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GCMS analysis results, sample AE08956, April 2002

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Gas chromatography-mass spectrometry analysis of environmental sample AE08956 conducted on April 29, 2002, detecting unknown compounds and 2,4-DDD surrogate at 79 micrograms.

NYC-WTC_000049288–000049298

Folder label: “GCMS X 4/15/02 A 4/22/02

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NYC 9/11 Public Portal Document

Library Search Compound Report • Data File : C:\MSDCHEM\1\DATA\042202\8956.D Vial: 18 Acq On : 23 Apr 2002 1:06 am Operator: Bohlk Sample : SAMPLE 8956 4/15/02, FB Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1\5973N\5080402BBC.M (RTE Integrator) Title : Quantitation For Method 508gcscan Library : C:\DATABASE\WILEY7N.L Peak Number 3 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.50 18.41 ug/L 1459080 1,4-Dichlorobenzene-d4 9.41 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4-hydroxy-4-methyl-... 116 C6H12O2 000123-42-2 83 3 2-Pentanone, 4-hydroxy-4-methyl-... 116 C6H12O2 000123-42-2 83 4 2-Pentanone, 4-hydroxy-4-methyl-... 116 C6H12O2 000123-42-2 64 Abundance Scan 412 (5.500 min): 8956.D (-) m/z 43.10 100.00% 43 59

5000

101 T T T T 5.20 5.40 5.60 5.80 Ol mmm +51 69 83 91mmmpmp • i •" • i ’ ’ ■ i' m/z 59.10 76.55% miz-> 10 20 30 40 50 I60 70 80 90 100 110 120 130 Abundance #16600:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 T T T T 59 5.20 5.40 5.60 5.80 m/z 58.10 29.51% 15 101 31 Of vrgrf > I +4+451+ I।।।iii।j83 .I .... । I’ m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #16606: 2-Pentanone, 4-hydroxy-4-methyl- (CAS) $$ Diaceton... 43 f I " rPTr • • i • ■ ■ ■ i • • 5.20 5.40 5.60 5.80 5000 m/z 101.10 21.32% 59

I 101

/z-> Ot • • i “ ■ • i pirp Ji +51+ .......... 83..... 7 ............. 133 11;r...।... 111...(.... ( .... P ... ।. 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #16593:2-Pentanone, 4-hydroxy-4-methyl- (CAS) $$ Diaceton... FTi‘i i 43 T T T 5.20 5.40 5.60 5.80 m/z 41.10 6.61%

5000 59

m/z—> 0 ■ ■ i• ■ 10 —4+51+ 20 31

30 40 50 TT 60 70 .।।।111. — 83 101 , | 70 80 90 100 110 120 130 1 ’t’TT T’ M5.20 5.40 5.60 5.80

39S6.D 5080402BBC.M Fri Apr 26 12:16:26 2002 Page 5

NYC-WTC_000049297

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NYC-WTC_000049297Source: NYC Law Department, mirrored locally

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