GCMS analysis results, Feb 27 2002

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Gas chromatography-mass spectrometry results for sample AE01138 identifying unknown compounds and surrogates on February 27, 2002.

NYC-WTC_000003463–000003482

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\1\5973N\02FEB25\01138 .D Vial: 4 . Acq On : 25 Feb 2002 1:43 pm Operator: Sample : 508 scan 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 8 Benzene, 1,2-dimethyl- Concentration Rank 12

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

7.12 0.06 ug/L 22648 1,4-Dichlorobenzene-d4 9.72

Hit# Of 5 Tentative ID MW MolForm CAS# Qual

1 Benzene, 1,2-dimethyl- 106 C8H10 000095-47-6 56 2 cis-.alpha.,.beta.-Styrene-d2 $$... 106 C8H6D2 052751-11-8 4 3 Acetic acid, mercapto-, methyl e... 106 C3H602S 002365-48-2 4 4 ETHYL ARSINE 106 C2H7AS 000000-00-0 4 Abundance Scan 332 (7.122 min): 01138. D (-) m/ z 91.00 100.00% 91

106 5000

86 IIIIIIIIIIIII 77 49 | 6.80 7.00 7.20 7.40 0- ■ ' i 1 1 ■ ' i ' 1 1 ' i ■ ' ' ■ i ■ ■ ■ 1 i ' ' 1 ' i 1 ' 1 ‘ i ' ■ ' 1 i 1 ' m/z 106.00 55.26% miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #10727: Benzene, 1,2-dimethyl- 91

5000 106 ■ ■ ■ । ' 1 ' i ■ ■ 1 ■ i ■ ' ■ 1 । 1 ■ 1 • । 6.80 7.00 7.20 7.40 m/z 105.10 20.96% 27 51 65 7 0- ............. I.............. ......... ....... U..... Ji 1.. . ■111'111' ‘ ■11 ’ ■ ■ ■ । ■' ■ ■ । ■ ■ ■' ।'' ■ ■ ।1''' ।'''' r1 miz-> 10 20 30 40 50 60 70 80 90। 100 110 Abundance #10367: cis-.alpha.,.beta.-Styrene-d2 $$ Benzene, ethenyl-... 106 —' ■ ■ । ■ 1 1 । ■ 1 ■' । ■ 11 1 । 1' '11 6.80 7.00 7.20 7.40 79 m/z 85.90 17.48% 5000 N NV AMy h U W AA M 1 0- mfe-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #10482: Acetic acid, mercapto-, methyl ester $$ Methyl mer... ■ 1 1 ■ TII 47 6.80 7.00 7.20 7.40 74 m/ z 77.00 13.97% 106 5000 15 59 42 33 | 0 ■ ■ i > • ■ ■ i ■ ■ ■ ■ । ■1 > ■ • i I । I'l । n"Pi r , IT In......... p 1 i 1 ■ m/z-> 10 20 30 40 50 60 70 80 90 100 110 6.80 7.00 7.20 7.40

01138.D HP022102.M Tue Feb 26 08:30:03 2002 Page 10

NYC-WTC_000003476

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NYC-WTC_000003476Source: NYC Law Department, mirrored locally

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GCMS analysis results, sample AE01139, 2,4-DDD, Feb 2002 · Box DEP Box 12

NYC-WTC_000003483

Gas chromatography-mass spectrometry analysis report for sample AE01139 detecting surrogate 2,4-DDD at 76 ug with MDL of 5.0, analyzed on 02/27/2002.

1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998