Sample Preparation - Digestion method for Rh coated Pt
I am need of a digestion solution for Rh coated Pt pins. We have tried aqua regia in our microwave, without success. We have also tried 10 mL HCl with 0.5 mL of H2O2, to attack the Rh, then adding 2 mL of HNO3 to attack the Pt , again without success.
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We would recommend a mixture of HCl and water (1:1) that has chlorine gas (Cl2) dissolved and bubbling into it. |