SINCE the technique of paper partition chromatography is generally inapplicable to fat-soluble substances, we have investigated the use of alumina impregnated filter paper for this purpose. We have ...

IN order to obtain a good separation in filter paper chromatography, the size of the spot of liquid applied to the paper must be small, which often necessitates repeated, time-consuming applications ...

Scientists used a 3D-printing approach to pattern hydrophobic barriers inside hydrophilic filter paper. These barriers, designed in different geometries, guide liquids along precise paths and shape ...