GCMS blank results for sample AE03509, March 28, 2002

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Laboratory report documenting GCMS analysis of a method blank for sample AE03509 to verify analytical system cleanliness.

NYC-WTC_000037660–000037679

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\03509 . D Vial: 5 Acq On : 8 Mar 2002 1:57 pm Operator: Sample : 508 scan 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 9 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 12

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

6.08 0.11 ug/L 54675 1,4-Dichlorobenzene-d4 9.71

Hit# of 5 Tentative ID MW MolForm CAS# Qua.

1 2-Pentanone, 4-hydroxy-4-methyl-... 116 C6H12O2 000123-42-2 6 2 2-Pentanone, 4-hydroxy-4-methyl-... 116 C6H1202 000123-42-2 56 3 1,1-diisopropoxypropane, diisopr... 160 C9H20O2 000000-00-0 9 4 1-Propanol, 3-ethoxy- $$ Dowanol... 104 C5H1202 000111-35-3 9 Abundance Scan 240 (6.083 min): 03509.D (-) m/z 43.10 100.00% 43

5000 59 101 89 5.80 6.00 6.20 6.40 0' kl I. J. I.. 1.1.. 1.1 >. I». > j. I.. 1. 11JI f 11 ““I - mmmmmmmmmm- " i‘ m/z 59.10 46.46% m/z—> 5 10 5 20 25 30 35 40 45 50 55 60 65 70 758C 85 90 95 100105 Abundance #16604: 2-Pentanone, 4-hydroxy-4-methyl- (CAS) $$ Diaceton... 43

5000 • ■ i ■ ■ -P-PY 59 5.80 6.00 6.20 6.40 m/z 58.00 29.33% 27 . 83 1011 49 0 mmp# ' i ■"11 • TTHmppgg m/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Abundance #16605: 2-Pentanone, 4-hydroxy-4-methyl- (CAS) $$ Diaceton... 43 ■ • i ■ ■ 111111’1 5.80 6.00 6.20 6.40 5000 m/z 101.00 19.31% 59

15 101 m/z—> 0 m rmm 31 1[ mHmp l 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 83 . ! TWHPNgp Abundance #59899:1,1-diisopropoxypropane, diisopropyl propional 31 43 59 5.80 6.00 6.20 6.40 rn/Z 42.00 11.27% 5000 101

89 15 26 0 “T’U’011077117Tr71 TtTJTTTTp- “I"T"TIUITTTOEIETTETTT pmpm “11 “ 111 A V _____ ■ ■ i • •1 • i • ■ ■ • i ‘ ■ m/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 5.80 6.00 6.20 6.40

03509.D HP022102.M Fri Mar 15 10:08:58 2002 Page 11

NYC-WTC_000037674

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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.

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