GCMS blank analysis for sample AE00555, Jan-Feb 2002

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Laboratory report showing GCMS blank analysis results for sample AE00555 conducted between January 29 and February 1, 2002.

NYC-WTC_000051512–000051530

Folder label: “GCMS X 1/9/02 A 1/29/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report - Data File : C:\MSDCHEM\1\5973N\O2JAN29\0109B.D Vial: 1 Acq On : 29 Jan 2002 10:31 am Operator: Sample : lab blank 1/9 Inst : Instrumen Mise : January 29, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\l-..\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 1 Butanoic acid, methyl ester... Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T. 3.60 0.12 ug/L 51376 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm - CAS# Qual

1 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 83 2 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 83 3 Butanoic acid, methyl ester 102 C5H10O2 000623-42-7 83 4 Butanoic acid, methyl ester 102 C5H10O2 000623-42-7 78 Abundance Scan 20 (3.602 min): 0109B.D (-) m/z 43.10 100.00% 43 74

5000 59 87 - 49 3.50 3.60 3.70 3.80 3.90 4.00

mlz-> U 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 i ■' ■' i TTTTHH ' i' ■ ■11 ■ ■111 ■" ■ i'1" i ■ m/z 74.00 81.18% Abundance #9227: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 43 74

.... .............. ... 5000 3.50 3.60 3.70 3.80 3.90 4.00 59 87 m/z 71.10 72.73% 69 102 miz-> + ■ ■ ।11■ ■ i ■ ‘'11 ...... I i1111 r ................ I' i"'11 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 " I " '' I' ‘'11' " I " “ I ’

Abundance #9222: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 43 74 TTuuunutauun)m—nnu‘i 3.50 3.60 3.70 3.80 3.90 4.00 5000 m/z 41.10 33.37% 59 87

33 102 Iho,,,..... +r trig...... 1' i'" ' i ’ " ' i11" i'1" i1 m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 ... M । , ,, i । , i , . । I i r. I', i i । । Abundance #9217: Butanoic acid, methyl ester 43 74 3.50 3.60 3.70 3.80 3.90 4.00 m/z 59.10 26.67%

5000 27 59 87 33 102 " r ■ " i ' । ।111 • 1111111 +T 111 ’' I " " I +t i " " r ■ " i' " i" " i'" ' i ’1" r ' " r T’ETTr ‘l " I " "I in r| rrv.|i I‘I m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 3.50 3.60 3.70 3.80 3.90 4.00

109B.D SCAN508.M Wed Jan 30 09:02:32 2002 Page 3

NYC-WTC_000051517

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