GCMS blank analysis results, sample AE10809, May 2002

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Gas chromatography-mass spectrometry blank analysis conducted May 17, 2002 testing for semivolatile organic compounds with all results below method reporting limits.

NYC-WTC_000045936–000045963

Folder label: “GCMS X 5/7/02 A 5/15/02”

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\1\DATA\051402\0507LB.D Vial : 16 Acq On : 15 May 2002 2:34 am Operator: Mclean Sample : 5/7 kb Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title 508 Modified GC/MS scan Library C:\DATABASE\NIST98. L ********************************************************************* Peak Number 13 Plumbane, triethylmethyl- Concentration Rank 10

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

33.17 1.06 ug/L 484009 Perylene-dl2 34.70

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Plumbane, triethylmethyl- 310 C7H18Pb 001762-28-3 9 2 Gibb-3-ene-1,10-dicarboxylie aci... 344 C20H24O5 005508-47-4 9/ 3 2-0xo-4-phenyl-6-(4-chlorophenyl... 282 C16H11C1N2O 024030-13-5/7 4 5-[[[3,4-Dichlorophenyl]imino]me... 281 C11H9C12N5 1000212-35-5 7 Abundance Scan 5121 (33.168 min): 0507LB.D (-5119) (-) m/z 73.10 1400.00% 73 281

221 133 5000 149 ---444M—AA4p

0- 49 I r 1111 I ’ ’'' I'1 '' I I..... r 11111 > ■ ■ ।'1'' i ‘1 ‘1111'1111111 369 1 ■ I'1 ' -11'111 341 1, 32.80 33.00 33.20 33.40 33.60 m/z 281.05 95.21%

A m/z-> 40 ।60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #128138: Plumbane, triethylmethyl- 281 223

5000 2C7 32.80 33.00 33.20 33.40 33.60 70 | | 252 m/z 221.10 65.43%

m/z-> o1 40 4 60 96 i'111 r 11' i 133 1-111111 r 1111 L ,4. i'i (80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 I > 4 I 'I rr If I I I I [ I I 1 0 l'l

Abundance #97331: Gibb-3-ene-1,1 O-dicarboxylic acid, 2,4a-dihydroxy-... 281 ' I 1 ’ ’ ' I ' 1 1 1 I ' ' ’ 222 32.80 33.00 33.20 33.40 33.60 5000 91 m/z 74.00 64.36% 41 155 239 65 129 193 312 I m/z-> 0 40 Jl Ldok.L AaukH . a5u 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 344 r’u’e I I I I ' I I I I

Abundance #97369: 2-Oxo-4-phenyl-6-(4-chloroptienyl)-1,2-dihydropyrim... ' I 1 ' I * > I 1 1 » 1 I ’ 281 32.80 33.00 33.20 33.40 33.60 m/Z 133.00 57.45%

5000 I 3,6 52 77 102 123 141 175 204 247 0 11 I l h ll TTPPT TTTTT — i1'1' I 1 I ' 1 j 1 1 1 1 m/z--> 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 32.80 33.00 33.20 33.40 33.60

0507LB.D 050102.M Thu May 16 12:35:59 2002 Page 16

NYC-WTC_000045955

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