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GCMS analysis results, sample AE09970, May 2002

Machine-extracted title · confidence 100%

Laboratory report for sample AE09970 showing surrogate recovery and unknown compounds from May 9, 2002.

NYC-WTC_000043976–000044000

Folder label: “GCMS X 4/25/02 A 5/7/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\MSDCHEM\1\DATA\050602\9970.D Vial: 27 Acq On 7 May 2002 8 : 52 am Operator: Mclean Sample 4/25 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\l\METHQDS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 2 Methylene Chloride Concentration Rank 2

R.T. EstConc Area Relative to ISTD R.T. 3.73 0.67 ug/L 459722 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-221 2 Methylene Chloride 84 CH2C12 000075-09-2 86 3 Methylene Chloride 84 CH2C12 000075-09-278 4 Methylene Chloride 84 CH2C12 000075-09-2 72 Abundance Scan 110 (3.726 min): 9970.D (-96) (-) m/z 43.10 100.00% 43 49 84

5000

‘ 111**11‘‘II‘1IIIU‘ I-TI 35

m/z-> 5 t-rrp- 1.38 | 59 , 88 -mmmPTTPT '111"11| I■ I.।।. I | I । I I | I I I I | I I I r । i । i | | I I j ( I I 1 | I /

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 + m/z 3.40 3.60 49.10 3.80

"yyw 4.00 93.06% Abundance #111041: Methylene Chloride 49 MMMMwW 84 5000 TT 3.40 3.60 3.80 4.00 46 m/z 84.00 89.19% 2629 41 4 ,52 59 65 73 77 88 A APMWMMaoanny m/z-> 5 1111" I | I i I i ] I i I > j I i r « | 1 | I | | I I I I | i i i i | I I | I |

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 I TTT] I I I I I I I > I I I I I > I I I > I I CTTTTTT t + I I I I I I I I I > ■ MMWMiy Abundance #12327: Methylene Chloride 49 84 3.40 3.60 3.80 4.00 5000 m/ z 86.00 49.23%

88 14 18 24 2831 353841 11 52________ 70 | I i l"| I i i r । i 1 । i [ i । i i | I I I | | I r I I | i I I I । > | ! I ! ! | ! I

n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111040: Methylene Chloride ( 1 1 1 1 I I 1 1 I I 1 I I I I I I I 1 I 49 3.40 3.60 3.80 4.00 84 m/z 51.10 23.04% 5000

35 88

m/z-> 14 2528 32 3841 152 70 > ‘“[“I । > । । i I I I । । । r t । i i i i । t i l r^ i i । I 4 I I i । I I i i । ।

5 i'" 1 r "' i 1 I''111111 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 1‘ H ' 1 1 1 3.40 ' ' 'I 3.60 3.80 4.00

9970.D 050102.M Tue May 07 15:49:39 2002 Page 6

NYC-WTC_000043986

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NYC-WTC_000043986Source: NYC Law Department, mirrored locally

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GCMS analysis results, sample AE09968, May 2002 · Box DEP Box 25

NYC-WTC_000043938

Gas chromatography-mass spectrometry analysis report for sample AE09968, detecting unknown compounds and 2,4-DDD surrogate with 78% recovery, dated May 9, 2002.

1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997

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