GCMS analysis results for sample AD27986, Jan 2002

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Laboratory report documenting GCMS analysis of sample AD27986 conducted on January 2, 2002, noting unknown compounds and surrogate recovery.

NYC-WTC_000034472–000034483

Folder label: “GCMS X 11/21/01 A 12/21/01”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\HPCHEM\1\DATA\DEC1901\27986.D vial: 27 Acq On : 21 Dec 2001 7:40 am Operator: GALOS Sample : gems unknown 11/21 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 2 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1

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

7.83 4.24 ng/uL 1373880 1,4-Dichlorobenzene-d4 11.85

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 43 3 2 - Pentanone, 4 -hydroxy- 4 -methyl - 116 C6H1202 000123-42-2 40 4 3-Hydroxy-2-pentanone 102 C5H10O2 _______ 003142-66-3 9 Abundance Scan 325 (7.825 min): 27986.D (-) m/z 43.10 100.00% 43 i ! 59 5000 T. 1. — - — 1 1' — — 101 7.40* 7-60 7.80 8.00 8.20 ....... 38.440 +53 169..... 83 ....... , 1....... m/ z I ’ ■ ' ' i ■ ■ ■ ■ i ■ ■ ' ' i ■ ■ ' 1 I1 ' ' i ■ 59.1,0 50.62% miz-> 10 20 30 50 ।60 70 80 90 100 110 Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

—IT-IT — I I I I I I I I I I 5000 59 7.40 7.60 7.80 8.00 8.20 m/z 101.05 17.10% 27

miz-> i 1 TI 11 1 ' I 1 ' ‘Tr' ‘ r * I 1 10 20 30 40 50 +48+ II.......... 83....... 60 70 80 90 .......110 100 Abundance #3245. 2-Pentanone, 4-hydroxy-4-methyl- 43 ■........................................................ — 1 7.40 7.60 7.80 8.00 8.20 5000 59 m/z 58.10 15.89%

----- 31 ' 73.83 ...... 101.... miz-> 10 . 20 30 40 50 60 70 80 90 100 110 Abundance #64275: 2-Pentanone, 4-hydroxy-4-methyl- I ’ 1 ' ' i ' ■ ■ i । < i r i TIT 4 7.40 7.60 7.80 8.00 8.20 _ rn/z 41.05 6.85% 5000 59

. m/z—> ....... ' 1 i ■ 10 15 31 ,._ ,i, ,1..... । ' ' ' i ' ■ ’ ’ i ’ ' ' 1 i 1 20 30 40 1ur. i. ' 50 Tn10n./nnm 60 70 80 83 90 101

100 110 .. —A... — 7.40 7.60 7.80 8.00 8.20

27986.D NP112701.M Fri Dec 28 09:31:50 2001 Page 2

NYC-WTC_000034481

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GCMS analysis results for sample AD28046, Jan 2002 · Box DEP Box 22

NYC-WTC_000034484

Laboratory report documenting GCMS analysis of sample AD28046 conducted on January 2, 2002, noting unknown compounds and surrogate recovery.

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