1. G

    How to dissolve the precious metals after cuppelation

    Dear, We just started to use the fire assay method at our company and we have a problem dissolving the gold/silver after cuppelation. We want to use a ICP-OES or FAAS finish for gold but when we dissolve it with aqua regia the little ball of gold/silver turns black and doesn't dissolve...
  2. V

    Fire Assay Equipment

    Hi, I want to set up a fire assay business for gold, silver, platinum and palladium. Would someone be able to tell me exactly what equipment I need (for example, types of furnaces etc)? Thanks Vince
  3. P

    Determination of Platinum, Gold and Silver

    Hey guys, I'm a student in a mineral assay course and I have been trying to find some information about the procedures for the determination of the following ores; -Low grade Pt, Au and Ag -High grade Pt, Au and Ag So far I didn't have any luck, is kind of hard to find information about...