Determination of trace and ultra-trace amounts of noble metals in geological and related materials by graphite-furnace atomic-absorption spectrometry after separation by ion-exchange or co-precipitation with tellurium

Talanta ◽  
1989 ◽  
Vol 36 (6) ◽  
pp. 651-656 ◽  
Author(s):  
J.G.Sen Gupta
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