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1,3-alternate calixarene-bonded silica stationary phases. Effect of calixarene skeleton substituents on the retention mechanism and column selectivityPublikacja
Four novel 1,3-alternate calixarene-bonded silica gel stationary phases possessing different aromatic and aliphatic substituents at the upper rim (CalixNph, CalixBph, CalixHex and CalixDdc) were prepared and structurally characterized. The comparison and selectivity of these phases was done by using alkylbenzenes, fatty acid p-bromophenacyl esters, aromatic positional isomers and polynuclear aromatic hydrocarbons as analytes....