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प्रश्न
Compare TLC and Paper Chromatography techniques.
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उत्तर
| Chromatography technique | TLC | Paper chromatography |
| Principle | It is based on the principle of differential adsorption. Different solutes are adsorbed on an adsorbent to a different extent. | It is based on the continuous differential partitioning of components of a mixture between stationary and mobile phases. |
| Stationary phase | Solid (adsorbent like silica gel or alumina over a glass plate) | Liquid (water trapped in the fibres of a paper) |
| Mobile phase | Liquid (single solvent/mixture of solvents) | Liquid (single solvent/mixture of solvents) |
| Visualization of components of a mixture | Similar to TLC the coloured components are visible as coloured spots and the colourless components are observed under UV light or using a spraying agent. | |
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संबंधित प्रश्न
Which separation technique will you apply for the separation of the following?
Different pigments from an extract of flower petals.
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Chromatography
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Dyes of an ink
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- Give the technique of separation of the mixture.
Give a reason for the following statement:
In chromatography the absorbent medium e.g. What man filter paper is known as the stationary phase.
Choose the correct option.
Colourless components on chromatogram can not be observed by the following:
Give names of two materials used as stationary phase in chromatography.
Define the Stationary phase.
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Label the diagram and explain the process in your words.
The principle involved in paper chromatography is ______.
Paper chromatography is ______.
In chromatography technique, the purification of compound is independent of ______.
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Complex mixtures are separated by ______.
In chromatography, the mobile phase is usually ______.
Who first described the method of chromatography?
