VOC analysis results, sample AE02575, Feb 8 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\HPCHEM\l\DATA\02FEB08\2579.D Vial: 8 Acq On 8 Feb 2002 10:58 pm Operator: 201-wb Sample nyc 524 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: RTEINT.P Quant Method : C:\HPCHEM\1\METHODS\HP021102.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Library : C:\DATABASE\NBS75K.L Peak Number 1 Urea, N,N-dimethyl- Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T. 15.77 0.04 ug/L 44413 1,4-DIFLUOROBENZENE 15.11 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Urea, N,N-dimethyl- 88 C3H8N20 000598-94-7 5 2 2,3-Dioxabicyclo [2.2.2]octane 114 C6H10O2 000000-00-0 4 3 Urea, ethyl- 88 C3H8N20 000625-52-5 4 4 l-(Propenylthio)prop-l-ene 114 C6H10S ________ 000000-00-0 3 Abundance Scan 682 (15.774 min): 2579.D (-) m/z 114.15 100.00% 1 4

5000

50 63 88 Y... ... ....... 15.40 15.60 15.80 16.00 40 I _ m/z 63.05 29.32% ■ ■ i ■ ■ ■ ■ i ■ ■ ■ ■ i ■ ' ■ ' i ■ 1 ■ ■ I ‘ ■ i ■ ' ' ■ i ' ■ ' ‘ i ■ ■ i ■'' ‘ i' ■ ■ ■ i ■ • • i < ■ m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #62896: Urea, N,N-dimethyl- 44

5000 88 11 15.40 15.60 15.80 16.00 m/z 88.00 23.57%

mlz~> Abundance 4 pi 10 15

20 30

30 •. । 56 । ■ ri 40 50 60 70 80 90 100 110 120 #2867:2,3-Dioxabicyclo[2.2.2]octane 72 < i t, 11111 i ■ ‘ ■ ■ i ■ ■ ■ ■ i ■ ‘'11'1

29 15.40 15.60 15.80 16.00 1 5000 81 m/z 56.95 16.45% 57 114 44 67 .......... • • i ■ • >»i ■ • 1.II,.. I • ■ i ■ ■ ■ i' ■ ■' i ■ ‘ ■ i ■ *<। • m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #789: Urea, ethyl- 30 44 ■ i ‘ ' i ■ ■ ' ■ i ' ' ■ ■ i 1 ■ ■ • i ■ 15.40 15.60 15.80 16.00 73 m/z 50.05 15.06% 88 5000

—7L 40 -H 56 ’1’1111111*11111113 -r-TT-r ‘ i ■ ‘ • i 1 ■ ■ ' i ' ■ ■ ■ i ■ ■ ■ ■ i ■ m/z—> 10 50 60 70 80 90 100 110 120 20 30 15.40 15.60 15.80 16.00

2579.D HP021702.M Wed Feb 20 16:35:06 2002 Page 1

NYC-WTC_000019637