Guest guest Posted June 12, 2007 Report Share Posted June 12, 2007 Along these lines... I know that some reputable companies perform HPLC (high performance liquid chromatography) analysis. I have no idea how this is done, but is it very expensive to do? I would like to compare a similar formula from different manufacturers - if reasonable! Geoff , " Alon Marcus " <alonmarcus wrote: > > No the herb is jin bu huan, unfortunately chen and chen do not have chemical composition for this herb, I know tetrahydropalmatine is the major analgesic active ingredient in yan hu suo > > Alon Quote Link to comment Share on other sites More sharing options...
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