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p. 1 Created with Analyst Reporter Printed: 19/02/2010 11:59:00 AM Project Data File Result Table Instrument Name Ewan's Projects\PFCs 021710\SamplesLong.wiff 021710long.rdb API 5000 Sample Name Acquisition Date Acquisition Method Injection Vial K1001011-011 2/17/2010 9:24:11 PM PFCkinetexLong.dam 35 Injection Volume Sample Type Dilution Factor Weight to Volume 5 Unknown 1.00 0.00 Results Summary Analyte Peak Name IS Name PFOA 1 13C-PFOA PFNA 1 13C-PFNA PFOS 1 13C-PFOS PFDA 1 13C-PFDA PFUnA 1 13C-PFUnA PFDS 1 13C-PFOS PFDoA 1 130-PFDoA PFTrA 1 13C-PFDOA PFTeA 1 13C-PFD0A IS Area 4402000 2990900 9639100 2911800 179780 9639100 292280 292280 292280 Analyte RT (Exp RT ) 1.20 (1.36) 1.95 (2.06) 2.00 (2.09) 3.02 (3.06) 3.83 (3.88) 3.83 (3.87) 4.48 (4.55) 5.03 (5.06) 5.47 (5.51) Analyte Area 72531 29905 327310 62698 65497 145900 41799 25222 13536 Calc.

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3M Environmental Laboratory AR116- ooz^ k) M ethod Analysis of Potassium Perfluorooctanesulfonate or O ther Fluorochemical Compounds in Urine E xtracts U sing H PL C -E lectrospray/M ass Spectrometry/M ass Spectrom etry Method Number: ETS-8-97.0 Adoption Date: Author: Lisa Clemen, Robert Wynne, Glenn Langenburg Revision Date: Approved By: Laboratory Manager Group Leader ------ _ 7 / u /y 5 Date f/Z-37# Date - A C iu m -____________________ ______________________ Technical Reviewer Date 1.0 Scope and Application_________________________________________________ 1.1 Scope: This method describes the analysis of urine extracts for fluorochemicals using HPLC-electrospray/mass spectrometry. 1.2 Applicable Compounds: Fluorochemicals or other ionizable compounds. 1.3 Matrices: Human, rat, and monkey urine, or other fluids as designated in the validation report.