Sample Preparation - Sample preparation without organic solvents
I am interested in measure the Pb to S ratio in PbS nanocrystals (NC) using an ICP-OES instrument. These NC are dispersed in an organic solvent and stabilized with long chain ligands like oleic acid. I can also deposit the NC as a film to remove the solvent.My concern is that when I digest the PbS NC film the acid will volatilize the sulfur thus skewing my results. Would the universal solvents you use for zeolite measurements work on such a system? Any other sample prep advice for this system is most appreciated. FYI: Everything entering our ICP-OES has to be in an aqueous solution, we do not have an organic solvent line.
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admin
Total posts: 529
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If an organic solvent is out of the question then a digestion appears to be required. Our considerations in this matter are as follows:
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