GCMS blank analysis results for sample AE03508, March 2002

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Laboratory report showing GCMS blank analysis results for volatile organic compounds with detection limits below MDL.

NYC-WTC_000037616–000037634

Folder label: “GCMS X 2/19/02 A 3/8/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02MAR08\0219B.D Vial: 1 Acq On : 8 Mar 2002 10:39 am Operator: Sample : lab blank 2/19 Inst : Instrumen Mise : March 8, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP022102 .M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 8 Decane, 2,5,6-trimethyl- Concentration Rank 4

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

8.59 0.13 ug/L 61562 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Decane, 2,5,6-trimethyl- 184 C13H28 062108-23-0 78 2 Octane, 2,4,6-trimethyl- 156 C11H24 062016-37-9 59 3 Dodecane, 2,2,11,11-tetramethyl- 226 C16H34 127204-12-0 53 4 Heptane, 2,2,3,4,6,6-hexamethyl- 184 C13H28 062108-32-1 45 Abundance Scan 462 (8,589 min): 0219B.D (-) m/z 57.10 100.00% 57

5000 43 71 85 98 1 i ' ' ' 1 I ' ' ' 8.20 8.40 1rr —AA 8.60 8.80 9.00 —....... II, 1 ’IT 0+ TIIHT T’E l * ‘ ‘ * I ’ ‘ ‘ I' •' ' i i11 ■' i11 ■ ■ i ■ ■ m/z 56.10 35.70% m/z-> 40 50 60 70 80 90 100 110 120 130 140 150 160 170 Abundance #93445: Decane, 2,5,6-trimethyl- 57 43

5000 ■ । • • • » । • । ■ TTI 4 8.20 8.40 8.60 8.80 9.00 71 m/z 43.10 24.41% 84 on ol -H - L 98113 127 ..................... 11 •1111 ■ ■'11 ■ ■ ■ • i ■ ’ ■ ■ i ■1 • ■ i ■ • • • i ■ ■1 ■ i • ■ ■ ■ i ■ ■ • • i ■ • miz-> 40 50 60 70 80 90 100 110 120 130 140 ISO 160 170

A Abundance #56276: Octane, 2,4,6-trimethyl- 57

8.20 8.40 8.60 8.80 9.00 5000 m/z 71.10 22702% 71 85 - 99 01 — i ■ ■ ■11 ■ • • ■ i ■ ■127 • * i ■ ■ • • i ■ ■ ■ ‘ i •1 ■ ■ i ‘ ■ i • ■ mz-> 40 50 60 70 80 90 100 110 120 130 140 150 160 170 Abundance #154955: Dodecane, 2,2,11,11-tetramethyl- 57 8.20 8.40 B.60 8.80' 9.00 m/z 85.10 14.57% 5000

71 or miz-> 0 —402 . J | 99 113 127 141 110—9ptmTpmmpHp 155 168 50 60 70 80 90 100 110 120 130 140 150 160 170 TIOIII———rouuhi————u1 8.20 8.40 8.60 8.80 9.00

0219B.D HP022102.M Fri Mar 15 10:08:44 2002 Page 10

NYC-WTC_000037628

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GCMS blank results for sample AE03508, March 2002 · Box DEP Box 23

NYC-WTC_000037635

Laboratory report documenting GCMS analysis of a method blank for sample AE03508 to verify analytical system cleanliness.

1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994