Not really possible. The simplest setup for analyzing metals in foods and juices (and supplements) is atomic absorption spectroscopy, which involves digesting

Not really possible. The simplest setup for analyzing metals in foods and juices (and supplements) is atomic absorption spectroscopy, which involves digesting the sample in strong nitric acid IIRC. AAC setups appear to range from $5,000 to $25,000 (depending on features like multi-sample processing automation etc.) at present. A lab capable of safely handling nitric acid digestion (fumes a bit) needs an effective chemical fume hood, which are at least $20,000 for a fairly basic small hood, and each metal you want to test for requires a separete protocol. See for example: https://www.epa.gov/sites/default/files/2015-12/documents/7000b.pdf https://www.epa.gov/sites/default/files/2015-12/documents/70... You can do a bunch of different metals at once with ICP-MS but those systems cost around 10X as much as AAC.