GCMS comments for sample AD26478 showing no non-target compounds

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Analysis report dated December 16, 2001, stating that mass spectrometry of sample AD26478 revealed no non-target compounds.

NYC-WTC_000031739–000031761

Folder label: “GCMS X 11/6/01 A 12/7/01”

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NYC 9/11 Public Portal Document

Library Search Compound Report t Data File . C:\HPCHEM\1\DATA\DEC0 701\26478.D Vial: 3 Acq On 7 Dec 2001 7:56 pm Operator: GALOS Sample gc/ms unknown 11/6 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 11 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 2

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

7.83 8.06 ng/uL 2353230 1,4-Dichlorobenzene-d4 11.88

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4 -hydroxy-4-methyl- 116 C6H1202 000123-42-2 59 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 53 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 43 4 Acetic acid, 1,1-dimet hyl ethyl este 116 C6H12O2 000540-88-5 28 Abundance Scan 326 (7.828 mln): 26478.D (-) m/z 43.10 100.00% 43

5000 59

101 7.40 • 7.60' 7.80 8.00 8.20 __ 381—ttI . +53+ 1 __: i._-i_ ,i_. _> Td -n-J-r . 69 83 . | ■ i 1 ■ ■ 1 i • ■ ■ ■ i ■ ■ ' 1 i 1 ■ ■ • i 1 m/z 59.10 47.30% m/z—> 10 20 30 40 50 60 70 80 90 100 110 Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 59 7.40 7.60 7.80 8.00 8.20 27 m/z 58.10 17.13% 49 1I .. 83 101 • * i * * ■ * i • > । 71 ■ i11 i I > 4 * 1 i ■ * * 1 I ‘'1 1 4 i 4 4 4 ‘ i 4 4 1 4 i 4 miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #64275; 2-Pentanone, 4-hydroxy-4-methyl- 43 i ■ 1 ■ * i ■ ■ i ■ ' ' • i • ■ 7.40 7.60 7.80 8.00 8.20 5000 m/z 101.05 16.30% 59 15 31 101 83 11/17111188 । I.... 11T2/*112/**18—II/T0BnnndB.T 1' । 1_ ____ ■ • ■ ■ । ■ miz—> Abundance 10 20 30 40 50 60 70 80 #3245: 2-Pentanone, 4-hydroxy-4-methyl- 43 90 100 110 7.40 7.60 48.00( 8.20 7.80 m/z 41.10 6.57% 5000 59

31 101 ‘ 1 i ■ ■ ■ ■ i ■ ' ■ • I 1 1 ' 1 i 1 —4 73 83 11 ■ ■ ■ ■ । ■ TTTTTr i ■ ■ • ' i ■ 4 ■ ' i • • • • i । * I * * * ‘ I miz-> 10 20 30 40 50 60 70 80 90 100 110 7.40 7.60 7.80 8.00 8.20

26478.D NP112701.M Thu Dec 13 11:22:28 2001 Page 11

NYC-WTC_000031757

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GCMS analysis sample AD26537, non-target compounds, Dec 2001 · Box DEP Box 21

NYC-WTC_000031847

Mass spectrometry analysis of sample AD26537 found no non-target compounds present, Dec 16, 2001.

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