Prelaboratory Questions Name Laboratory Section 1. Read the Introduction and Procedure for this experiment, then answer the following ques- tions about preparing a TLC plate. a) Why must you hold the plate only by its edges? b) Why must you use a pencil and not a pen to draw the starting line that is 14 – ½ inch from the bottom end of the plate? c) Why must the starting pencil line be above the level of the solvent on the chamber? d) Why must the sample spot not be too concentrated?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
Prelaboratory Questions
Name
Laboratory Section
1. Read the Introduction and Procedure for this experiment, then answer the following ques-
tions about preparing a TLC plate.
a) Why must you hold the plate only by its edges?
b) Why must you use a pencil and not a pen to draw the starting line that is 14 – ½ inch
from the bottom end of the plate?
c) Why must the starting pencil line be above the level of the solvent on the chamber?
d) Why must the sample spot not be too concentrated?
(continued on next pa
Transcribed Image Text:Prelaboratory Questions Name Laboratory Section 1. Read the Introduction and Procedure for this experiment, then answer the following ques- tions about preparing a TLC plate. a) Why must you hold the plate only by its edges? b) Why must you use a pencil and not a pen to draw the starting line that is 14 – ½ inch from the bottom end of the plate? c) Why must the starting pencil line be above the level of the solvent on the chamber? d) Why must the sample spot not be too concentrated? (continued on next pa
Expert Solution
Step 1

The principle of TLC is 

adsorption at stationary phase--> desorption af --> dissolve--> movment with solvent.--> adsorbed.

 

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Analytical Separations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY