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Table 7. Determination of Bias for Nitrite - Nitrogen <br /> Water Am't Added Am't Found St So Bias <br /> mg/L mg/L <br /> Reagent 0.42 0.42 0.04 0.02 0.0 <br /> 0.56 0.56 0.06 0.0 <br /> 3.51 3.34 0.15 0.08 -4.8 <br /> 4.21 4.05 0.28 -3.8 <br /> 11.2 11.1 0.47 0.34 -1.1 <br /> 14.0 14.4 0.61 +2.6 <br /> Drinking 0.42 0.46 0.08 0.03 +9.5 <br /> 0.56 0.58 0.09 +3.6 <br /> 3.51 3.45 0.27 0.10 -1.7 <br /> 4.21 4.21 0.38 0.0 <br /> 11.2 11.5 0.50 0.48 +2.3 <br /> 14.0 14.2 0.70 +1.6 <br /> Waste 0.42 0.36 0.07 0.06 -14.6 <br /> 0.56 0.40 0.16 -28.6 <br /> 3.51 3.19 0.31 0.07 -9.1 <br /> 4.21 3.84 0.28 -8.8 <br /> 11 2 10.9 0.35 0.51 -3.0 <br /> 14.0 14.1 0.74 +0.4 <br /> Table 8. Determination of Bias for Ortho-Phosphate <br /> Water Am't Added Am't Found St So Bias <br /> mg/L mg/L <br /> Reagent 0.69 0.69 0.06 0.06 0.0 <br /> 0.92 0.98 0.15 +6.5 <br /> 5.77 5.72 0.36 0.18 -0.9 <br /> 6.92 6.78 0.42 -2.0 <br /> 18.4 18.8 1.04 0.63 +2.1 <br /> 23.1 23.2 0.35 +0.4 <br /> Drinking 0.69 0.70 0.17 0.17 +1.4 <br /> 0.92 0.96 0.20 +4.3 <br /> 5.77 5.43 0.52 0.40 -5.9 <br /> 6.92 6.29 0.72 -9.1 <br /> 18.4 18.0 0.68 0.59 -2.2 <br /> 23.1 22.6 1.07 -2.0 <br /> Waste 0.68 0.64 0.26 0.09 -7.2 <br /> 0.92 0.82 0.28 -10.9 <br /> 5.77 5.18 0.66 0.34 -10.2 <br /> 6.92 6.24 0.74 -9.8 <br /> 184 17.6 2.08 1.27 -4.1 <br /> 23.1 22.4 0.87 -3.0 <br /> 300.0-11 August 1991 <br />