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Dialectics In Modern Physics by M.E. Omelyanovsky; Translator H.C. Creight

By M.E. Omelyanovsky; Translator H.C. Creight

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Advances in the Isolation of Aroma Precursors........................................ Conclusion...................................................................................... 33 48 49 52 54 54 58 59 62 66 INTRODUCTION Gas chromatography (GC) is considered to be the method of choice in the analysis of volatile compounds, because of its high resolving power and the availability of universal detection using flame ionization (FID) detectors. H. , Plenum Press, New York, 1991 33 34 CHAPTER 2 However, GC is mainly an analytical method and its application is limited when preparative isolation of volatile compounds is required.

76: 51-63. , MARSTON, A. 1986. Preparative Chromatography Techniques: Applications in Natural Product Isolation. Springer Verlag, Berlin, pp. 139. HOSTETIMANN, K. 1983. Droplet countercurrent chromatography. In: Advances in Chromatography. Vol. 21. C. Giddings, E. Gruschka, 1. R. ), Marcel Dekker, New York, pp 165-185. , HOSTETTMANN, K. 1990. Centrifugal partition chromatography in the separation of natural products. Phytochemical Analysis, in press. , GREEN, B. 1979. Vacuum liquid chromatography.

CONCLUSION As the above-mentioned examples show, centrifugal partition chromatography has become an indispensable addition to the techniques available for the separation and purification of natural products. The wide range of applications, varying from apolar to very polar substances and from milligram to gram quantities, proves the versatility of this newly introduced variant of liquid-liquid chromatography. The rapidity of the method is one of the most attractive NEW DEVELOPMENTS IN THE SEPARATIONS OF NATURAL PRODUCTS 27 attributes.

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