First, let's cover the basics. A pure substance is made from only one compound or just one element with no other substances mixed in. Hold up those two glasses, Katie. Imagine the pompoms ...

First, let's cover the basics. A pure substance is made from only one compound or just one element with no other substances mixed in. Hold up those two glasses, Katie. Imagine the pompoms ...

We have tested the MMCD's metabolite analysis tool both on mixtures of pure compounds and on metabolite extracts assigned by hand. In the case of the standard mixtures, four solutions were ...