Control of the Selectivity of Separation and the Determination of Anthocyanins of Fruits of Vaccinium Family Plants Using Acetonitrile–Formic Acid–Water Eluents

It is shown that the selectivity of the separation of 15 anthocyanins from an extract of bilberries (3-galactosides, 3-glucosides and 3-arabinosides of the five main anthocyanins: cyanidin, peonidin, delphinidin, petunidin, and malvidin) with eluents containing acetonitrile and 10 vol % HCOOH in water can be controlled by varying the concentration of acetonitrile and separation temperature. A gradient mode at a separation temperature of 25°C is...