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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_000015712
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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 9 Krypton Concentration Rank 5 R.T. EstConc Area Relative to ISTD R.T.

4.02 3.96 ug/L 3147310 1,4-dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Krypton 84 Kr 007439-90-9 9 2 2,3,4,5-Tetrahydropyridazine 84 C4H8N2 000694-06-4 4 3 Thiophene 84 C4H4S 000110-02-1 4 4 Furan, 2,3-dihydro-4-methyl- 84 C5H8O 034314-83-5 4 Abundance Scan 161 (4.025 min): 12283.D (-160) (-) m/z . 47.00 100.00% 47 84

5000 41 72 50 88 38 3.60 3.80 4.00 4.20 4.40 0— ■ ■ । ■1" । ■ “11 “ “ ।1 ■1 ■ । TI1I ■ ■ i • ■' ■ r ■ ■ i ■' ■ ■ i ■ ■ m/z 84.00 96.97% niz-> 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #33829: Krypton 84

5000 3.60 3.80 4.00 4.20 4.40 42 m/z 41.10 42.83% oh '' i'' “ i “ “ i “ " i ■ • “ i111 ■ i'1'11 “ " pTre’I 111111111111 ITTITITI11 80 “ i' “ • i ■' miz-> 15 2025303540 45 50556065 70 75 80859095 Abundance #33489:2,3,4,5-Tetrahydropyridazine 28 84

3.60 3.80 4.00 4.20 4.40 5000 55 m/z 86.00 38.79% 41 69 44 1 miz-> 15 Oh 20 25 30 1 ■ i • ‘ 35 IJlH45,..... 40 HI 1' i ■ ■ “ i ■ ■ 50 55 60 65 70 75 80 85 90 95 i ■ " ■ i ‘1 ■ ■ i “ i ■' ■ ■ I ■ ■ ■ ■ i "

Abundance #116584: Thiophene 84 3.60 3.80 4.00 4.20 4.40 58 m/z 71.90 37.37% 45 5000 39 26 m/z-> Oh 15 20 mH 34,391 ++ 25 42 + 1,,1 " I'1'111 72“ r ■ ।. 81I H,1 +7 +TT 30 35 40 45 50

50 55 60 65 69 70 75 80 85 90 95 3.60 3.80 4.00 I 1 ‘ ‘ ‘ i 4.20 4.40

12283.D 060302.M Tue Jun 11 08:24:04 2002 Page 12

NYC-WTC_000015712

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NYC-WTC_000015712Source: NYC Law Department, mirrored locally

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