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Many organic compounds are aromatic and thus absorb ultraviolet light. Simply shine UV over your TLC plate and observe the spots. If the compound isn't UV absorbing but has a double bond, a solution of KMnO4 can be used to visibly stain the compound on the TLC plate.

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Which chromatography to separate non volatile compounds?

Column chromatography is commonly used to separate non-volatile compounds based on their interactions with the stationary phase within the column. The compounds are separated as they travel at different rates through the column due to varying affinities to the stationary phase.


Why reverse phase chromatography is so called?

The first chromatography used was with polar stationary phase and non polar mobile phase, called normal phase. So, later when this was reversed by using polar mobile phase and non polar stationary phase was called reversed phase. Although reversed phase implies that it is less used, it is not the case. RPLC rose to success around the 1970s as NPLC dropped off.


What is normal and reverse chromatography?

normal chromatography based on polarity and non polarity principle If mobile phase is polar, compound is non polar,then non polar compound first elutes as peak and then followed by polar compound reverse chromatography is if the mobile phase is polar, the polar compound first elutes and then followed by non polar compound


What is the mobile phase of ion exchange chromatography?

The mobile phase as indicated is the moving phase. Either the mobile or stationary phase is polar and the other is Non-polar. A common polar phase is Methanol, and non-polar is hexane


Which of the compounds elute fast in reverse phase chromatography?

Compounds that are non-polar elute faster in reverse phase chromatography as the stationary phase is non-polar and retains polar compounds longer. Polarity of the compound determines its retention time in reverse phase chromatography.

Related Questions

Which chromatography to separate non volatile compounds?

Column chromatography is commonly used to separate non-volatile compounds based on their interactions with the stationary phase within the column. The compounds are separated as they travel at different rates through the column due to varying affinities to the stationary phase.


Why reverse phase chromatography is so called?

The first chromatography used was with polar stationary phase and non polar mobile phase, called normal phase. So, later when this was reversed by using polar mobile phase and non polar stationary phase was called reversed phase. Although reversed phase implies that it is less used, it is not the case. RPLC rose to success around the 1970s as NPLC dropped off.


What is normal and reverse chromatography?

normal chromatography based on polarity and non polarity principle If mobile phase is polar, compound is non polar,then non polar compound first elutes as peak and then followed by polar compound reverse chromatography is if the mobile phase is polar, the polar compound first elutes and then followed by non polar compound


What is the mobile phase of ion exchange chromatography?

The mobile phase as indicated is the moving phase. Either the mobile or stationary phase is polar and the other is Non-polar. A common polar phase is Methanol, and non-polar is hexane


Which sourcing solution is used to source Joint Expeditionary Taskings?

A non-standard sourcing solution


Which of the compounds elute fast in reverse phase chromatography?

Compounds that are non-polar elute faster in reverse phase chromatography as the stationary phase is non-polar and retains polar compounds longer. Polarity of the compound determines its retention time in reverse phase chromatography.


What are the key differences between reverse phase and normal phase chromatography techniques?

Reverse phase chromatography and normal phase chromatography are two common techniques used in separation and analysis of compounds. The key difference lies in the polarity of the stationary phase and mobile phase. In reverse phase chromatography, the stationary phase is non-polar and the mobile phase is polar, while in normal phase chromatography, the stationary phase is polar and the mobile phase is non-polar. This difference in polarity affects how compounds interact with the stationary phase, leading to differences in retention times and separation capabilities.


What kind of species can be separated by high performance liquid chromatography but not gas chromatography?

Polar and non-volatile compounds, such as large biomolecules like proteins or carbohydrates, can be separated by high performance liquid chromatography but not gas chromatography due to differences in their chemical properties and interaction with the stationary phase. Gas chromatography is more suitable for separating volatile and non-polar compounds based on their volatility and interaction with the stationary phase.


What forms a non electrolyte solution in water?

Some examples of a non-electrolyte solution in water would be a solution of sugar, or a solution of urea. These do no ionize in solution and so are non-electrolytes.


Would form a non-electrolyte solution in water?

Some examples of a non-electrolyte solution in water would be a solution of sugar, or a solution of urea. These do no ionize in solution and so are non-electrolytes.


Would form a non electrolyte solution in water?

Some examples of a non-electrolyte solution in water would be a solution of sugar, or a solution of urea. These do no ionize in solution and so are non-electrolytes.


Would form non electrolyte solution in watered?

Some examples of a non-electrolyte solution in water would be a solution of sugar, or a solution of urea. These do no ionize in solution and so are non-electrolytes.