GCMS analysis results, sample AE03616, March 2002

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Gas chromatography-mass spectrometry analysis of sample AE03616 performed on 3/28/2002, detecting other unknown compounds with surrogate 2,4-DDD at 5.0 µg detection limit.

NYC-WTC_000037780–000037799

Folder label: “GCMS X 2/19/02 A 3/8/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02MAR08\03616.D Vial: 6 Acq On : 8 Mar 2002 7:42 pm Operator: Sample : 508 scan Inst : Instrumen Mise : March 8, 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 10 Cyclopentanol (CAS) $$ Hydr... Concentration Rank 13 R.T. EstConc Area Relative to ISTD R.T. 9.96 0.08 ug/L 50054 1,4-Dichlorobenzene-d4 9.71 Hit# Of 5 Tentative ID MW MolForm CAS# Qual

1 Cyclopentanol (CAS) $$ Hydroxycy... 86 C5H10O 000096-41-3 9 2 Methane, isocyanato- (CAS) $$ Me... 57 C2H3NO 000624-83-9/9 3 Methane, isocyanato- $$ Isocyani... 57 C2H3NO 000624-83-9 9 4 Hexane, 2,2,5,5-tetramethyl- 142 C10H22 001071-81-4 9 Abundance Scan 583 (9.955 min): 03516. D(-) m/z 57.00 100.00% 57

5000 41 119 - ! । 4 A । r i- A AA — |.............. 86..................... | 9.60 9.80 10.00 10.20 miz-> o! ■ * i 1 ‘ 1C 20 30 40 +51 ■ i ‘ ‘ • i • ■ • ' i ■ I 50 60 70 80 90 100 1i0 120 m/z 56.00 37.34% Abundance #4095: Cyclopentanol (CAS) $$ Hydroxycyclopentane $$ Cyclo... 57

5000 TI IT 1 > TTT TT "n • । । । TT 44 960 9.80 10.00 10.20 m/z 41.10 34.98% 27 ■> 68 86 01 ----- 4 — ----- miz-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #481: Methane, isocyanato- (CAS) $$ Methyl isocyanate $$ J... 57 9.60 9.80 10.00 10.20 5000 m/ z 43.10 18.64%

miz-> 15 27 I i i i i38 01 ■ ■ i ■ 1 ‘ ' i ‘ ■ 1

Abundance 10 20 30 44 i-| i i । i । । r 40 50 I 60 70

57 80 90 100 110 #480: Methane, isocyanato- 8$ Isocyanic acid, methyl ester... 120 u . 1 9.60 9.80 10.00 10.20 ‘tor m/z 118.90 15.45% 5000

27 15 |, 38 44 । 0 ■ ■ i ■ । t । । ।i । । TI 11 • ‘ • i • •«• । • • • • । • • • • । ■ i ■ ■ i > • > • TTT 1188 ‘ ‘ J * ’ I ’ ’ ’ ’ I ‘ miz-> 10 20 30 40 50 60 70 80 90 100 110 120 9.60 9.80 10.00 10.20

03516.D HP022102.M Fri Mar 15 10:09:36 2002 Page 12

NYC-WTC_000037795

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NYC-WTC_000037795Source: NYC Law Department, mirrored locally

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GCMS analysis results for sample AE03617, March 28, 2002 · Box DEP Box 23

NYC-WTC_000037800

Laboratory report detailing gas chromatography-mass spectrometry analysis of sample AE03617 conducted on March 28, 2002.

1 shared topics · Same agency, volume and box · similarity 0.999