g)加入的元素(mg)测得铂(mg)绝对误差(mg)相对误差(%)备注10.12Rh3+0.5010.120.000.0010.12Pd2+0.5010.120.000.0010.12Ir4+0.0510.14+0.02+0.2010.12Ru3+0.0510.13+0.01+0.1010.12Au3+0.0510.13+0.01+0.1010.12Ag+0.0510.11-0.01-0.1010.12Cu2+1.0010.12+0.02+0.2010.12Fe3+0.0510.15+0.03+0.3010.12Pb2+0.0510.120.000.0010.12Sn4+0.0510.13+0.01+0.1010.12Ca2+0.5010.120.000.0010.12Mg2+0.5010.11-0.01-0.1010.12Na+1.0010.120.000.0010.12Cr3+0.0510.14+0.02+0.2010.12Zn2+0.0510.13+0.01+0.1010.12Al3+0.0510.13+0.01+0.1010.12Ni2+0.0510.13+0.01+0.1010.12Si4+0.5010.12+0.00+0.0010.12Mn2+0.0510.120.000.0010.12Ba2+0.0510.13+0.01+0.102.6方法精密度分别称取各化合物试样11份,按上述最佳条件测定测定,结果见表6。方法精密度好,RSD<0.2%。表6方法精密度试料测定数据(%)平均值(%)RSD(%)氯铂酸38.1338.2038.1638.1538.1438.1738.1038.1238.1638.0838.1538.140.09氯铂酸钾40.1540.1040.0240.1340.0640.1040.0540.0140.0340.0639.9840.060.13
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