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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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Scanned page image, NYC-WTC_000015714
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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 11 Thiophene Concentration Rank 9

R.T. EstConc Area Relative to ISTD R.T. 4.35 1.92 ug/L 1525660 1,4-dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Thiophene 84 C4H4S 000110-02-1 4 2 2-Butenal, 2-methyl- 84 C5H8O 001115-11-3 A 3 2-Butenal, 3-methyl- 84 C5H80 000107-86-84 4 Thiophene 84 C4H4S 000110-02-1 4 Abundance Scan 217 (4.354 min): 12283.D (-216) (-) m/z 84.00 00.00% 84 51 48 5000 37 37 ■ ■ i ■ ■ ■ ■ i • ■ ■ ■ i ■ ■ 40 4.00 4.20 4.40 4.60 4.80

nz-> Of - vU... IJ 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 TTrm pn i । i i m । 1 1 1 ।.1 ‘ • I ' ‘ " I ' m/ z 86.00 75.00% Abundance #116585: Thiophene . 84

58 5000 45 400 4.20 4.40 4.60 4.80 39 m/z 51.05 69.79%

miz-> 12 18 0! ——— +++ 26 32 36, 42 n5.. II'P-, .9,176..81/ 7 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #116563:2-Butenal, 2-methyl- 55 84

4.00 4.20 4.40 4.60 4.80 5000 29 m/ z 48.05 61.16%

26 0!TPTTTTTTTTT 1’1 ■ 11111 44 511 1 41

> 1111111111 [ —TTTT 69 +4 I I “ '' 11‘111' "Mhhniio...., miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #33657:2-Butenal, 3-methyl- 84 400 4.20 4.40 4.60 4.80 55 m/z 37.10 44.35% 41 5000 29

24 — 34 44 51 | । 59 65 69 +4+ 0 ■ ■ । ■ ■ < ■ i > • • * l1 < ■ ■ 11 ■ * > 11 - 11 -11 .".I." 11 . " " 111" 11 n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.00 4.20 4.40 4.60 4.80

12283.D 060302.M Tue Jun 11 08:24:13 2002 Page 14

NYC-WTC_000015714

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NYC-WTC_000015714Source: NYC Law Department, mirrored locally

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