Tune Report Agilent 7900 ICP MS

Question

Hello dear community,I have a small problem with the mass number lithium 7. I have already changed the hoses, rinsed and replaced Tune solution (shelf life until May). What else could be the reason? Also, the Gd curve is not so nice. I'm out of ideas. I'm out of ideas. Can anyone help me with this?? Thank you in advance. Regards 
 p.s. my english is not so good. I apologize for that

CGS · Answer

Hello KathiSpring 
 
 There seems to be a sensitivity problem for all masses range. You have run the Tune , it's important to know which is the sensitivity in Performance Report from Start Up. If Performace Report , the counts are similar than tune, please, replace the cones ( Sampling and Skimmer),a nother critical point to check is the nebulizer, you can run the nebulizer test from the Sample Introduction Tab 
 If you don't have a new cones, please cleaning them, and after that, execute again Performance Report. 
 If the sensitivity in Performance Report is recovered, please run Tune and check if the counts increase or not.

Thanks 
 Regards

CGS · Answer

Counts from Performance Report are into specifications. Please, execute autotune from batch insteaf of Custom tune to get the parameters from Performance Report 
 Regards