石墨炉原吸收光谱法测定化探样品中超痕量铂钯
官东超
The application of graphite furnace atomic absorption spectrometry to determination of ultra-trace platinum and ultra-trace palladium in rock ore
Dong-Chao GUAN
表8
加标回收实验结果
样 品
样品含量/ng
加标量/ng
测定值/ng
回收率/%
Pt
Pd
Pt
Pd
Pt
Pd
Pt
Pd
GPt-1
2.6
2.6
100
100
104.7
105.0
102
102
GPt-2
16
23
100
100
120.3
124.0
104
101
GPt-4
580
600
100
100
679.7
699.2
100
99
GPt-7
147
152
100
100
244.0
249.0
97
97