Hello, we have an ICP/MS in our laboratory in Paraguay. We made the tuning periodicaly but I´m not shure about the criteria to evaluate the tuning. In the 7500 cx were: In No Gas Mode masses 7, 89 and 205; oxides and doubly charged; In He Mode just mass 89 (more than 1000CPS) and oxides and doubly charged to.
Wich parameters and values I need to verify in the 7800?
Thanks