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• W2155803178 abstract "An efficient method for purification of alkaloids from Corydalis yanhusuo W. T. Wang using HPLC was developed, featuring a polar-copolymerized stationary phase named C18HCE. As ionizable solutes, the crude alkaloid sample often suffered from serious peak tailing problem on conventional RP-LC columns, and the separation would rapidly became destroyed with the increasing of load amount. However, on the new stationary phase, good peak shapes (asymmetry factor <1.5) as well as good loadability were easily obtained in a commonly used acidic mobile phase condition. The loading amount could reach 10 mg per injection on an analytical C18HCE column for laboratory-scale purification. About 6.8 mg of palmatine (HPLC purity >98%) and 44.4 mg of dehydrocorydaline (HPLC purity >98%) were rapidly derived from 200 mg of the crude alkaloid sample, and the recoveries of these two compounds were 76.5 and 81.7%, respectively. The purified alkaloids were characterized by comparing retention times with standard compounds as well as (1)H-NMR data. The new method is simple and high yielding, and it may provide a promising tool for purification of alkaloids as well as other alkaline compounds." @default.
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• W2155803178 date "2010-12-03" @default.
• W2155803178 modified "2023-10-18" @default.
• W2155803178 title "High-performance purification of quaternary alkaloids from <i>Corydalis yanhusuo W. T. Wang</i> using a new polar-copolymerized stationary phase" @default.
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• W2155803178 doi "https://doi.org/10.1002/jssc.201000625" @default.
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