From others experience is there a way of firstly fully digesting mineral samples like gypsum that contain silica without the use of HF?
And if there isn't what analytical techniques may encompass the following elements and the lower limits of quantification we require;
As(1ppm), Be(0.1ppm), Cd(0.1ppm), Co(0.5ppm), Cr(5ppm), Cu(5ppm), Hg(0.1ppm), Mn(50ppm), Ni(5ppm), Pb(10ppm), Se(10ppm), Tl(0.1ppm), V(3ppm) and Zn(20ppm).
Currently we use a combination of XRF pressed pellet and GFAAS solid sample analysis. This however is very time consuming and as a result costly.
ICP-MS would seem an obvious choice if the sample can be fully digested (minus volatiles if method of preparation is to hot).
But, are there any other alternatives?
Any advice greatly appreciated.