1. In thin layer chromatography (TLC), why do you need to use a pencil in marking the spots, origin, and solvent front and not a marker? 2. Why is it necessary to mark the solvent front immediately? 3. Why do you need to ensure that the loading spot is above the solvent level in paper chromatography? 4. Why do different compounds travel different distances on the piece of paper?

1. In thin layer chromatography (TLC), why do you need to use a pencil in marking the spots, origin, and solvent front and not a marker? 2. Why is it necessary to mark the solvent front immediately? 3. Why do you need to ensure that the loading spot is above the solvent level in paper chromatography? 4. Why do different compounds travel different distances on the piece of paper?

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter88: Column Chromatography

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

When you prepare your sample to run through the column chromatography , what is the first proper action you should do if you notice that your sample did not fully dissolve? A)Add a small amount of the sample B)Boil the sample mixture C)Use the rotovap D)Use a different solvent
1. How does chromatography separate the components of leave samples? 2. Can you use chromatography to purify a mixture? why? 3. What is Rf value and its significance in chromatography?
Chromatography is a separation technique. What is the physical or chemical basis for separation of compounds during thin layer chromatography?
what is chromatography? Explain different types of chromatography and explain how to seperate compounds. indicate stationary phase mobile phase.
When using gas chromatography, how is optimum column efficiency obtained? A. When the samples are injected quickly and in small quantities B. When the samples are injected slowly and in small quantities C. When the samples are injected slowly and in large quantities D. None of the above E. When the samples are injected quickly and in large quantities
Please answer these questions for ion chromatography?
Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what happens in this situation: Sample spots too big
Which statement is true? Statement 1: In chromatography, the compound mixture moves along with the mobile phase through the stationary phase and the components get separated depending on the degree of interaction and adhesion Statement 2: Compound A is more soluble in the mobile phase compared to compound B. Thus, compound A would most probably have a higher Rf value.
Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what happens in this situation: The solvent is above the line where the sample spots are