GCMS DFTPP calibration report, Feb 5 2002

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Chromatogram and method report for DFTPP calibration verification conducted on February 5, 2002.

NYC-WTC_000004770–000004933

Folder label: “GCMS X 2/1/02 A 2/5/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\5973N\02FEB05\30648A.D Vial: 5 Acq On 5 Feb 2002 2:03 pm Operator: Sample : 508 scan; re-ext Inst : Instrumen Mise : February 5, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP020702.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 10 R.T. EstConc Area Relative to ISTD R.T. 3.92 0.07 ug/L 53456 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual

I ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 2 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 83 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 43 4 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 40 Abundance Scan 48 (3.922 min): 30648A.D (-) m/z 75.10 100.00% 75

5000 87 55 _........................ —er Pi ' ■ ■ i ■ ■ ■ ■ i 1 1 1 1 i 1 1 1 1 i 41 47 71 84 3.60 3.80 4.00 4.20 On ----- ..... ’ i" " 111 " 111" i" " 111" m/z87.10 41.82% nz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

5000 87 TP ' i ' ■ ' ■ i 1 1 1 ' r 1 1 I 3.60 3.80 4.00 4.20 55 m/z 55.10 25.25% 29 5941 47 71 1111111." 11". 1111. |. L > j >"' 0b r '1 ' i " '1 1 1gT ..... nIpi 1 . ... nfz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17846: Propane, 1,1-dimethoxy-2-methyl- 75 ----------------- 3.60 3.80 4.00 4.20 5000 m/z 47.10 12.82% 87 55

niz-> 5 Oh 31 | ■ ■ • ■ | • • > • | 1 1 > • | IT' ■ | I > ■ > | I 1 1 1 | 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 43414 59 71 1" 11" " 11" 111" 1 hnijimnip .. AWo Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... I ‘ 1 1 ■]■•*■ I .... I ...■I 75 3.60 3.80 4.00 4.20 m/z 41.10 9.61% 5000 87 15 55 27 31 47 59 71 , MA/ A, A , / | A Oh " i" " ■ • i " HH mmm—m — 111 ""I" TBT n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

30648A.D SCAN508.M Thu Feb 21 10:19:04 2002 Page 4

NYC-WTC_000004921

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