GCMS blank results for volatile organics, Sample AE05750, April 2002

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Laboratory report showing blank analysis results for volatile organic compounds in sample AE05750 from April 2002.

NYC-WTC_000048469–000048478

Folder label: “GCMS X 4/10/02 A 4/15/02”

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NYC 9/11 Public Portal Document

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Data File : C:\HPCHEM\l\DATA\APR1202\LBA.D Vial: 16 Acq On : 15 Apr 2002 10:47 pm Operator: Sample : gc/ms scan 4/10 Inst : 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0412.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 8.20 5.82 ug/1 822651 1,4-Dichlorobenzene-d4 12.23 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 50 2 Acetic acid, 1,1-dimethylethyl este 116 C6H1202 000540-88-5 33 3 Butane, lfethoxy- 102 C6H140 000628-81-9 9 4 3-Hydroxy/-2-pentanone___________ 102 C5H10O2 003142-66-3 9 Abundance Scan 344 (8.202 min): LBA.D (-) m/ z 42.95 100.00% 43

59 5000 - T I I I l . . 1 101 7.80 8.00 8.20 8.40 8.60 ............................ 1) ,, , ,53., 1 I I I I 11 I I I I I I I I I I I I I I I 1 69 83 I I I I I C I 1 I I I I I 1 1 1 1 1 11 1 1 1 m/z 59.05 52.43% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 59 7.80 8.00 8.20 8.40 8.60 m/z 100.95 21.18% 27 101 49 83 m/z->10 ' ' 1 1 ' ' 1 1 20 I,/ 30 ....... 40 1 1 ' i ' 1 1)i 1 50 60 70 —yn ‘"I 80 90 - 100 110 Abundance #3292: Acetic acid, 1,1-dimethylethyl ester 43 21 । । । । । । 7.80 8.00 8.20 8.40 8.60 5000 57 m/z 58.05 16.60% 101 1,5 27 1______________1________ ’ ' I ' 1 r ' I 1 ' ' ' 1 1 ‘ 1 1 1 1 1 ' 1 1 ' ' 1 i■■ 1 ' 1 । 1 1 1 ■ । 1 r ' ■ i 1 1 । *'III n/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #63550: Butane, 1-ethoxy- 519 7.80 8.00 8.20 8.40 8.60 31 m/z 41.05 8.04% 5000

45 73 I I 1 1 1 1 1 ' ' 1 1 I ' —40lp | 87 ————————————————————— 102 ....... / 5... i [ i r i I | f i i I [ i i i i I I I I "Id /z—> 10 20 30 50 60 70 80 90 100 110 780 8.00 8.20 8.40 8.60

LBA.D GCMS0412.M Wed Apr 17 09:49:30 2002 Page 1

NYC-WTC_000048475

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NYC-WTC_000048986

Laboratory report documenting a blank sample analysis for GCMS testing of volatile organic compounds in April 2002.

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