GCMS blank analysis results, May 22, 2002

NYC 9/11 Public Portal Document Library Search Compound Report

Data File C:\MSDCHEM\1\DATA\052102\LB.D Vial: 10 Acq On 21 May 2002 8:40 pm Operator: Mclean Sample 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\NIST98.L **************************** * * * ************************************** Peak Number 7 Krypton Concentration Rank 16

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

3.91 0.33 ug/L 259274 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Krypton 84 Kr 007439-90-9 9/ 2 2-Butenal, 2-methyl- 84 C5H80 001115-11-3 A 3 Perdeuterobenzene 84 C6D6 001076-43-3/4 4 Thiophene 84 C4H4S 000110-02-/ 4 Abundance Scan 141 (3.908 min): LB.D (-140) (-) m/z 84.00 100.00% 84

5000 87 43 49 3.60 3.80 4.00 4.20 01TTmR 37 I t+ • l > ■ • > I' • m/z 86.90 21.96% miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #33829: Krypton 84

5000- 3.60 3.80 4.00 4.20 42 m/z 88.00 20.97%

miz-> Abundance 5 0! ■ • i • ■ • • । ■ ■ •11' • •' i 1’233) WP—emmmpaTm 10 15 20 25 30 35 40 45 50 55 60 • 65 70 75 80 85 90 95 #116563:2-Butenal, 2-methyl- 55 80

84 “ ■ i ““ i “

w.Mhs ‘ ‘ ‘ i ‘ ; i ' ' ■ ' i • ‘ ‘ ' i ‘ ‘ ‘ ‘ I 3.60 3.80 4.00 4.20 5000 29 m/z 49.10 16.82% 41 26 441111 i|l51i |ll Hgu 38iil| 11il , 69 01 — I’ i ■ । ■ 3& I1 ".'I11,11" miz-> 5 ' ‘ 1 * ‘4 ‘ 14' * * I 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #33650: Perdeuterobenzene 84 ' 3.60 3.80 4.00 4.20 ‘ m/z 82.00 15.23% 5000 52 56 42 12 18 24 28, 48 0 T—n—mmmp—p—HT IT! 1 38, 62 66 72 76 80 TTT "I ""I" /z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

LB.D 052202.M Wed May 22 12:03:14 2002 Page 10

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