Abstract
Oxindole alkaloids occurring in various species of Mitragyna were determined quantitatively by means of ultra-violet spectrophotometry, colorimety and densitometry after extracting the total alkaloid from the plant material and separating the individual alkaloids by thin-layer chromatography. The results showed that if there were few alkaloids in the plant there was little to choose between the three methods and that in each case the coefficient of variation was small but if a large number of alkaloids were present the results from all three methods showed greater coefficients of variation, those being obtained by densitometry being less reliable than the others.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
