Comparison of counter-current chromatography and preparative high performance liquid chromatography applied to separating minor impurities in drug preparations.

[1]  G. Fan,et al.  Impurities preparation of sodium tanshinone IIA sulfonate by high-speed counter-current chromatography and identification by liquid chromatography/multistage tandem mass spectrometry. , 2013, Journal of chromatography. A.

[2]  Cheng Peng,et al.  Application of step-wise gradient high-performance counter-current chromatography for rapid preparative separation and purification of diterpene components from Pseudolarix kaempferi Gordon. , 2012, Journal of chromatography. A.

[3]  E. Mazzola,et al.  Preparative separation of 1,3,6-pyrenetrisulfonic acid trisodium salt from the color additive D&C Green No. 8 (pyranine) by pH-zone-refining counter-current chromatography. , 2011, Journal of chromatography. A.

[4]  S. Ignatova,et al.  Comparison of preparative reversed phase liquid chromatography and countercurrent chromatography for the kilogram scale purification of crude spinetoram insecticide. , 2011, Journal of chromatography. A.

[5]  P. Wei,et al.  Identification, Isolation, and Characterization of Impurities in Sodium Tanshinone IIA Sulfonate , 2009 .

[6]  S. Nam,et al.  Protective effect of the ethanol extract of Magnolia officinalis and 4-O-methylhonokiol on scopolamine-induced memory impairment and the inhibition of acetylcholinesterase activity , 2009, Journal of Natural Medicines.

[7]  G. Pauli,et al.  Performance characteristics of countercurrent separation in analysis of natural products of agricultural significance. , 2008, Journal of agricultural and food chemistry.

[8]  S. Ignatova,et al.  Rapid purification and scale-up of honokiol and magnolol using high-capacity high-speed counter-current chromatography. , 2007, Journal of chromatography. A.

[9]  Yoichiro Ito,et al.  Golden rules and pitfalls in selecting optimum conditions for high-speed counter-current chromatography. , 2005, Journal of chromatography. A.

[10]  Yuko Ito,et al.  Purification of quinoline yellow components using high-speed counter-current chromatography by stepwise increasing the flow-rate of the mobile phase. , 2003, Journal of chromatography. A.

[11]  Li-juan Chen,et al.  Isolation and identification of four flavonoid constituents from the seeds of Oroxylum indicum by high-speed counter-current chromatography. , 2003, Journal of chromatography. A.

[12]  Koda,et al.  Isolation and Characterization of Phenolic Compounds from Magnoliae Cortex Produced in China. , 1991 .