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- What are some ways to visualize a TLC plate? Why may it be necessary to have more than one method to visualize a TLC plate?Regarding TLC plates: a) When spotting a TLC plate, are small spots or large spots better? Or does the size of the spots not matter? b) Do separation of compounds on a TLC plate depends primarily on polarity, boiling point, molecular weight, melting point, or density?How is TLC used to determine the purity of a sample?
- The TLC and mp data contradict one another with regards to purity. True FalseWhy HPLC is an important technique in the fields of chemistry . explain with different reasons?Although TLC is qualitative and tells you what is present in a given sample, it can also be used to determine where a compound might be lost: What samples could you test on a single TLC plate that might give you this information?
- A student ran a TLC plate using a 90:10 hexane:ethyl acetate developer and this was the outcome. How can they improve their next trial?Chemistry What are the major differences between GC and HPLC, discuss the types of samples among other differences.Please answer these questions about the spectrophotometric Analysis of commercial aspirin
- What is the importance of paper chromotography? What is the usage of paper chromotography in the food industry? Who invented paper chromotography?Of these compounds, which is visible under UV light on a TLC plate and which are visible only when a stain is used? Why?Aside from TLC and paper chromatography, what are the other types of chromatography. Discuss their principles, applications and limitations.