German China

2D Field Flow Fractionation Opens Door to New Separations

Editor: Doris Popp

Postnova Analytics powerful EAF4 technology combines the principle of Electrical and Asymmetrical Flow Field-Flow Fractionation in one system.

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The EAF2000 series
The EAF2000 series
(Source: Postnova Analytics)

Electrical and Cross Flow Fields can now be applied in one Field-Flow Fractionation (FFF) channel opening up completely new routes for separations which are based on particle size / molar mass and also on particle / molecule charge. This technological advance delivers additional sample information and adds a true second dimension of separation to Flow FFF. The EAF2000 series from Postnova Analytics is a field-proven 2D FFF system which can be used as traditional Asymmetric Flow FFF or as a hybrid FFF system utilizing both separation forces in the same channel simultaneously. This allows particle size and molar mass separations induced by the crossflow field and also charge separations by electrophoretic mobility induced by the electrical field.