types of filter paper used in paper chromatography
Filter paper Chromatography is a method chemists use to separate compounds. This type of filter paper has specific water flow rate and absorption speed to maximize the result of paper chromatography. The absorption speed of this type of filter paper is from 6 cm to 18 cm and the thickness is from 0.17 mm from 0.93 mm.[6]
Photographic film The first flexible photographic roll film was sold by George Eastman in 1885,[9] but this original "film" was actually a coating on a paper base. As part of the processing, the image-bearing layer was stripped from the paper and attached to a sheet of hardened clear gelatin. The first transparent plastic roll film followed in 1889.[10] It was made from highly flammable nitrocellulose ("celluloid"), now usually called "nitrate film".