A combined procedure of ultrasound-assisted and supercritical carbon dioxide for extraction and quantitation oleanolic and ursolic acids from Hedyotis corymbosa
2016 ◽
Vol 79
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pp. 7-17
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2015 ◽
Vol 2015
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pp. 1-10
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2013 ◽
Vol 49
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pp. 542-553
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2017 ◽
Vol 97
(10)
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pp. 3323-3332
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2017 ◽
Vol 48
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pp. 202-211
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2014 ◽
Vol 1323
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pp. 18-27
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2015 ◽
Vol 95
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pp. 218-227
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