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← Document results/DEP Box 25/GCMS X 4/24/02 A 5/3/02
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GCMS blank analysis report, May 6, 2002

Machine-extracted title · confidence 90%

Laboratory report documenting a GC/MS blank run to check for contamination in the analytical system on May 6, 2002.

NYC-WTC_000043646–000043654

Folder label: “GCMS X 4/24/02 A 5/3/02

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Scanned page image, NYC-WTC_000043652
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Data File C:\HPCHEM\1\DATA\MAY0302\LB.D Vial: 3 Acq On 3 May 2002 3:58 pm Operator: Sample GC/MS SCAN 4/24 Inst : 209 Mise : Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\GCMS0501.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.

8.17 14.39 ug/1 972545 1,4-Dichlorobenzene-d4 12.20 Hit# Of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 64 2 CH2=CHCH2C(O)OCH3 100 C5H802 003724-55-8 9 3 5-Hexen-2-one 98 C6H10O 000109-49-9 7 4 Acetone______ 58 C3H60 000067-64-1 7 Abundance 1 Scan 341 (8.166 min): LB.D (-) m/ z 43.05 100.00% 43

5000 59

101 7 80 8.00 8.20 8.40 8.60 .......... I ■ I I 1 I . I ' . ' ' I ' 38 1 . 53, ' I I ' 69 I ■ ' 1 ' i ■ 1 ' 1 i 83 1 ■ i ' TI— m/z 59.10 41.93% m/z—> 10 20 30 40 50 60 70 80 90 100 110 Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ■ 1 i 1 1 । ■ I ' ... i . ‘"I [ । । । । । । 59 7.80 800 8.20 8.40 8.60 m/ z 58.10 16.55% 27 101

m/z-> ........................... II 10 20 30 — 40 +49+ 50 — 60 70 ——— 80 83 90 +- T-' 100 110 Abundance #1448: CH2=CHCH2C(O)OCH3 43 ■ . । । । । 1 । । । । । । 7.80 8.00 8.20 8.40 8.60 5000 m/z 101.15 13.07%

58 1 72 100 38,4 1*1* 1/** mfe-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #63205: 5-Hexen-2-one < I I I I ■ I I I I I I I Cnnt I I I I I I I 43 780 8.00 8.20 8.40 8.60 m/z 41.05 7.07% 5000

55 15 27 ......... 1 .......... 1.......... 38 50 1 83 98 1 1 ] I ill । i I T: | I i i i । I I । I i'll I [ l l I-] Illi | I ‘ I I I | I I I | |" T" I | I | | T—B । 1 i | t "I r । । । । । i'|' i I*rr m/z--> 10 20 30 40 50 60 70 80 90 100 110 7.80 8.00 8.20 8.40 8.60

LB.D GCMS0501.M Mon May 06 10:51:24 2002 Page 1

NYC-WTC_000043652

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NYC-WTC_000043652Source: NYC Law Department, mirrored locally

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