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GC/MS analysis results for sample AD22550, September 2001

Machine-extracted title · confidence 95%

Laboratory report documenting GC/MS analysis of sample AD22550 conducted on September 27, 2001, identifying unknown compounds.

NYC-WTC_000087044–000087058

Folder label: “508 Scan 9/18/01 9/27/01

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Scanned page image, NYC-WTC_000087055
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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C;\HPCHEM\l\DATA\SEP2601\22550.D Vial: 4 Acq On : 26 Sep 2001 1:12 pm Operator: GALOS Sample : GC/MS unknown Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP072501.M (RTE Integrator) Title : 208 625/TCLP calibration table 7/25/01 Cl IS 5 Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 4 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 7.96 0.66 ng/uL 99130 1,4-Dichlorobenzene-d4 12.00 Hit# of . 5 Tentative ID MW MolForm CAS# Qual

2-Pentanone, 4-hydroxy-4-methy1- 116 C6H12O2 000123-42-2 83 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 78 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 74 4 Acetic acid, 1,1-dimethylethyl este 116 C6H12O2 000540-88-5 33 Abundance Scan 341 (7.961 min): 22550.D (-) m/z 43.00 100.00% 40

5000 59

101 7.60 7.80 8.00 8.20 8.40 I'I " I “ I I I II I I 11 I u I I I I 11H 11111 I I" "I P m/z 59.10 36.27% Ti/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Abundance #64274: 2-Pentanone. 4-hydroxy-4-methyl- 4^

5000 59 7.60 7.80 8.00 8.20 8.40 m/z 58.10 19.75% 27 101

n/z-> 1"ll|.. I 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 I.. I. J r.-.. I.... I.. 1. 11.. 11

Abundance #3245: 2-Pentanone, 4-hydroxy-4-methyl- 413

7.60 7.80 8.00 8.20 8.40 5000 59 m/z 101.05 14.15%

31 101 73.|III,|,.I........ I / Ti/z-> p-TTTyTTTTpTTTjrlTTjlTT^^ M- I"" I 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 l"*'J....... t i

Abundance #64275; 2-Penlanone, 4-hydroxy-4-methyl- 413 7 60 7.80 8.00 8.20 8.40 m/z 41.00 7.66%

5000 59

15 31 101 83 . ................... Ti/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 7.60 7.80 8.00 8.20 8.40

22550.D NP072501.M Mon Oct 01 14:37:04 2001 Page 4

NYC-WTC_000087055

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Series of administrative records documenting Section 508 accessibility scans conducted at the World Trade Center site between September 18 and 27, 2001.

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