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TLC can be used to help determine the number of components in a mixture, the identity of
compounds, and the purity of a compound. By observing the appearance of a product or the
disappearance of a reactant, it can also be used to monitor the progress of a reaction.
The sample is applied to the layer of adsorbent, near one edge, as a small spot of a solution.
After the solvent has evaporated, the adsorbent-coated sheet is propped more or less vertically in
a closed container, with the edge to which the spot was applied down. The spot on the thin layer
plate must be positioned above the level of the solvent in the container .If it is below the level of
the solvent, the spot will be washed off the plate into the developing solvent. The solvent, which
is in the bottom of the container, creeps up the layer of adsorbent, passes over the spot, and, as it
continues up, effects a separation of the materials in the spot ("develops" the chromatogram).
When the solvent front has nearly reached nearly the top of the adsorbent, the thin layer plate is
removed from the container.
Solution
TLC can be used to help determine the number of components in a mixture, the identity of
compounds, and the purity of a compound. By observing the appearance of a product or the
disappearance of a reactant, it can also be used to monitor the progress of a reaction.
The sample is applied to the layer of adsorbent, near one edge, as a small spot of a solution.
After the solvent has evaporated, the adsorbent-coated sheet is propped more or less vertically in
a closed container, with the edge to which the spot was applied down. The spot on the thin layer
plate must be positioned above the level of the solvent in the container .If it is below the level of
the solvent, the spot will be washed off the plate into the developing solvent. The solvent, which
is in the bottom of the container, creeps up the layer of adsorbent, passes over the spot, and, as it
continues up, effects a separation of the materials in the spot ("develops" the chromatogram).
When the solvent front has nearly reached nearly the top of the adsorbent, the thin layer plate is
removed from the container.

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TLC can be used to help determine the number of components in a mixt.pdf

  • 1. TLC can be used to help determine the number of components in a mixture, the identity of compounds, and the purity of a compound. By observing the appearance of a product or the disappearance of a reactant, it can also be used to monitor the progress of a reaction. The sample is applied to the layer of adsorbent, near one edge, as a small spot of a solution. After the solvent has evaporated, the adsorbent-coated sheet is propped more or less vertically in a closed container, with the edge to which the spot was applied down. The spot on the thin layer plate must be positioned above the level of the solvent in the container .If it is below the level of the solvent, the spot will be washed off the plate into the developing solvent. The solvent, which is in the bottom of the container, creeps up the layer of adsorbent, passes over the spot, and, as it continues up, effects a separation of the materials in the spot ("develops" the chromatogram). When the solvent front has nearly reached nearly the top of the adsorbent, the thin layer plate is removed from the container. Solution TLC can be used to help determine the number of components in a mixture, the identity of compounds, and the purity of a compound. By observing the appearance of a product or the disappearance of a reactant, it can also be used to monitor the progress of a reaction. The sample is applied to the layer of adsorbent, near one edge, as a small spot of a solution. After the solvent has evaporated, the adsorbent-coated sheet is propped more or less vertically in a closed container, with the edge to which the spot was applied down. The spot on the thin layer plate must be positioned above the level of the solvent in the container .If it is below the level of the solvent, the spot will be washed off the plate into the developing solvent. The solvent, which is in the bottom of the container, creeps up the layer of adsorbent, passes over the spot, and, as it continues up, effects a separation of the materials in the spot ("develops" the chromatogram). When the solvent front has nearly reached nearly the top of the adsorbent, the thin layer plate is removed from the container.