GCMS analysis results for sample AD31643, Jan 28 2002

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Laboratory report showing GCMS analysis of sample AD31643 including unknown compounds and surrogate recovery data.

NYC-WTC_000049975–000049989

Folder label: “GCMS X 1/3/02 A 1/17/02”

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NYC 9/11 Public Portal Document ulDLary searcI Lopoura KeporL Data File : C:\MSDCHEM\1\5973N\O2JAN17\31643.D Vial: 3 • Acq On : 17 Jan 2002 4:29 pm Operator: Sample : 508 scan Inst : Instrumen Mise : January 17, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 4 Butanoic acid, 2-methyl-, m. . Concentration Rank 7 R.T. EstConc Area Relative to ISTD R.T. 4.63 0.13 ug/L 45239 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 23 2 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 23 3 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 23 4 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 23 Abundance Scan 110 (4,630 min): 31643.D (-) m/z 71.10 100.00% 41 57 71 88

5000

101 I ■ ' ■ ' I ‘ ‘ 49 4.20 4.40 4.60 4.80 5.00 01 t.... 1.... 1.... I. ' I “ ' 1 1n f ‘ ■ i ‘'1 ‘I‘' ‘ I'1 ‘ ■I'‘ “ I ' " ■I ‘‘11' ‘1 ‘ I “' 11 ‘" I ‘ m/z 41.10 90.66% miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110 Abundance #16439: Butanoic acid, 2-methyl-, methyl ester (CAS) $$ Me... 57 88

5000 41 4.20 N/, ) MMA.A 4.40 A\ 4.60 4.80 5.00 101 m/z 88.10 86.34% 69

nfe-> 01TI | I I I I I I | 1 I I ! ! I | 1 I | I> | Hmmmm 1-rrp-rrrp- 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110 Abundance #16434: Butanoic acid, 2-methyl-, methyl ester $$ Butyric... 57 88 ] • ■ • ' | 4 • • » f ■ • • • J ■ • J > | ' • 4.20 4.40 4.60 4.80 5.00 5000 m/z 57.10 80.11% 27 101 69 01 —’’’’’11 ’I—M1B0——B—8841 - + +] n/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110 Abundance #16438: Butanoic acid, 2-methyl-, methyl ester 57 4.20 4.40 4.60 4.80 5.00 88 41 m/z 43.10 48.89% 5000

101

m/z—> 01 . 74 ......... ...................... 4 11 k. ■, (. i. < j 11..!.... ।. 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 1 4.20 MA NA k.AA 4.40 4.60 4.80 5.00

31643.D SCAN508.M Tue Jan 22 08:37:13 2002 Page 6

NYC-WTC_000049984

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GCMS analysis results for sample AD31672, Jan 28 2002 · Box DEP Box 28

NYC-WTC_000050039

Laboratory report showing GCMS analysis of sample AD31672 including unknown compounds and surrogate recovery data.

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