GCMS analysis sample AD26537, non-target compounds, Dec 2001

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

NYC-WTC_000031847–000031868

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

Data File C:\HPCHEM\1\DATA\DEC0 7 01\26537.D Vial: 4 Acq On 7 Dec 2001 8:51 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 10 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 2

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

7.82 7.08 ng/uL 1890050 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-Pentano: , 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 53 3 2-Pentanone, 4 - hydroxy - 4 - methyl- " "TT 116 C6H1202 000123-42-2 43 4 Acetic acid, 1,1-dimethylethyl este 116 C6H12O2 _ 000540-88-5 28 Abundance Scan 325 (7.823 mln): 26537.D (-) 43

5000 59

( 1 I JI J I r f < T T I 1168/8,8 j I I J 101 7.40 38.140 +53+ 7.60 7.80 8.00 8.20 I miz-> ............. 10 20 — 30 50 60 70 70 80 83 90 ■ ■ + — m/ z 100 110 59 .10 47.59% Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 !I8TTTPTTLT 59 7.40 7.60 7.80 8.00 8.20 27 m/ z 58.10 16.50%

miz->10 ■ < i ' • • 1 i ‘ 20 I I I1 1 30 TH 40 +49 1+! —PI 50 83 60 90 11 100 70 110 80 Abundance #64275; 2-Pentanone, 4-hydroxy-4-methyl- 43 1111 ■ 111 111 ‘ ' I ‘ ' 7.40 7.60 7.80 8.00 8.20 5000 m/z 101.05 15.39% 59 15 31 101 83 I ■ • i ■ • • ■ i ■ * ■ ■ i ' • ■ • i • ' * • I 1 1 1 1 i 1 1 1 1 i 1 1 1 । I 1 ' 1 1 I 1 1 1 1 r1 1 • 1 I 1 miz-> 10__ 20 30__ 40 50 60 70 80 90 100 110 Abundance #3245:2-Pentanone, 4-hydroxy-4-methyl- —। i . > . । . . . . ; . 43 7.40 7.60 7.80 8.00 8.20 m/z 41.10 6.80% 5000 59

miz—> -----------------I 10 20 31

30 40 3 -PPr - —14 1 l • • » » i • » » » i • ' > * । 50 60 70 80 90 * i i I 1 1 * < । 1 100 110 7.40 7.60 7.80 8.00 8.20

26537.D NP112701.M Thu Dec 13 11:27:28 2001 Page 10

NYC-WTC_000031864

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NYC-WTC_000031864Source: NYC Law Department, mirrored locally

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GCMS comments for sample AD26478 showing no non-target compounds · Box DEP Box 21

NYC-WTC_000031739

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

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