GCMS blank analysis results for May 2002

NYC 9/11 Public Portal Document Llprary searcn compound Report

Data File C: \MSDCHEM\1\DATA\ 0 50 902 \ 0 50 8LB . D Vial: 4 Acq On 9 May 2002 5:43 pm Operator: Mclean Sample 5/8 kb Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 2 Silacyclopentane Concentration Rank 14

R.T. EstConc Area Relative to ISTD R.T. 3.76 0.23 ug/L 182629 1,4-Dichlorobenzene-d4 9.94 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Silacyclopentane 86 C4H10Si 000288-06-2 4 2 Thiazole 85 C3H3NS 000288-47-1 2 3 Methylene Chloride 84 CH2C12 000075-09-22 4 Methylene Chloride 84 CH2C12 000075-09/2 2 Abundance Scan 116 (3.761 min): 0508LB.D (-114) (-) m/z 58.10 100.00% 47 53 37 41 85 5000 88 3 40 3.60 3,80 4.00 4.20 51 — --TPmmummmme 0 1 ■ i1'1 ■ i''111'1'' i '' i ■ ■1' i ■ ■ m/z 47.10 96.21% m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #18430: Silacyclopentane 58

5000 3 40 3.60 3.80 4.00 4.20 43 86 m/z 37.10 80.34% 55 -Hr 71 831 111111111 4 ., 'I'"1............................ 01 ' i'1' ■ i'1 ■ ■ r ''' i' .... 11 ■'1 ' i ■' III | 4 miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #116710: Thiazole 85 58 3.40 3.60 3.80 4.00 4.20 5000 m/z 41.10 66.55%

_ 45

n/z-> 01 TPTIIWTTTTTTTT 20 25 30 36 40 35 40 | 51 45 50 55 60 65 70 „ll61... 70 "I" " I'1" i1"1 75 80 82 85 +88——IIIT 90 95 Abundance #111041: Methylene Chloride 49 3.40 3.60 3.80 4.00 4.20 m/z 49.10 64.14% 84 5000 PMas"uao,, 46 2629 41 I 88 miz-> 0 -+52 59 TI-11m ’65 73 77 1—n1urpounptt I " " I " ' 11 " " I " " 111111 1 — 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ■ ■ i ■ ■ 3.40 3.60 3.80 4.00 4.20

0508LB.D 050102.M Tue May 14 10:14:48 2002 Page 5

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