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Quality Control Results <br /> Client: SECOR International, Inc. Job Number: 720-7408-1 <br /> Matrix Spike/ Method: 82608 <br /> Matrix Spike Duplicate Recovery Report-Batch: 720-17513 Preparation: 5030B <br /> MS Lab Sample ID: 720-7347-B-9 MS Analysis Batch: 720-17513 Instrument ID: Saturn 3900B <br /> Client Matrix: Water Prep Batch: N/A Lab File ID: c:\saturnws\data\200701\1 <br /> Dilution: 5.0 Initial Weight/Volume: 40 mL <br /> Date Analyzed: 01/23/2007 1356 Final Weight/Volume: 40 mL <br /> Date Prepared: 01/23/2007 1356 <br /> MSD Lab Sample ID: 720-7347-B-9 MSD Analysis Batch: 720-17513 Instrument ID: Saturn 3900B <br /> Client Matrix: Water Prep Batch: N/A Lab File ID: c:\saturnws\data\200701\01 <br /> Dilution: 5.0 Initial Weight/Volume: 40 mL <br /> Date Analyzed: 01/23/2007 1423 Final Weight/Volume: 40 mL <br /> Date Prepared: 01/23/2007 1423 <br /> % Rec. <br /> Analyte MS MSD Limit RPD RPD Limit MS Qual MSD Qual <br /> Benzene 77 93 _u 69-129 4 20 <br /> MTBE 110 113 65- 165 2 20 <br /> Toluene 92 89 70-130 4 20 <br /> Surrogate MS%Rec MSD%Rec Acceptance Limits <br /> Toluene-d8(Surr) 109 104 77- 121 <br /> 1,2-Dichloroethane-d4(Surr) 128 122 73-130 <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br /> STL San Francisco Pacre 39 of 63 <br />