3C Paper Chromatography by https://padlet.com/neo_si_lie_charles/p0jzieos5n7a Made with a lightning strike of genius en-us 2018-01-23 10:17:34 UTC 2018-01-30 02:14:30 UTC hello@padlet.com WHAT TYPE OF MIXTURE CAN BE SEPARATED BY PAPER CHROMATOGRAPHY? 4bid21 https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225364882 Mixtures that are suitable for separation by chromatography include inks, dyes and colouring agents in food. Simple chromatography is carried out on paper. A spot of the mixture is placed near the bottom of a piece of chromatography paperand the paper is then placed upright in a suitable solvent, eg water.


]]> 2018-01-28 11:05:51 UTC https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225364882 PAPER CHROMTOGRAPHY https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225467661 What is paper chromatography? 
Paper chromatography is an analytical method used to separate colored chemicals or substances. It is primarily used as a teaching tool, having been replaced by other chromatography methods, such as thin-layer chromatography                                                                                             ]]> 2018-01-29 02:09:34 UTC https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225467661 ONE EXAMPLE OF PAPER CHROMATOGRAPHY : https://www.youtube.com/watch?v= Step 1: Gather the Needed Materials (coffee Filter, Pencil, Beaker, Water Soluble Pen/marker, Water) https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225468400  Step 2: Cut a Strip of Filter Paper From the Coffee Filter and Using the Marker Draw a Thick Line Near the Bottom of the Filter Paper- About 1/4 Inch From the Bottom. Once this is completed, carefully attach the strip to the pencil in order to suspend the strip over the water in the beaker. Make sure the ink does not touch the water-only the bottom of the filter paper should touch the water.

Step 3: Allow the Water to Move Up the Paper for Approx. 5 Minutes and Then Remove the Strip From the Water. After about 5 minutes, hang the chromatogram on the side of the table to dry. This can then be taped to the attached worksheet if you choose to use it.

Step 4: Students Should Identify the Individual Colors in the Chromatogram That Make Up the Markers Unique Mix of Ink. 



]]> 2018-01-29 02:16:26 UTC https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225468400 WHAT ARE THE PRECAUTIONS, IF ANY, TO TAKE NOTE OF THE GIVEN METHOD? https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225468775
  • Use a pencil to draw a thin line near the bottom of the paper. Make sure it is not too near the bottom.
  • Mark a cross for each mixture on the line.
  • Mark a spot of color/dye/mixture on each respective crosses and allow to dry.
  • Put chromatography paper in solvent. Ensure top of solvent does not cover the mixture.
  • Observe as spots move up the chromatography paper.

    • ]]>     2018-01-29 02:19:35 UTC https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225468775     WHAT ARE THE APPLICATION OF THE METHODS? https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225468942 Paper chromatography has evolved over the years and has found widespread applications in separation of molecules of different polarities. Innumerable applications have been reported in analysis of different classes of compounds such as:

    • Amino acids and organic acids
    • Alkaloids
    • Polysaccharides
    • Proteins and peptides
    • Natural and artificial pigments
    • Inorganic cations
    • Plant extracts
    ]]>     2018-01-29 02:21:25 UTC https://padlet.com/neo_si_lie_charles/p0jzieos5n7a/wish/225468942