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प्रश्न
What criterion is followed for the selection of the stationary phase in chromatography?
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उत्तर १
The stationary phase is selected in such a way that the components of the sample have different solubilities in the phase. Hence, different components have different rates of movement through the stationary phase and, as a result, can be separated from each other.
उत्तर २
A material that has a strong ability to absorb contaminants should be used as the stationary phase. Additionally, the stationary phase should have a higher capacity to adsorb contaminants than the element that needs to be cleaned. This will make it easier for the element to elute.
संबंधित प्रश्न
Name the method of refining of metals such as Germanium.
Explain:
Zone refining
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
Outline the principles of refining of metals by the following method:
Vapour phase refining
Outline the principles behind the refining of metals by the following methods:
Chromatographic method
Write the principle behind the following methods of refining:
Vapour-phase refining
What happens when Copper matte is charged into silica lined converter and hot air blast is blown?
What happens when NaCN is added in an ore containing PbS and ZnS during concentration by froth floatation method?
Name the method of refining which is Used to obtain semiconductor of high purity.
Name the method of refining which is Used to obtain low boiling metal.
Zone refining is based on the principle that ______.
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Refining using liquation method is the most suitable for metals with ______.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
