GCMS analysis comments, sample AD29028, Dec 2001

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Laboratory report noting detection of bis(2-Ethylhexyl)phthalate in sample AD29028 analyzed on December 18, 2001.

NYC-WTC_000035990–000035999

Folder label: “GCMS X 11/30/01 A 12/11/01”

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Data File : C:\HPCHEM\1\DATA\DEC1001\29028.D Vial: 32 Acq On : 11 Dec 2001 6:55 pm Operator: 209 GALOS Sample : gc/ms scan 11/30a Inst : GC/MS.209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 1 Silane, tetramethyl- Concentration Rank 1

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

7.61 3.34 ug/1 906263 1,4-Dichlorobenzene-d4 11.67

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Silane, tetramethyl- 88 C4H12Si 000075-76-3 32 2 N-Ethyl fo: mamide 73 C3H7NO 000627-45-2 9 3 1,3-Dioxo ane, 2-methyl- 88 C4H802 000497-26-7 5 4 Ether A 74 C4H1O0 000060-29-7 4 Abundance Scan 279 (7.606 mln): 29028.D (-) m/z 73.00 100.00% 73

5000 43 । .... t । i-i r । । । । । । 87 103 7.20 7.40 7.60 7.80 8.00 50 55 0 • 110 38,444 . T rrT . ■ 67,1■ TIT l■ » I i ■ ■ ■ ■ i • • i • m/z 43.05 25.75% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #62932: Silane, tetramethyl- 73

5000 • i ■ ■ ■ ■ i • ■ 7.20 7.40 7.60 7.80 8.00 45 m/ z 1 5 ................, ,153 59 ........ Il 1 ■ i ■ ■ ■ ■ I 1 1 1 • i ■ • • ■ i ' * ■ ' i ■ ■ ■ 1 i » ■ • ■ ( । । 88 ■ ■ i ■ ■ ■ ■ i • ■ ■ ’ i ' ■ ' 1 i ' miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #292: N-Ethylformamide 30 73 T Tu I ' T 7.20 7.40 7.60 7.80 8.00 5000 m/z 9.54% 44 58

15 1MIOIIITTOTI* miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #62902:1,3-Dioxolane, 2-methyl- TTITTT 1 r 1 1 1 TTTi PT 73 7.20 7.40 7.60 7.80 8.00 m/z 71.0.0 6.22% 5000 43 58 27 87 „ ................._.................... ‘ • i ■ • ■ ■ i • ■ ‘ • i ■ ‘ ' 1 I 1 'I > • • ■ i ■ 1 ‘ ‘ i ' ' ‘ ‘ i ‘ ‘ ■ i ■ • 1 ■ i ' | i » t "88 li i | : TT3 | if f S8.T ‘ ‘ I ‘ ‘ m/z—> 10 20 30 40 50 60 70 80 90 100 110 7.20 7.40 7.60 7.80 8.00

29028.D GCMS1126.M Wed Dec 12 15:49:33 2001 Page 1

NYC-WTC_000035997

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GCMS analysis comments for sample AD29024, Dec 18 2001 · Box DEP Box 22

NYC-WTC_000035909

Lab notes for sample AD29024 indicate detection of bis(2-Ethylhexyl)phthalate and no unusual compounds.

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