I only really need like 1-5 grams of each for developing methods on the different chromatographs i have, i basically just want to make a rough stock solution to fine tune each setup before buying reference standards.
The reference standards for these are pretty widely available. I mean you can make your own stock solutions - but since the CRMs are not terribly expensive - why not just start there?
Then you don’t have to worry about purity and contaminates and all that jazz in your stock solutions.
Id honeslty rather tune my setups in the beginning with not perfect samples. Ive done method dev with pure standards to find that actual samples down the road co elute other shit. Id also like the ability to spike other samples but not pay an arm and a leg per MG to do it lol.
I will use standards for actual testing but for now id still rather have some samples on hand to work with as well.