GCMS unknown compounds report, sample AD31254, Feb 2002

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Laboratory report for DEP sample AD31254 identifying unknown compounds and surrogate recovery results from February 25, 2002.

NYC-WTC_000016480–000016495

Folder label: “GCMS X 12/24/01 A 1/9/02 2/15/02”

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NYC 9/11 Public Portal Document

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Data File : C:\HPCHEM\l\DATA\JAN0802\31254.D Vial: 12 Acq On : 10 Jan 2002 12:31 am Operator: 209 GALOS Sample : gems scan 12/24 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0103.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.

7.47 2.81 ug/1 734458 1,4-Dichlorobenzene-d4 11.53

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Silane, tetramechyl- 88 C4H12Si 000075-76-3 9 2 3-Pentanol, 3-methyl - 102 C6H140 000077-74-7 9 3 Butane, 2-methoxy-2-methyl- 102 C6H140 000994-05-8 9 4 Pentane, 3-methoxy- 102 C6H140 036839-67-5 9 Abundance Scan 264 (7.470 min): 31254.D (-) m/z 72.95 100.00% 73

5000 43 —1 7.20 7.40 7.60 7.80 im/z-> -----PPP34 10 20 30 40'50 ,Ih1I . i 50 55 .61 67, । , । v.'i'i7 . ■ । .'i1. 60 70 80 87 90 100 103 110 m/z 43.05 31.49% Abundance ;#62932: Silane, tetramethyl- 73

5000 ' 1 ■ • i 1 r 1 "‘"I ’ 1 1 ' I 11 ' ‘TTrr 7.20 7.40 7.60 7.80 45 m/z 44.9.5 11.99% 15 1 53 59 88 ■ ' i • ' ‘ ' i ‘ ‘ i ‘ ‘ ‘ ‘ i • m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #63572: J-Pentangl. 3-methvi- 73 nma—m/m—Oum 7.20 7.40 7.60 7.80 5000 m/z 41.00 1 0.76% 55 45 87 27 • • i ■ • ■ ■ i ■ • • ■ i • ■ ■ ' i r 1 1 ' i 1 1 ■ 1 i ■ ‘ ‘ ■ i ■ ■ ■ • i ■ ■ • 1 i ‘ ' i • ■ ■ ■ i ■ m/z-> 10 20 30 40 50 60 70 80 90 100 110 ..................... .. .................................. Abundance #1761: Butane, 2-methoxy-2-methyl- 1d*n2/—dnn——IB—mT0/B/d 73 7.20 7.40 7.60 7.80 m/z 71.00 5.94% 5000 55 87 45 27 33 I ‘*1/*/A/*/4‘**I*‘‘I‘‘I i i'r’i'i r i r i । i 1 ' ’ i ‘ ■ i ■ 1 ■ ' I 1 ' 1 ‘ I ' ■ ■ i ■ • • * i * ■ ■ ‘ । f ■ ।1 m/z~> 10 20 30 40 50 60 70 80 90 100 110 7.20 7.40 7.60 7.80

31254.D GCMS0103.M Wed Feb 06 11:22:33 2002 Page 1

NYC-WTC_000016487

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NYC-WTC_000016487Source: NYC Law Department, mirrored locally

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GCMS analysis results for sample AD31278, Feb 25, 2002 · Box DEP Box 16

NYC-WTC_000016407

Laboratory report documenting gas chromatography-mass spectrometry analysis of environmental sample AD31278 conducted on February 25, 2002.

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