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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_000015724
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OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document lenLacively aentirled compound (LSC) summary

Operator ID: Date Acquired: 10 Jun 2002 7:10 pm ' Data File: C:\MSDCHEM\1\DATA\0610022\12283.D Name: gc/ms scan 6/7 Mise: Method: C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title: 508 Modified GC/MS scan Library Searched: C:\DATABASE\NIST98.L

--Internal Standard-- TIC Top Hit name RT EstConc Units Response # RT Resp Cone

Butanoic acid, me... 3.48 0.3 ug/L 277894 1 9.90 31792800 40.0 Methylene Chloride 3.72 5.2 ug/L 4144240 1 9.90 31792800 40.0 Methylene Chloride 3.75 3.9 ug/L 3138980 1 9.90 31792800 40.0 Borane, trifluoro- 3.81 1.9 ug/L 1486980 1 9.90 31792800 40.0 2-Imidazolidinone 3.84 4.0 ug/L 3186600 1 9.90 31792800 40.0 l-Buten-3-yne, 2-... 3.90 1.3 ug/L 995708 1 9.90 31792800 40.0 Methylene Chloride 3.92 4.4 ug/L 3483560 1 9.90 31792800 40.0 Ethanol, 2,2-dich... 4.00 1.3 ug/L 1055180 1 9.90 31792800 40.0 Krypton 4.02 4.0 ug/L 3147310 1 9.90 31792800 40.0 2,2-Dimethoxybutane 4.12 4.0 ug/L 3171790 1 9.90 31792800 40.0 Thiophene 4.35 1.9 ug/L 1525660 1 9.90 31792800 40.0 Butanoic acid, 2-... 4.53 2.7 ug/L 2167500 1 9.90 31792800 40.0 Carbonic chloride... 4.71 1.4 ug/L 1106600 1 9.90 31792800 40.0 3-Methoxybut-1-ene 4.89 2.2 ug/L 1745'520 1 9.90 31792800 40.0 2-Butenal, 2-methyl- 5.29 1.0 ug/L 807365 1 9.90 31792800 40.0 Propiolonitrile 5.51 0.4 ug/L 354553 1 9.90 31792800 40.0 Methylene Chloride 5.59 0.4 ug/L 287641 1 9.90 31792800 40.0 2-Pentanone, 4-hy... 5.96 0.5 ug/L 394488 1 9.90 31792800 40.0 Thiophene, 2 - [2 - (... 22.53 0.3 ug/L 325946 4 22.91 47449600 40.0 Anthracene-dl0- 23.06 0.3 ug/L 410758 4 22.91 47449600 40.0

12283.D 060302.M Tue Jun 11 08:24:59 2002 Page 24

NYC-WTC_000015724

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NYC-WTC_000015724Source: NYC Law Department, mirrored locally

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