GCMS blank analysis results sample AE11926, May 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\DATA\052302\522LB.D Vial: 3 Acq On : 23 May 2002 11:36 am Operator: Mclean Sample : 5/22ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C: \DATABASE\NI ST9 8 . L ******************** ************************************************* Peak Number 7 Thiophene Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. 4.36 0.67 ug/L 351482 1,4-Dichlorobenzene-d4 9.89 Hit# of 5 Tentative ID MW MolForm CAS# Qua

1 Thiophene 84 C4H4S 000110-02-1 2 Formamide, N-(cyanomethyl)- 84 C3H4N2O 005018-27-/ 7 3 4H-1,2,4-Triazol-4-amine 84 C2H4N4 000584-13 4 5 4 Propiolonitrile 51 C3HN 001070- -9 5 Abundance Scan 217 (4.354 min): 522LB.D (-215) (-) m/z 84.00 00.00% 84 51

5000 41

47

mfe-> 0- -AA--RH+4 TIPPpe 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 m 91 m/z 400 4.20 51.10 4.40 4.60 72.89% 4.80

Abundance #116584: Thiophene 84 58 45 5000- ‘ ■ i ■ 1 ■ ■ i • ■ ■ ■ > ■ ■ • • i • • 1 • i • 4.00 4.20 4.40 4.60 4.80 39 m/z 41.10 35.45% 26 32 50 69 0: *|।* * 1 | 1 I । 1) *। I I | I 1 < < | I I H | I II ++ 111111rn11 l| I > > H., 11 j,. I ■! ■, 11 j 11 “ i ■ ■1 ■ i111 ■ 11 miz-> 10 15 20253035404550556065 70 75 80859095 Abundance #541: Formamide, N-(cyanomethyl)- 29

84 400 4.20 4.40 4.60 4.80 55 m/z 50.00 18.48% 5000

40 .45 36 0: 1 l‘ " ‘ I 1 1 ‘ ' I'" ‘ l ‘ “ Hr —H++ , 61 66 -7H ttpopet —nmppp mfe-> 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #107976:4H-1,2,4-Triazo)-4-amine 23

"wu 4.00 4.20 4.40 4.60 4.80 84 m/z 47.10 13.27% 5000

18 42

mfz~> 0- 32 38 1 “ 111 “ ।11 “ “ I r TTHHPTTTTT tmmTT Hlllpanr 53 57 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 0 * • i ■ ■ • ■ i 1 ■ 1 1 rr 1 1 1 i ■ ' 11' । 1 4.00 4.20 4.40 4.60 4.80

522LB.D 052202.M Wed May 29 09:38:51 2002 Page 10

NYC-WTC_000013431