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GCMS blank analysis results, Feb 25-26 2002

Machine-extracted title · confidence 90%

Laboratory report showing GC/MS analysis results for a blank sample testing specific compounds on February 25 and 26, 2002.

NYC-WTC_000003425–000003443

Folder label: “GCMS X 1/20/02 A 2/25/02

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\l\5973N\02FEB25\0116B .D Vial: 1 Acq On : 25 Feb 2002 11:14 am Operator: Sample : lab blank 1/16 Inst : Instrumen Mise : February 25, 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 1 Butanoic acid, methyl ester... Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T.

3.61 0.14 ug/L 47094 1,4-Dichlorobenzene-d4 9.72

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 (CAS... 102 C5H10O2 000623-42-7 83 4 Butanoic acid, methyl ester 102 C5H10O2 000623-42-7 83 Abundance Scan 21 (3.611 min): 0116B.D (-) m/z 74.00 100.00% 43 74

5000 59 87 "11 “' ■ i " “ i “ “ i “ ■ ■ i 3.50 3.60 3.70 3.80 3.90 4.00

m/z-> 0- ■ “ i ■ ■ •11 m Tung 30 40 50 60 70 80 90 100110120130140150160170180190 200 210 207 I m/z43.10 96.20% Abundance #9223: Butanoic add, methyl ester (CAS) $$ Methyl butyrat... 74

5000 43 \ ■■■।“ mPmTATTT 3.50 3.60 3.70 3.80 3.90 4.00 87 59 m/z 71.00 71.01% 102 0-TCIp—um—ugTT -Ht mpmmpmpmpmmmmpmnpmpe niz-> 30 40 50 60 70 80 90 100110120130140150160170180190 200 210 Abundance #9227: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 43 74

3.50 3.60 3.70 3.80 390 4.00 5000 m/z 41.10 40.57% 59 87

O-pm hmprTT TIFTT ।....102 fl... |.... ।.... ।.... । .... ।.... ।.... ।.... ।.... ।... mlz~> 30 40 50 60 70 80 100 110 W 130 140150 160 170 180 190 200 210 Abundance #9222: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... '11" 43 74 3.50 3.60 3.70 3.80 3.90 4.00 m/z59.00 29.72%

5000 59 87

33 0- ■i ■i 4 , ।> ri ।....102 fl(।।।।. i.. ।.... 11... ।.... 11।i (।. • •i- * “ i •1111" “ i “ ■ • i • “ • > n/z—> 30 40 50 60 70 80 90 100110120130140150160170180190 200 210 3.50 3.60 3.70 3.80 3.90 4.00

0116B.D HP022102.M Tue Feb 26 08:30:41 2002 Page 3

NYC-WTC_000003430

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NYC-WTC_000003430Source: NYC Law Department, mirrored locally

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