GCMS blank analysis results, Feb 25-26 2002

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Laboratory report showing GC/MS analysis results for a blank sample testing specific compounds on February 25 and 26, 2002.

NYC-WTC_000003425–000003443

Folder label: “GCMS X 1/20/02 A 2/25/02”

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\l\5973N\02FEB25\0116B.D Vial: 1 . Acq On : 25 Feb 2002 11:14 am Operator: Sample : lab blank 1/16 Inst : Instrumen Mise : February 25, 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 3 Toluene Concentration Rank 4

R.T. EstConc Area Relative to ISTD R.T.

4.37 0.10 ug/L 32682 1,4-Dichlorobenzene-d4 9.72

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Toluene 92 C7H8 000108-88-3 78 2 Toluene 92 C7H8 000108-88-3 78 3 Benzene, methyl- (CAS) $$ Toluen... 92 C7H8 000108-88-3 78 4 Benzene, methyl- (CAS) $$ Toluen... 92 C7H8 000108-88-3 64 Abundance Scan 88 (4,367 min): 0116B.D (-) m/z 91.00 100.00% 91

5000 / ■ i 1 • ■ ■ i ■ ■ ‘ ’ i ■ 1 1 ' i ' ■ ‘ * I ■

44 65 207 4.00 4.20 4.40 4.60 4.80 0 mm .. 111.. । r ri. |. 1111.... ।.. i. 111 n (... ।.... (.... t.... t.. .'. ( m/ z 92.00 65.20% m/z-> 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 Abundance #5541: Toluene 91

5000 ■........................... 111‛E‛IS 4.00 4.20 4.40 4.60 4.80 m/z 65.00 9.98% 65 37 51 l 0 gosnj sind . >. fl 11. ।.... ।... I > 111.11 n 111.111 H... ।.... t....!.... ।. i.. ।. i.. | > h . I.... ।... m/z-> 30 40 50 60 70 80 90 100110120 130 140150 160170180 190 200 210 Abundance #5538: Toluene 91 • i ■ • ■ ■ i ■ ■ ■ ■ I ■ ■ ■ ■ i ■ ■ • ■ i ■ 4.00 4.20 4.40 4.60 4.80 5000 m/z 63.00 7.13%

51 65 38 .I il 0 -HHm n/z-> 30 40 50 60 70 80 80 100 110 120 130 140 150 160 170 180 190 200 210 Abundance #5540: Benzene, methyl- (CAS) $$ Toluene $$ CP 25 $$ Methy... • i ■ • ' ■ i ‘ ■ 1 1 1 1 1 1 1 ‘ 91 4.00 4.20 4.40 4.60 4.80 m/ z 44.00 6.93%

5000

51 65 0 Hm bpmmpmmmnpmmmmmmmpmt ■ I ' 1 • ‘ I ‘ ‘ ITT T8.8 m/z—> 30 40 50 60 70 80 90 100110120130140150160170180 190 200 210 4.00 4.20 4.40 4.60 4.80

0116B.D HP022102.M Tue Feb 26 08:30:41 2002 Page 5

NYC-WTC_000003432

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