GCMS blank results for sample AE03614, March 28, 2002

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Laboratory report documenting GCMS analysis of a method blank for sample AE03614 to verify analytical system cleanliness.

NYC-WTC_000037740–000037759

Folder label: “GCMS X 2/19/02 A 3/8/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02MAR08\03614.D Vial: 4 Acq On : 8 Mar 2002 6:03 pm Operator: Sample : 508 scan Inst : Instrumen Mise : March 8, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP022102 .M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 4 2,2-Dimethoxybutane Concentration Rank 4

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

4.24 0.13 ug/L 60771 1,4-Dichlorobenzene-d4 9.71

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2,2-Dimethoxybutane 118 C6H14O2 003453-99-4 78 2 2,2-dimethoxybutane 118 C6H14O2 003453-99-4 74 3 Thiazole, tetrahydro- 89 C3H7NS 000504-78-9 53 4 Methanethioamide, N,N-dimethyl- 89 C3H7NS 000758-16-7 42 Abundance Scan 77 (4.243 min): 03514.D (-) m/z 87.10 100.00%

5000 43 55 87 M" । • ■ ■ ■ । ■ ■ ■ ■ । ‘ ■ i11'11 ■ ■ ■ 71 103 3.80 4.00 4.20 4.40 4.60 miz-> 0+ I “ “ I“ "I “ " I ‘' 20 25 30 35 40 -HI 49 - 4 45 50 55 60 65 70 75 80 85 90 95 100 105 110 ■“ 'I'' m/z 89.00 84.04% Abundance #17888:2,2-Dimethoxybutane 55 87

5000 ■ ■ i ■ ■ ' • i ■ ■ ■ _ 45 380 4.00 4.20 4.40 4.60 27 40 m/z 55.00 58.57% 92 103 33 Of 1’1’11117 '■I “i' I j “ • »P ‘“I ““I ‘ ’“I + H • • । ■ ■1 ■ । ■ ■ • • । ■1 miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110 Abundance #17889:2,2-dimethoxybutane 87 55 ----- 3.80 4.00 4.20 4.40 4.60 5000 m/z 43.05 57.37% 45 27 92 103 33 Hmmmmm H " i"'■11•'1111 01 ■ ■ 11 ■ ■ • i1 I I j THIur I 111 1 TH-rp-rrT miz->___ 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 Abundance ~ #5046: Thiazole, tetrahydro- 89 AAAM 3.80 4.00 4.20 4.40 4.60 m/z 45.10 ' 17.11% 43 5000

0 | ‘ ‘ | ■ ■ •' | TT I'I' IHlll I “ “ 11 ’ mpmmp i 4 ■ ' • i ‘ 1 ■ ■ i ■ ' ■ ■ i ■ ■ ' 1 i ■ ■

m/z—> 202530 35 404550556065 70 75 80 85 90 95 100 105110 3.80 4.00 4.20 4.40 4.60

03514.D HP022102.M Fri Mar 15 10:09:23 2002 Page 6

NYC-WTC_000037749

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NYC-WTC_000037749Source: NYC Law Department, mirrored locally

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