GCMS blank analysis results for sample AE08958, April-May 2002

Machine-extracted title · confidence 100%

Laboratory report of a GCMS blank analysis for sample AE08958 listing chemical compounds with results below detection limits.

NYC-WTC_000049522–000049534

Folder label: “GCMS X 4/16/02 A 4/24/02”

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NYC 9/11 Public Portal Document

'Data File : C:\MSDCHEM\1\DATA\020424\0416LB.D Vial: 3 Acq On : 24 Apr 2002 11:44 am Operator: Nefliu Sample : 04/16 lab blk Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020424.M (Chemstation Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1 ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T.

6.16 11.30 ug/1 13449200 1,4-Dichlorobenzene-d4 11.38

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 50 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 28 4 5-Hexen-2-one 98 C6H10O 000109-49-9 9 Abundance Scan 524 (6.158 min): 0416LB.D (-519) (-) m/z 43.10 100.00% 4

5000 59

101 69 74 83 88 , I 580 6.00 6.20 6.40 6.60 Of ...................... 38 1, IErtIu’ui TI 1 1 t[“ +48,53+ Tr 1 < 1 | 1 । * 1 | ' 1 i । | । 1 1 । | ! ' i i । i m/z 59.10 47.33% miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ■ ‘i ■ IFTTI ■ 11 i ITTT"l i । i । । i 59 5.80 6.00 6.20 6.40 6.60 m/z 58.10 18.83% 15 101

miz-> mBBn—on 10 20 26,3] 30 , 38,1 40 +53+ 50 11——* 60 70 80 83 90 100 110 |

Abundance #109756:2-Pentanone, 4-hydroxy-4-methy- 43 —d—mdnd[ 111 FT’i I I I I 580 6.00 6.20 6.40 6.60 5000 59 m/z 101.10 16.83%

. ...... . 93 __________ y . 93 101 |_____ **11 i ■• ■ 1 i ‘ ‘ ■ • i 1 1 1 1 I 1 1 1 1 r‘' 1 1 1 1 niz-> 10 20 30 40 50 60 70 80 90 100 110 . Abundance #109590: Acetic acid, 1,1-dimethylethyl ester 1‘12—=n——Cnn 43 5.80 6.00 6.20 6.40 6.60 m/z 41.05 7.21% 5000 57

29 101 15 I 2 +51 . . -----434 73 11'1■ ■ i ' ■ • ■ i■■•■i■■ ■ ■ i 1 1 ■ ■ i ■ TTrppmorfrmmmerr m/z-> 10 20 30 40 50 60 70 80 90 100 110 5.80 6.00 6.20 6.40 6.60

0416LB.D SCAN020424.M Thu May 02 14:37:22 2002 Page 3

NYC-WTC_000049527

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NYC-WTC_000049527Source: NYC Law Department, mirrored locally

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