All Plasmachem subscribers:
I would like to ask you for your help. We need to determine a content of Al (approx. 0,5-1 mg/kg) in a special material which contains Cd, Te and Zn (the amount of sample is limited - 0,5-1g). It is easy to dissolve the material in nitric acid. We use a ICP-MS Ultramass (Varian), but we have a high background at this mass. Does somebody have some recommendations for this analysis? What is the typical background at this mass in the other instruments?
Any help would be appreciated.