14

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Benzene, 1,2-difluoro- 114 C6H4F2 000367-11-3 86 2 Benzene, 1,4-difluoro- 114 C6H4F2 000540-36-3 59 3 Benzene, 1,3-difluoro- 114 C6H4F2 000372-18-9 59 4 2,4-Imidazolidinedione, 3-methyl- 114 C4H6N2O21 006843-45-4 9 Abundance Scan 695 (15.800 min): 3504.D (-) m/z 114.15 100.00% 1 4

5000 63 88 _ MMA-mmme 50 57 15.40 15.60 15.80 16.00 16.20 i , 69 75 m/z-> 30 40 44 50 laleam. 60 70 80 ■ i 1 1 90 100 i ■ ■ ■ ■ i 1 ■ ■ ' i ' 110 i 120 m/z 88.10 27.98%

Abundance #2863: Benzene, 1,2-difluoro- 1 4

5000 15.40 15.60 15.80 16.00 16.20 63 88 m/z 63.05 27.48%

49 75 81 94 ■ i ‘ • i ■ ‘ ■ i ■ — ----- । /z-> 30 40 50 60 70 80 90 100 110 120 Abundance #64097: Benzene, 1,4-difluoro- 1 4

15.40 15.60 15.80 16.00 16.20 5000 m/z 50.05 15.58%

63 88 50 57 /z-> 30 ' i ' ■ ■ ' i ' ■ ' ■ I ' 40 50 rp60 75 81 94 ■ i ■ ■ ■ ' i'' ■ 1 - 14— r । . . . . ।

70 80 90 100 110 I 120 Abundance #2865: Benzene, 1,3-difluoro- 1 4 15.40 15.60 15.80 16.00 16.20 m/z 57.05 10.41%

5000 63 88 50 57

m/z-> 12 30 40 50 60 75 81 I t ‘ I ' ‘ ‘ * I ‘ ’ 70 80 t I | । 90 94) । | i i । । | r i 100 110 120 T T 15.40 15.60 15.80 16.00 16.20

3504.D HP021702.M Fri Feb 22 15:03:37 2002 Page 4

NYC-WTC_000020369