GCMS blank analysis results, sample AE11799, May 2002

NYC 9/11 Public Portal Document Library Search Compound Report ’ Data File : C:\MSDCHEM\1\DATA\052202\521LB.D Vial: 3 Acq On : 22 May 2002 3:27 pm Operator: Mclean Sample : 5/21 ad 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 5 Methylene Chloride Concentration Rank 8

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

3.89 0.72 ug/L 445502 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 4 2 Methylene Chloride 84 CH2C12 000075-09-22 3 Methylene Chloride 84 CH2C12 000075-09-2 2 4 Methylene Chloride 84 CH2C12 000075-09-2 2 Abundance Scan 137 (3.884 min): 521 LB.D (-136) (-) m/z 49.10 100.00% 49

5000 84

36 87 3.60 3.80 4.00 4.20

niz-> 5 01 . .... ..... ......1.2243,, 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T '■I""!'" m/z / 51.10 — 42.34% Abundance #111040: Methylene Chloride 49 84

5000 ■ '1 ■ । ‘ । ■ i ■ ■ ■ * ।1 *1 ■ 3.60 3.80 4.00 4.20 35 m/z 84.00 37.77% 88

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75—aoap80—t85T + 41 niz-> Of 111114111/12528,32,1282 70 Hp 12TWIpmaemuam 90 95 Abundance #12327: Methylene Chloride 49 84 3.60 3.80 4.00 4.20 5000 m/z 86.90 16.91

88 14 18 24 2831 353841 Of 111 “ " I" " 1' “ ‘!1'11 i" " i11" I"11111" 11 ,52 Te________ 70______ , Hmm —mmnm—npmnaponpotf niz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111039: Methylene Chloride ’ • i ■ ■ •p-r 49 3.60 3.80 4.00 4.20 m/z 81.90 16.28% 84 5000

88 2831 3538 43 152 57 67 71 77 0 T ————————— TTMTTET thmmp Tf miz—> 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

521LB.D 052202 .M Tue May 28 11:57:58 2002 Page 8

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