GCMS blank results for sample AE00275, Jan 2002

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Blank analysis report for GCMS of sample AE00275 showing compounds below method detection limits from January 8-10, 2002.

NYC-WTC_000051010–000051023

Folder label: “GCMS X 1/7/02 A 1/8/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C : \MSDCHEM\1\5973N\02JAN08\BLEX0107 . D Vial: 1 Acq On 8 Jan 2002 4:18 pm Operator: Sample : blank - ext IlII/QT. Inst : Instrumen Mise : January 8, 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 Furan, 2,3-dihydro-4-methyl... Concentration Rank 4 R.T. EstConc Area Relative to ISTD R.T. 4.85 0.17 ug/L 55051 1,4-Dichlorobenzene-d4 9.71

Hit# Of 5 Tentative ID MW MolForm CAS# Qual 1 Furan, 2,3-dihydro-4-methyl- (CA... 84 C5H80 034314-83-5 64 2 2-Butenal, 3-methyl- (CAS) $$ 3-... 84 C5H80 000107-86-8 64 3 2-Butenal, 3-methyl- $$ Crotonal... 84 C5H80 000107-86-8 64 4 2-Butenal, 3-methyl- 84 C5H80 000107-86-8 59 Abundance Scan 129 (4.847 min): BLEX0107.D (-) m/z 84.05 100.00% 84

55 59 5000 39 1-7-r-r 43 i 1 1 1 1 I ' 1 ' ' i ' ' 4.40 4.60 4.80 5.00 5.20 OPTPPT i1 ■111'1 ■r । ■ ■ ■ ■ । ■ ■ ■ ■ ।11 T m/z 55.10 56.88% /z—> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #3351: Furan, 2,3-dihydro-4-methyl- (CAS) $$ 4-METHYL-2,3 ... 55 84

5000 41 ---------------- 4.40 4.60 4.80 5.00 5.20 69 m/z 83.10 51.00% 44 51 | Of r 1111111" " H'' H 1 111 •1 ’ i ' 1 i ■1' ■ i ■ ■11111 — n/z-> 20 25 30 35 40 45 60 65 70 75 80 50 55 85 90 95 Abundance #3221: 2-Butenal, 3-methyl- (CAS) $$ 3-Methyl-2-butenal 84 55 i ■ ■ • ■ i ■ • ■ ■ i ■ ■ • ■ । 1 ' ' 1 i ' 1 ■ 440 4.60 4.80 5.00 5.20 5000 39 m/z 59.10 50.75% 27

m/z-> Of TTTT 20 ■ i ■ I ■ ■ i ■ ■ ■ ■ i ■ I ■

25 30 -p 44 H I —mmP 51 I

35 40 45 50 55 60 65 70 75 80 85 69

90 95 Abundance #3222: 2-Butenal, 3-methyl- $$ Crotonaldehyde, 3-methyl- $... 84 .... A.../........ . 4.40 4.60 4.80 5.00 5.20 55 m/z 39.10 40.78% 39 5000 27

m/z-> 0 TT-p-r-rr-p- TTTTTT 20 25 30 35 p 40 44

45 —M51 I H mmmmP— 50 55 60 65 69

70 75 80 85 90 95 440 4.60 4.80 5.00 5.20

3LEX0107.D SCAN508.M Wed Jan 09 15:08:05 2002 Page 4

NYC-WTC_000051016

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NYC-WTC_000051016Source: NYC Law Department, mirrored locally

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