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(1) Where applicable, custom lab flags have been used on this report. <br />These data are validated and reported as accurate and in accord with SGS AXYS Analytical Services Ltd. ISO17025 compliant quality assurance <br />processes. <br />Signed: ___________Bryan Alonzo___________ <br />For Axys Internal Use Only [ XSL Template: FC-Form4A.xsl; Created: 16-Jun-2020 11:23:07; Application: XMLTransformer-1.18.7; <br />Report Filename: PFOA_FC_LC_FC0L_151S25__Form4A_SJ2745758.html; Workgroup: WG72387; Design ID: 3973 ] <br />SGS AXYS METHOD MLA-110 Rev 02 <br />Form 4A <br />LC MS/MS CALIBRATION VERIFICATION <br />SGS AXYS ANALYTICAL SERVICES <br />2045 MILLS RD., SIDNEY, B.C., CANADA <br />V8L 5X2 TEL (250) 655-5800 FAX (250) 655-5811 <br />Initial Calibration Date:18-Mar-2020 VER Data Filename:FC0L_151 S: 25 <br />Instrument ID:LCMS/MS Analysis Date:15-May-2020 <br />LC Column ID:C18 Analysis Time:22:32:32 <br />COMPOUND LAB <br />FLAG 1 <br />RETENTION TIME EXPECTED CONC. <br />(ng) <br />CONC. FOUND <br />(ng) <br />RECOVERY (%) <br />PFBA 1:55 40.0 40.5 101 <br />PFPeA 4:21 20.0 20.4 102 <br />PFHxA 4:56 10.0 9.55 95.5 <br />PFHpA 5:24 10.0 10.0 100 <br />PFOA 6:10 10.0 9.17 91.7 <br />PFNA 7:01 10.0 10.1 101 <br />PFDA 7:30 10.0 9.40 94.0 <br />PFUnA 7:50 10.0 10.4 104 <br />PFDoA 8:06 10.0 8.13 81.3 <br />PFTrDA 8:26 10.0 9.41 94.1 <br />PFTeDA 8:52 10.0 10.2 102 <br />PFBS 4:54 10.0 9.80 98.0 <br />PFPeS 5:26 10.0 10.8 108 <br />PFHxS 6:17 10.0 9.84 98.4 <br />PFHpS 7:07 10.0 9.75 97.5 <br />PFOS 7:36 10.0 9.26 92.6 <br />PFNS 7:55 10.0 10.9 109 <br />PFDS 8:13 10.0 9.62 96.2 <br />PFDoS 9:03 10.0 9.73 97.3 <br />4:2 FTS 4:49 40.0 45.1 113 <br />6:2 FTS 5:51 36.0 34.7 96.3 <br />8:2 FTS 7:21 40.0 41.6 104 <br />PFOSA 8:43 10.0 10.2 102 <br />N-MeFOSA 10:07 11.5 12.0 104 <br />N-EtFOSA 10:25 25.0 24.6 98.2 <br />MeFOSAA 7:33 10.0 10.5 105 <br />EtFOSAA 7:42 10.0 10.7 107 <br />N-MeFOSE 10:00 100 103 103 <br />N-EtFOSE 10:18 75.0 77.2 103 <br />HFPO-DA 5:05 40.0 41.0 102 <br />ADONA 5:38 40.0 42.6 106 <br />9Cl-PF3ONS 7:50 40.0 45.0 112 <br />11Cl-PF3OUdS 8:28 40.0 44.8 112 <br />Page 1 of 1 (WG72387 -PFOA_FC_LC_FC0L_151S25__Form4A_SJ2745758.html) <br />www.axysanalytical.com <br />Page 59 of 94