Internal std solution for ICPOES 5800

Question

Dear 
 please we have Std solution Yterium 10,000ug/ml for ICPOES so c 
 ould you tell us which concentration will be better for analysis ? 
 i expect to prepare for 1% of this std for analysis . 
 please advise. 
 thanks.

Agilent · Answer

Hello ousmane_samake , 
 You mean Ytterbium (Yb) or Yttrium (Y)? 
 If it is Yb, watch out for spectral interferences on your analytes. Yttrium is more appropriate for ICP OES in general. 
 Anyway, a concentration of 5-10 ppm is quite sufficient to use as internal standard in ICP OES. Please select carefully the wavelength so you could get a good signal with enough SBR to use it as IS. 
 As a tip, select your IS first and then your analytes - then you will get the possible IS interference lines marked in the right table of interferences. 
 Hope this helps, 
 Rodolfo