GCMS blank analysis results, June 5 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\1\DATA\060402\604LB.D Vial: 3 Acq On 4 Jun 2002 5:29 pm Operator: McLean Sample 6/4 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e 2** Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************** Peak Number 11 Thiophene Concentration Rank 13 R.T. EstConc Area Relative to ISTD R.T. 4.91 0.40 ug/L 195466 1,4-dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Thiophene 84 C4H4S 000110-02-1 1 2 Thiophene 84 C4H4S 000110-02-1/9 3 Thiophene 84 C4H4S 000110-02-1 9 4 Krypton 84 Kr 007439-90-9 5 Abundance Scan 312 (4,912 min): 604LB.D (-309) (-) m/z 84.00 00.00% 84

e 5000 49

35 43 188 . I r. 1111 11111! I 111111 11111111111 > 111 itJ 11 u I: i n 11111 [ (u , 1111 1111 > | (. i > i] 11 111.111111 1111 1111 n 111, t 4.60 4.80 5.00 5.20 0- m/z 86.00 43.04% m/z-> 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Mrwo Abundance #116585: Thiophene 84 MWypMw 58 5000 • ■ ■ i ■ ■ ‘ ■ i ' ■ ■ • i ■ ■ • ■ i 1 ■ • ■ i 45 4.60 4.80 5.00 5.20 39 m/z 49.10 42.94%

miz-> 0 T Tr 0 12 18 50 26 32, . 'h 11111' 111 H 69

5 101520253035404550556065707580859095 -7 .89 Abundance #33732: Thiophene 84 ■ ■ ‘ i • 1 ■ ■ i ■ ' ■ ‘ i • ■ ■ 1 i ■ ‘ ■ i 58 4.60 4.80 5.00 5.20 45 5000 m/z 88.00 10.08%

/z-> Abundance 0- 1 12 26 32 n 50 । TpH 11111■■ ■! 1111■!■ 111111II111 1 I h i 11111111 39

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 #116584: Thiophene +.f$.++++8Q,11488,. TTp-r wou. 84 4.60 4.80 5.00 5.20 58 m/z 83.00 8.27% 45 5000 39 26 32 50 69

n/z-> 0 ’i’f in |i TII’T 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 + ■ ■ i ■ ■ 1 ■ i ' ■ ■ ■ i ' ■ 4.60 4.80 5.00 I ■ ■ ' ■ i 5.20

604LB.D 060302.M Wed Jun 05 12:28:48 2002 Page 14

NYC-WTC_000015513