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GCMS surrogate recovery report, sample AE12283, June 2002

Machine-extracted title · confidence 100%

Report documenting the recovery percentage of the 2,4-DDD surrogate standard used to validate gas chromatography-mass spectrometry analysis.

NYC-WTC_000015696–000015724

Folder label: “GCMS X 6/7/02 A 6/10/02

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\MSDCHEM\l\DATA\0610022\12283.D Vial: 11 Acq On : 10 Jun 2002 7:10 pm Operator: Sample : gc/ms scan 6/7 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L Peak Number 8 Ethanol, 2,2-dichloro- Concentration Rank 12

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

4.00 1.33 ug/L 1055180 1,4-dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Ethanol, 2,2-dichloro- 114 C2H4C120 000598-38-9 2 2 Acetic acid, chloro-, ethyl ester 122 C4H7C1O2 000105-39-52 3 Ethyl Chloride 64 C2H5C1 000075-00-3 1 4 2-Chloroethanol 80 C2H5C10 00010707-3 1 Abundance Scan 157 (4.002 min): 12283.D (-155) (-) m/Z 49.16 100.00% 49

5000 84 41 3.60 3.80 4.00 4.20 4.40 - 01 - J.................. ............... m/z... 51.10 39.73% miz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #1082: Ethanol, 2,2-dichloro- 31

5000 3.60 3.80 4.00 4.20 4.40 m/z 47.10 37.14% 25 , 37 43 49 55 61 70 77. 83 01 TIIPPTI——# 1 1 1 1 1 1 1 ' i'i 96 103 114 । । । . i . I i । । • ■ . . । . niz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #108005: Acetic acid, chloro-, ethyl ester 29

3.60 3.80 4.00 4.20 4.40 5000 m/z_ 84.00 22.71% 77 42 49 14 Of ...r^1....... ■ T ,,35 59 65 | 88 94 107 122 ' ''I ' ■ l ' 1 11 11 । । > । । i’i । । 1 1 ''''I IIIIIEIIu iz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #107943: Ethyl Chloride 23 3.60 3.80 4.00 4.20 4.40 m/z 41.10 11.78%

5000

49 64 L""4Myaw 15 35 O' + I, I ' —1 n/z—> 10 20 30 40 50 60 70 80 90 100 110 120 130 3.60 3.80 4.00 4.20 4.40

12283 .D 060302 .M Tue Jun 11 08:24:00 2002 Page 11

NYC-WTC_000015711

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NYC-WTC_000015711Source: NYC Law Department, mirrored locally

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