GCMS calculation results for sample AE11602, May 2002

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GCMS analysis report for sample AE11602 dated June 4, 2002, documenting unknown compounds and surrogate recovery.

NYC-WTC_000013921–000013942

Folder label: “GCMS X 5/24/02 A 5/28/02”

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NYC 9/11 Public Portal Document Llprary searcn compound keporC Data File : C:\MSDCHEM\l\DATA\052802\11602.D Vial: 8 Acq On : 28 May 2002 8:00 pm Operator: McLean Sample : 5/24 ad re-ext Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integfator) Title : 508 Modified GC/MS scan Library : C: \DATABASE\NIST98 . L ********************************************************************* Peak Number 10 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.93 12.36 ug/L 8108470 1,4 -Dichlorob'enzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 86 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 72. 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 64 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 36 Abundance Scan 485 (5.929 min): 11602.D (-478) (-) m/z 43.10 100.00% 43

5000 59 ........ ... ....... 101 5.60 5.80 6.00 6.20 83 ot 112011001371153/ Trrr67rFLTi , | 117 125 ' i 1 ' 1 '’i1 ■ * ■ [ • > * < i i * i • i * * m/z 59.10 34.71% mfz~> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43 . y. i . । । 5000 59 5.60 5.80 6.00 6.20 m/z 58.10 21.30% 15 101 25,31 37, |, miz-> 01 '11 ‘4 tTT 10 20 30 40 50 +53+ ' I ■ ■ ■ ■ i ■ • * • i 60 70 80 83 1 ■ i • ■ - 90 100 110 120 130 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 5000 59 m/z 101.10 13.15%

25,31 ■ 37;, 93 S3 — 93 101 | miz-> 01 "11" ‘ 1111 10 20 30 rr’i TTT4 I ■ ■' ■ i ■ ■ ■ ■ i ■1 ■ • i ■ ■ ■1 i1 ‘ 1 ■ i ‘ 1 • • i • • ■ • i ■ ■ 40 50 60 70 80 90 100 110 120 130 . y I . I . ... I Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 4 5.60 5.80 6.00 6.20 m/z 41.10 5.92%

5000 59 101 0 Agag 27 37 112111 Ml +53, 67 77 83 91 , | I ■ 11 ■ i1 ■ •' i ■ • ■ ' i ■ • •1 j 1 1 ■ ■ i ■ 1 ■ • i ■ ■ ■ ■ i ■ ‘ 1 ■ । ■ ■ ■ ■ । • ■ ■ ■ । ■ ■ ■ ■ । ‘1 • । m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20

11602.D 052202.M Thu May 30 10:38:12 2002 Page 13

NYC-WTC_000013938

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NYC-WTC_000013938Source: NYC Law Department, mirrored locally

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