Hello Ashish,

You have to dissolve ~0.2000 g (note the actual weight) of pure silver in 5 - 10 mL of concentrated nitric acid, to get a gel which is dissolved in deionised water and made up to 25 mL. Most trace elements can be measured from this solution using ICP-OES (ICP-AES) and/or ICP-MS, taking care to insert operational standards, internal standards and replicates as well as international standards (for validation purposes). To measure silver concentration, you need to dilute this solution and have silver operational standards to 100 mg/L using ICP-OES. For ultra trace amount of elements, you might not get a definite answer with ICP-OES, so try ICP-MS. Otherwise, I do not see a problem. Of course, the final amount of any trace element analysed is calculated based on the dilution factor and the initial weight of silver used. I hope this helps.

Hi Aly,

Thanks for your suggestion. But gold, platinum and palladium does not dissolved in nitric acid. For that I have to use Aqua-regia. If I am wrong please suggest me about gold, Platinum and palladium analysis in pure silver.

Hi Ashish,

By all means use aqua Regia, and not HCl on its own, because of preciapitation of AgCl. To prevent any mistakes also digest a known standard at the same time, so that you can work backwards to prove that no silver is lost.

Hello, Ashish!

I am asking you to send me a reference on your published paper where you have performrd trace analysis in ICP-AES (or ICP-MS) using ultra-pure Ag. If you have not yet a publication on this topic, please, send me a sinilar refererences published by other scientists. My e-mail address: [email protected]

Thank you in advance