GCMS analysis results for sample AE00839, Feb 4 2002

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Laboratory report showing GCMS analysis of sample AE00839 including surrogate recovery and unknown compounds.

NYC-WTC_000052088–000052107

Folder label: “GCMS X 1/11/02 A 1/31/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C : \MSDCHEM\1\5973N\02JAN31\00839. D Vial: 3 Acq On : 31 Jan 2002 4:21 pm Operator: Sample : 508 scan Inst : Instrumen Mise : January 31, 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 2 3-Penten-2-one, 4-methyl- Concentration Rank 5

R.T. EstConc Area Relative to ISTD R.T. 5.06 0.28 ug/L 152195 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 3-Penten-2-one, 4-methyl- 98 C6H10O 000141-79-7 91 2 3-Penten-2-one, 4-methyl- (CAS) .. . 98 C6H10O 000141-79-7 90 3 2(3H)-Furanone, 5-methyl- (CAS) .. . 98 C5H602 000591-12-8 90 4 3-Penten-2-one, 4-methyl- (CAS) .. . 98 C6H10O 000141-79-7 87 Abundance Scan 148 (5.063 min): 00839.D (-) m/z 83.10 100.00% 55 83

98 5000 43 39 4.80 5.00 5.20 5.40 i 51 1 79 01 i. .i ...... ini, ।' 1111' 11' " r ■ " r "' r 1 HTTTT + m/ z 55.10 84.38% n/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Abundance #7020: 3-Penten-2-one, 4-methyl- 55 83

98 43 ON fr i r ••( ■••• i i i 5000 4.80 5.00 5.20 5.40 27 m/z 98.10 50.62%

m/z-> 37 mTTTTTTH 01 1' i'' ■11' ______ 67 —lL 79 1" ' i1' " i'1" r ' " r "11 ................ 110 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Abundance #7023: 3-Penten-2-one, 4-methyl- (CAS) $$ Mesityl oxide 55 83 ___ __________ ■ < 1 i ■ > ■ > । ■ > » * । 43 98 4.80 5.00 5.20 5.40 5000 m/ z 43.10 27.64%

I 511 , 67 79 0 '11'' " r ■ " r " ' r ---HH I" 11" I "■' i■ ■ ■■ i""l■ ■ 'i1" 1 r " ' i" 4 ti/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Abundance #6784: 2(3H)-Furanone, 5-methyl- (CAS) $$ 5-M ETHYL-2-OXO-2... 5)5 AAAAA WAMAr 5.20 5.40 4.80 5.00 m/ z 39.10 18.81% 98 5000 83

37 50 69 0 I" " I ’ ’’’1’44’1 L Im....... 11.......... tmmTT 4PP .... .............. 4... Tl/Z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 4.80 5.00 5.20 5.40

30839.D SCAN508.M Fri Feb 01 09:19:13 2002 Page 4

NYC-WTC_000052095

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