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  • distance traveled
  • Rf is the distance moved by the component divided by the distance traveled up the paper by the solvent as can be seen in the adjacent diagram. (blogspot.in)
  • For example, if the component traveled 5 cm (distance 'a' in the adjacent diagram) and the solvent traveled 15 cm (distance 'b' in the adjacent diagram), then the Rf value of that particular component will be 5/15 or (a/b) i.e., (distance traveled by paper/distance traveled by the solvent) = 0.3. (blogspot.in)
  • different
  • The ink will also be attracted to the paper, to itself, and to the water differently, and thus a different component will move a different distance depending upon the strength of attraction to each of these objects. (sciencebuddies.org)
  • After few hours, the paper is turned at a right angle, 90degree, clockwise, to the direction of first run with a different solvent. (blogspot.in)
  • This was all about different techniques of paper chromatography. (blogspot.in)
  • adhesion
  • The attraction of the water to the paper (adhesion force) is larger than the attraction of the water to itself (cohesion force), hence the water moves up the paper. (sciencebuddies.org)
  • upward
  • Otherwise, the sheet may be rolled as a cylinder, tied together with fine thread and placed upright with the spots as the bottom in a large Petridish for upward movement of solvent (ascending chromatography). (biocyclopedia.com)
  • Diagram
  • This paper is tied parallel (in a horizontal way) to the petri-plate which contains the solvent (As can be seen in the 'side view' diagram). (blogspot.in)
  • uses
  • You can find out more about the science and uses of chromatography at www.sciencebuddies.org/mentoring/project_ideas/Chem_p008.shtml Or, you can just add a few pipe cleaners to make butterflies, and move on from science to art. (blogspot.com)