GCMS blank analysis for sample AE10303, May 2002

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Laboratory report showing blank analysis results for volatile organic compounds in sample AE10303 on May 9, 2002.

NYC-WTC_000045048–000045062

Folder label: “GCMS X 5/1/02 A 5/8/02”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File C:\MSDCHEM\1\DATA\050802\0501LB.D Vial : 3 Acq On 8 May 2002 3:26 pm Operator: Mclean Sample 5/1 eh Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 3 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

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

5.96 9.30 ug/L 7671450 1,4-Dichlorobenzene-d4 9.93

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 0 2 2-Pentanone, 4 -hydroxy-4 -me thyl- 116 C6H1202 000123-42-2 3 2-Pentanone, 4 -hydroxy-4 -me t hyl- 116 C6H1202 000123-42-2 4 Acetone_____ 58 C3H60 000067-64-1 38 Abundance Scan 490 (5.958 min): 0501 LB D (-481) (-) m/z 43.10 100.00% 43

5000 59 । i I • । । i r । i I i i | । 1 i i । r 101 5.60 5.80 6.00 6.20 6.40 0 ' 1 1 ' 1 1 ' I 1 1 ' ‘ I ' ‘ 1 r 1 1 +4853+ ............................. 169..... 83 ....... , I........ ) I I I I I r I > I I I I I I I I I I I J I I I I I I m/z 59.10 34.16% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 59 5.60 5.80 6.00 6.20 6.40 m/z 58.05 23.12% 15 31 101 01 ......... 261,38,1 ' । | ' । । । | I T-f I | I I I I I 83 I I | I I । .I PI i i — r 53 , q i r i — । I i r — 1 ;-7 1 ‘ I Tl/Z--> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851: 2-Pentanone, 4-hydroxy-4-methyl- 1 . I I i i | i i ) . _ । r [ I I I i | I 43 5.60 5.80 6.00 6.20 6.40 5000 m/z 101.10 14.33% 59 — 101 01 37432 38,4 tTT 48 53, | i i h 67i | 72 77 83 91 96, | । । i r 1 i i I T I T7 । I ' [ t ' I—T“" I-' | t

m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methy)- 43 5.60 5.80 6.00 6.20 6.40 m/z 41.10 5.41% 5000 59

101

m/z-> 0 . . 10—..... 20 29,3130 . 38,140 1—— 50 + 60 T ' 1 1 1 i 1 ' ' ■ i ' ' ' 1 I 70 80 83 90) 93 । 100 110 —pnmmp -PPpppppi r 5.60 5.80 6.00 6.20 6.40

0501LB.D 050102.M Thu May 09 13:47:15 2002 Page 6

NYC-WTC_000045057

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GCMS blank analysis results for VOCs, May 9 2002 · Box DEP Box 25

NYC-WTC_000045547

Laboratory report of a GC/MS blank run analyzing volatile organic compounds with results below detection limits in May 2002.

1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996