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E1 eco <br /> DUPLICATE CONTROL SAMPLE REPORT <br /> Metals Analysis and Preparation <br /> `-' Concentration Accuracy Precision <br /> Analyte Spiked Measured Average(%) ffD) <br /> DCS1 DCS2 AVG DCS Limits D S Limit <br /> Category: 1CP-S <br /> Matrix: SOIL <br /> QC Lot: 16 AUG 90-B <br /> Concentration Units: mg/kg <br /> Aluminum 200 189 190 190 95 84-115 0.5 11 <br /> Antimony 50 45.9 46.8 46.4 93 81-115 1.9 10 <br /> Arsenic 200 185 186 185 93 82-115 1.0 10 <br /> Barium 200 199 199 199 99 85-115 0.0 10 <br /> Beryllium 5.0 4.82 4.84 4.83 97 70-110 0.5 10 <br /> Boron 100 93.W 91.5 92.5 93 85-115 2.1 10 <br /> Cadmium 5.0 4.71 4.83 4.77 95 72-110 2.6 15 <br /> Calcium 10000 9620 9630 9630 96 85-115 0.1 10 <br /> Chromium 20 20.0 19.8 19.9 99 84-115 0.8 17 <br /> Cobalt 50 46.9 47.1 47.0 94 80-115 0.5 10 <br /> Copper 25 25.1 25,1 25.1 100 81-115 0.1 10 <br /> Iron 100 96.2 96.5 96.4 96 85-115 0.3 14 <br /> Lead 50 47.7 45.9 46.8 94 80-115 3.9- 11 <br /> Lithium 20.0 20.7 20.6 20.6 103 85-115 0.1 10 <br /> Magnesium5000 4840 4840 4840 97 85-115 0.0 10 <br /> "anganese 50.0 46.3 46.3 46.3 93 80-115 0.1 10 <br /> alybdenum 20.0 19.2 . 18.8 19.0 95 85-115 1.9 IO <br /> =' `Nickel 50.0 45.1 46.6 45.9 92 80-113 3.3 10 <br /> Potassium 5000 4930 4910 4920 98 82-115 0.4 10 <br /> Selenium 200.0 195 195 195 98 84-115 0.1 10 <br /> tn; Silver 5.0 3.76 3.82 3.79 . 76 62-115 1.1 10 <br /> Sodium 10000 10000 10100 10000 100 85-115 0.1 10 <br /> - Thallium 200 197 193 195 98 fib-110 2.2 ZO . <br /> ` Tin 40.0 36.2 37.2 36.1 92 80-122 2.7 10 <br /> Titanium 20.0 20.9 20.9 20.9 104 85-115 0.2 10 <br /> Vanadium 50.0 46.6 46.7 46.6 93 85-115 0.3 10 <br /> Zinc 50 46.1 46.1 46.1 92 82-115 0.0 10 <br /> k.N <br /> Calculations are performed before rounding to avoid round-off errors in calculated rEsiilts. <br />