Rapid and novel discrimination and quantification of oleanolic and ursolic acids in complex plant extracts using two-dimensional nuclear magnetic resonance spectroscopy—Comparison with HPLC methods
2009 ◽
Vol 635
(2)
◽
pp. 188-195
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2012 ◽
Vol 4
(6)
◽
pp. 75-85
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2001 ◽
Vol 49
(1)
◽
pp. 2-8
◽
2002 ◽
Vol 31
(2)
◽
pp. 375
◽
2011 ◽
pp. 361-385