math - 13-12-2012 at 17:17
Hello,
I'd like to know if there are any simple tests which could prove that X sample contains creatine monohydrate.
Thank you 
Dr.Bob - 13-12-2012 at 20:32
Try this one:
https://www.google.com/#hl=en&q=creatine+analysis
phlogiston - 14-12-2012 at 01:02
Briefly, mix a deproteinized sample with picric acid under alkaline conditions and measure absorbance at 520 nm
See also for instance:
http://www.isu.edu/~galisusa/CreatinineSOP.html
or google 'Jaffe reaction' for more.