GCMS blank analysis results for sample AE03184, March 2002

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Laboratory report documenting a GCMS blank test for sample AE03184 conducted on March 6, 2002.

NYC-WTC_000006026–000006044

Folder label: “GCMS X 2/12/02 A 3/01/02”

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NYC 9/11 Public Portal Document ULJLCLY ocaj.cn C • mp• mm ECpOL L

Data File : C:\MSDCHEM\l\5973N\02MAR01\0212B.D Vial: 1 Acq On : 1 Mar 2002 10:18 am Operator: Sample : lab blank 2/12 Inst : Instrumen Mise : March 1, 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 4 Butanoic acid, 2-methyl-, m.. Concentration Rank 7

R.T. EstConc Area Relative to ISTD R.T. 4.64 0.09 ug/L 42619 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 64 2 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 000868-57-5 64 3 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 000868-57-5 64 4 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 50 Abundance Scan 112 (4.638 min): 0212B.D (-) m/z 57.10 100.00% 57 88 41

5000 51 71 101 ....... .. 1..... 4.20 4.40 4.60 4.80 5.00 0- 1 1 i ■ ■ ■ 1 1 1 1 1 ■ i 1 1 1 1 i ‘ .1 ' Il। ' ,1 ' II■ ... ..... । ' 1 1 ' । ' 1 * ' । ■ i 1 ' 1 ■ i ■ 1 1 ■ i ' 1 ■ 1 i 1 1 m/z 88.00 86.31% m/z-> 10 20 30 40 50 60 70 90 100 80 110 120 Abundance #16436: Butanoic acid, 2-methyl-, methyl ester (CAS) $$ Me... 57 88

5000- i ■ ■ ■ ■ i ' ■ 1 ■ i 1 1 1 ' I 1 1 1 1 I ' 1 ' 4.20 4.40 4.60 4.80 5.00 27 101 m/ Z 41.10 72.15%

m/z-> 33 01 > ■ । ■ ■ ■ ■ । • > • 11 ■ ■ ■ ■ ■ । ■ ■ ■ ■ । ■ 1 10 20 30 40 50 69 i 'I1 1 1 1 । 1 1 1 1 । 1 60 70 80 + 90. 100 110 116120 I 1 1 ■ ■ i 1 1 ■ ■ i ' ' ' 1 i 1 '

Abundance #16434: Butanoic acid, 2-methyl-, methyl ester $$ Butyric ... 57 88 —AAAA 4.20 4.40 4.60 4.80 5.00 5000 m/z 85.10 39.89% 27 101 69 A m/z-> 0. ■ । 10 . 20 । . ■ ' 1 I ■ ■ ■ ' i ' 1 r ' i ' 1 30 40 50 pooipo.... 60 70 80 fOBUUTTTT 90 100 110 120 Abundance #16440: Butanoic acid, 2-methyl-, methyl ester (CAS) $$ Me... 57 88 4.20 4.40 4.60 4.80 5.00 m/z 43.10 32.78% 5000 101 74 27 15 ......... I.......... I............... 0- • ■ । ■ • ■ ■ । । ’ 41*1’I’’ I....... I , ■ । > > ■ 'i । 1 1 I ' ' j___________ i 11 11 i +T 116 ■' r1 । i-i । । । \ .।/ f A‘ । A■ Ar ■ ■ MWw/WA WA ।1111r11 '11111 m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 4.20 4.40 4.60 4.80 5.00

212B.D HP022102.M Mon Mar 04 12:32:45 2002 Page 6

NYC-WTC_000006034

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NYC-WTC_000006034Source: NYC Law Department, mirrored locally

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NYC-WTC_000006126

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