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Qpuanterra <br /> Environmental <br /> Services <br /> LABORATORY CONTROL SAMPLE REPORT <br /> Metals Analysis and Preparation (cont.) <br /> Project: 092398 J <br /> 1 <br /> Category: GFAA10-S Furnace AA Metals J <br /> Test: AS.-QC-FAA-CAMT-S <br /> Matrix: S0LID { <br /> QC Lot: 29 MAR 97-GX QC Run: 29 MAR 97-G J <br /> Concentration Units: mg/Kg <br /> Concentration Accuracy(%) <br /> Analyte Spiked Measured LCS Limits <br /> Arsenic 4.00 3.63 91 49-159 <br /> Cadmium 0.200 0. 186 93 26-174 <br /> Chromium 2.00 2.10 105 53-140 <br /> Lead 2.00 2.04 102 52-141 <br /> Selenium ' 2.00 1.95 98 52-149 <br /> Thallium 5.00 4.76 95 50-150 J <br /> J <br /> J <br /> _ J <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br />