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- W945905699 abstract "Publisher Summary Alkaloids are a heterogeneous group of organic compounds containing a tertiary or quaternary amino group in the molecule; only a few alkaloids contain a secondary amino group. In the past, alkaloids have been isolated almost exclusively from vegetable material; while currently, attempts are being made to prepare many of them synthetically or by partial syntheses or to prepare derivatives that are unknown in natural material. Chromatographic procedures have been first used for the purification of single alkaloids or whole groups, for separations from ballasts or other drugs, and followed by isolation or determination by classical methods of analysis. The introduction of flat-bed procedures (paper and thin-layer chromatography) brought about a revolution in alkaloid analysis especially in the identification and determination of structurally related alkaloids (ergot, opium, rauwolfia alkaloids, etc.). As mobile phases for sorbents with fixed buffer solutions, diethyl or chloroform is most commonly used that is saturated with the corresponding buffer." @default.
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- W945905699 date "1975-01-01" @default.
- W945905699 modified "2023-09-27" @default.
- W945905699 title "Chapter 39 Alkaloids" @default.
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- W945905699 doi "https://doi.org/10.1016/s0301-4770(08)61203-8" @default.
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