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Characterisation of pyrrolizidine alkaloids by gas, thin-layer and paper chromatography

✍ Scribed by A.H. Chalmers; C.C.J. Culvenor; L.W. Smith

Publisher
Elsevier Science
Year
1965
Tongue
English
Weight
789 KB
Volume
20
Category
Article
ISSN
1873-3778

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produccs a curved segment a t lower pH values.8 In calculating the purity and ionization constant, only the linear portion of each plot was used. Nevertheless, it may be seen (Table 11) that the intercept obtained (and therefore the purity evaluated) is not markedly influenced by the choice of activ