Question

In: Chemistry

You are trying to find an appropriate solvent to use as a TLC mobile phase. Pure...

You are trying to find an appropriate solvent to use as a TLC mobile phase. Pure hexanes hardly move your sample from the baseline. Preferably, you would like to bring this sample spot to an Rf = 0.35, describe the steps you could take to accomplish this goal.

Solutions

Expert Solution


Related Solutions

Why is it better to use a volatile solvent for the mobile phase of Thin Layer...
Why is it better to use a volatile solvent for the mobile phase of Thin Layer Chromatography
Which is the best HPLC mobile phase solvent to use if the analytes absorb in the...
Which is the best HPLC mobile phase solvent to use if the analytes absorb in the UV region of 210 nm? Briefly describe two other mobile phase characteristics that should be considered in HPLC analysis. List two conditions that may cause the HPLC pump pressure to become excessively high and how to resolve it without damaging the pump.
In thin-layer chromatography (TLC), the _________[ Select ] ["mobile phase", "stationary phase"] is usually silica gel...
In thin-layer chromatography (TLC), the _________[ Select ] ["mobile phase", "stationary phase"] is usually silica gel or alumina, and THE [ Select ] ["mobile phase", "stationary phase"] is usually an organic solvent or mixture of organic solvents. ANSWER THE QUESTION BY FILL IN THE BLANK 2 OPTIONS MOBIL PHASE OR STATIONARY PHASE. PLEASE DONT GIVE ANY WRONG ANSWERS AND THANKS FOR YOUR HELP !
TLC analysis of an unknown sample using pure ethyl acetate as a developing solvent gives a...
TLC analysis of an unknown sample using pure ethyl acetate as a developing solvent gives a single spot with an Rf value of 0.08. A. Explain why this result doesn't guarantee that the sample is a pure compound. B. Suggest two changes that could be made to the experiment to improve the analysis of the unkonwn sample.
when we performed the TLC experiment, the class chose a mixture for the mobile phase of...
when we performed the TLC experiment, the class chose a mixture for the mobile phase of 80 % ethyl acetate and 20 % hexanes. why was this composition chosen
What issue would you run into if you used 100% 18M acetic acid as your TLC (Thin Layer Chrom.) solvent in a normal phase TLC run?
  What issue would you run into if you used 100% 18M acetic acid as your TLC (Thin Layer Chrom.) solvent in a normal phase TLC run?  
TLC (thin layer chromatography), how does it work? How would changing the stationary vs mobile phase...
TLC (thin layer chromatography), how does it work? How would changing the stationary vs mobile phase effect the movement of molecules?
If you were to have performed a TLC analysis of ferrocene and acetylferrocenesamples using pure diethyl...
If you were to have performed a TLC analysis of ferrocene and acetylferrocenesamples using pure diethyl ether (rather than as the more polar solvent in a 1:1 mixture with the less polar petroleum ether), which of the two spots would have a greater Rf? Explain briefly.
Design the Use Case Diagram and the test cases for Online Mobile Store Use Cases Phase...
Design the Use Case Diagram and the test cases for Online Mobile Store Use Cases Phase II
description 
 Example: Online Computer Store Requirement 1 – Laptops Requirement 2 - Desktops Requirement 3 - Mainframes Use Cases Testing phase 2 Requirement 1 - Laptops - Test case Requirement 2 - Desktops Requirement 3 - Mainframes
You are trying to determine the structure of a protein that you know is pure. You...
You are trying to determine the structure of a protein that you know is pure. You carry out a series of experiments on this protein. The results are listed below. Describe what you can determine about the protein’s structure. (For example, what can you determine about the protein’s molecular weight, primary, secondary, tertiary, quaternary structure?) · Size exclusion chromatography of the native protein indicates an apparent molecular weight of 160,000. · SDS polyacrylamide gel electrophoresis of the protein carried out...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT