I want to know what are the major compounds in turmeric and a synthesis method to isolate and analyse them? If its a spectrometric method or a chromatographyic method?

Here is a link to an article that may help. Many references that may be of interest also.

Link: ftp://ftp.fao.org/es/esn/jecfa/cta/CTA_61_Curcumin.pdf