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- He, X., et al.
(författare)
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Purification of puerarin by beta-cyclodextrin coupled Superose 12 pg
- 2003
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Ingår i: Chin. J. Chromatogr.. ; 21, s. 610-
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Tidskriftsartikel (refereegranskat)abstract
- Puerarin is a kind of Chinese traditional medicine, which has the good medical function to hypertension and angina. In this study puerarin was purified by low-pressure liquid chromatography. The experimental conditions, such as mobile phase, the stationar
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- He,, X., et al.
(författare)
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Purification of the isoflavonoid puerarin by adsorption chromatography on cross-linked 12% agarose
- 2004
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Ingår i: J. Chromatogr. A. ; 1057:1-2, s. 95-100
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Tidskriftsartikel (refereegranskat)abstract
- The isoflavonoid puerarin in extracts of the well-known traditional Chinese drug Radix puerariae (root of the plant Pueraria lobata) can be separated from other isoflavonoids by adsorption chromatography on the cross-linked 12% agarose gel Superose 12 equilibrated in distilled water. The adsorption is totally quenched by the addition of 50% acetic acid. The separation of the isoflavonoids is tentatively ascribed to interaction with the residues of the cross-linking reagents used in the manufacturing process of Superose 12. Thus, no useful separation can be achieved with non-cross-linked 12% agarose gel media. Symmetric elution profiles at high sample loadings (16 mg on a 24 ml column) suggest linear adsorption isotherms for the isoflavonoids.
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- Matas, J., et al.
(författare)
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Comparison of face verification results on the XM2VTS database
- 2000
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Ingår i: Proceedings of the 15th International Conference on Pattern Recognition (ICPR'00) - Volume 4. - 0769507506 ; , s. 858-863
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The paper presents results of the face verification contest that was organized in conjunction with International Conference on Pattern Recognition 2000 [14]. Participants had to use identical data sets from a large, publicly available multimodal database XM2VTSDB. Training and evaluation was carried out according to an a priori known protocol ([7]). Verification results of all tested algorithms have been collected and made public on the XM2VTSDB website [15], facilitating large scale experiments on classifier combination and fusion. Tested methods included, among others, representatives of the most common approaches to face verification - elastic graph matching, Fisher's linear discriminant and Support vector machines.
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