Quick ICP question
Posted: Thu Sep 10, 2009 3:30 pm
by sassman
I am looking for an ICP-MS standard with a number of elements. Anyone know why Hg is not included in any of the multi-element standards? I'm sure there's a reason, just don't know where to look for the answer.
Posted: Wed Oct 07, 2009 4:43 pm
by jerole
It shouldn't be a stability issue, Hg standards are stabilized with HNO3 like most other elements.
Maybe it's just a concentration issue. Hg has a very high memory effect and if you need to prepare high concentration standards for the other elements it would screw your Hg analysis.
Merck sells a multielemental ICP solution that contains some heavy metals in lower concentrations, it includes Hg. The reference is: 109494
J