Analysis for metal ions in fruit juices

A. Hi Amanda. But why were you wondering that? Please post your situation that impels the question because then we will have some sense of what metals you want to analyze for, what interferences probably have to be considered and allowed for, what kind of equipment is reasonable (an international food distributor can spend more on instrumentation than a high schooler), etc. Thanks.

Regards,

A. This is chem lab stuff, really.

If you want to find out if a certain metal is present in a solution you can run a series of qualitative analysis using selective precipitation, which is a fancy way of saying you mix in some other chemicals that are known to form solids in the presence of certain metal ions, and via some deduction and process of elimination, figure out what's in there.

Once you know what metals are there and if you want to know how much is in there, I think the traditional method is AAS, atomic absorption spectroscopy [on eBay or Amazon], which is not something you're likely to see outside of university or a well-supplied analytical lab.