GCMS blank analysis report for sample AE12735, June 2002

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Log sheet recording sample numbers, drip rates, pH levels, and other processing metrics for multiple environmental samples.

NYC-WTC_000015135–000015158

Folder label: “GCMS X 6/3/02 A 6/7/02”

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NYC 9/11 Public Portal Document ulorary aearen compound Report

Data File C:\MSDCHEM\1\DATA\0 6 0 7 02\LBA.D Vial: 10 Acq On 7 Jun 2002 3:55 pm Operator: Sample gc/ms scan 6/3 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C: \DATABASE\NIST98 . L ********************************************************************* Peak Number 12 Octane, 2,5,6-trimethyl- Concentration Rank 13 R.T. EstConc Area Relative to ISTD R.T. 8.70 0.28 ug/L 191427 1,4-dichlorobenzene-d4 9.89 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Octane, 2,5,6-trimethyl- 156 C11H24 062016-14-2 42 2 Decane, 2,5,9-trimethyl- 184 C13H28 062108-22-9 4 3 Decane, 2,5,6-trimethyl- 184 C13H28 062108-23-0 7 8 4 Hexane, 3-ethyl-2,5-dimethyl- 142 C10H22 052897-04- 25 Abundance Scan 957 (8.702 min): LBA.D (-951) (-) m/z 57.10 10 .00% 57

5000 43

ll 71 98 3611,1 ri', , J —mPmnpmmmmmmm 85 1A, 1 * ■ । * * ■ ■ । 1 * ■1 i 1 ' 1 * p p' 1 i 8.40 8.60 8.80 9.00 Ot , , m/ z 43.10 37.71% m/z-> 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Abundance #16365: Octane, 2,5,6-trimethyl-

5000 43 57

m/z 8.40 8.60 56.20 8.80 s 9.00 30.56% 29 70 85 n/z-> 0+ ....... .. 1′114 "I'11′14 20 30 40 +5041 50 —-78,4+9R. 60 70 80 90 100 110 120 130 140 150 160 117 127 156 ■ i1" ‘ i • ■ ■ ■ i ■ ■ ■ ■ i • ■ ■ ■ i • ■ ■ ■ i ■ ‘

Abundance #16457: Decane, 2,5,9-trimethyl- 57 ■ ■' । •11'' ■' ।1111 p''11 8.40 8.60 8.80 9.00 5000 43 m/z 71.20 23.51% 71

- 85 99 113 Of ' ' i ■ • i ■ ■ ‘ ''i ■ ■ ■ ■ i ■ i ' ' " i ■ ■ ■ ■ i • ■ ■ ■ i ■ ■ ■ • i 1 •

miz-> 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Abundance #16364: Decane, 2,5,6-trimethyl- * * । ■ ■ ■ * i ■ ■ ‘-i • 1 • ■ i 1 ■ ■ ■ i 57 8.40 8.60 8.80 9.00 43 m/z 41.10 21.75% 5000

71 84 0 -T PTpr 4 JL 4181 127 150 l■■■■l■ ■ ■ it1 1 1 1 ! 1 1 miz-> 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160

LBA.D 060302 .M Mon Jun 10 11:27:35 2002 Page 15

NYC-WTC_000015153

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NYC-WTC_000015153Source: NYC Law Department, mirrored locally

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