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The hydrocarbon group types analysis of a large number of petroleum products by HPLC equipped with columns of suitable selectivity is described. An effective approach to the factors influencing the specificity of the columns was developped and stationary phases were synthetised in fonction of the products to be separated. All new phases were characterized by elemental, 29Si and 13C NMR analyses. The potentialities of theses phases were illustrated by analysis of selected samples either of fundamental or of industrial interest.
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Félix et al. (1987) studied this question.
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