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_ r x: <br />� �" �''�... -•%w�� ' .,rr�"5���� _:5.::,eta. i3ti,1""::'.t. .' �: �b fi 1�'y'u; > �� r� -acq`�`e. '+'- ,76,v' fi'.R�E.Se�'efsa�r�maam.,��"r.+„�. r-�c •"v <br /> 03 <br /> l l.anmq c.nmr+m' . <br /> DUPLICATE CONTROL SAMPLE REPORT <br /> Wet Chemistry Analysis and Preparation <br /> Concentration Accuracy Precision <br /> Analyte Spiked Measured Avera e(%} (RPDA <br /> DCSI DCS2 AVG DCS imi s DCS Limit <br /> Category: IC-A <br /> Matrix: AQUEOUS <br /> QC Lot: 10 OCT 91-B <br /> Concentration Units: mg/L <br /> Fluoride 2.0 1.96 1.98 1.97 99 87-112 1.0 10 <br /> Chloride 3.0 3.09 3.10 3.10 103 86-109 0.3 10 <br /> Nitrite (as N) 2.0 . 2.04 2.04 2.04 102 86-110 0.0 10 <br /> Bromide 2.0 2.15 2.13 2.14 107# 87-106 0.9 16 <br /> Nitrate (as N) 2.0 2.11 2.08 2.10 105 87-109 1.4 10 <br /> Sulfate 8.0 8.03 8.11 8.07 101 88-106 1.0 10 <br /> Orthophosphate (as P) 10.0 10.1 9.99 10.1 101 89-I09 1.5 10 <br /> Category: IC-A <br /> Matrix: AQUEOUS <br /> QC Lot: 11 OCT 91-A <br /> Concentration Units: mg/L <br /> Fluoride 2.0 2.04 2.02 2.03 102 87-112 1.0 10 <br /> Chloride 3.0 3.09 3.I2 3.10 104 86-109 1.0 I0 <br /> Nitrite (as N) 2.0 2.10 1.96 2.03 102 B6-110 6.9 10 <br /> r: <br /> Bromide 2.0 2.20 1.94 2.07 104 87-106 13 16 <br /> Nitrate (as N) 2.0 2.I0 2.06 2.08 104 87-109 1.9 10 <br /> Sulfate 8.0 8.04 8.00 8.02 100 88-106 0.5 10 <br /> Orthophosphate !as P) 10.0 9.92 10.1 10.0 100 89-I09 1.6 10 <br /> # - Recovery outside QC Limits <br /> Calculations are performed before rounding to &void round-off errors in calculated results. <br />