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26-6 What variables are likely to affect the selectivity factor a for a pair of analytes? 26-5 What are the differences between liquid-liquid and liquid-solid chromatography? List the variables that lead to zone broadening in chromatography. 264What are the major differences between gas-liquid and liquid liquid chroma- tography? Describe how the retention factor for a solute can be manipulated. CDescribe a method for determining the number of plates in a column. O Name two general methods for improving the resolution of two substances on a chromatographic column.

26-6 What variables are likely to affect the selectivity factor a for a pair of analytes? 26-5 What are the differences between liquid-liquid and liquid-solid chromatography? List the variables that lead to zone broadening in chromatography. 264What are the major differences between gas-liquid and liquid liquid chroma- tography? Describe how the retention factor for a solute can be manipulated. CDescribe a method for determining the number of plates in a column. O Name two general methods for improving the resolution of two substances on a chromatographic column.

Chemistry
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...
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ONLY 26-3 26-5 26-7 26-9 -same question just sub parts
uston (R) column resolution 26-6 What variables are likely to affect the selectivity factot a for a pair of analytes? 3 thy plate height 26-2 Describe the general elution problem. List the variables that lead to zone broadening in chromatography. 265 What are the differences between liquid-liquid and liquid-solid chromatogyphy? 264What are the major differences between gas-liquid and liquid liquid chroma- O eluent. 263 tography? Describe how the retention factor for a solute can be manipulated. Describe a method for determining the number of plates in a column.H O Name two general methods for improving the resolution of two substances on a chromatographic column. 10 Why does the minimum in a plot of plate height versus flow rate occur at lower flow rates with LC than with GC? 56-11 What is gradient elution? 36-12 List the variables in chromatography that lead to zone separation. OLD 13 What would be the effect on a chromatographic peak of introducing the sample p. at too slow a rate?
Transcribed Image Text:uston (R) column resolution 26-6 What variables are likely to affect the selectivity factot a for a pair of analytes? 3 thy plate height 26-2 Describe the general elution problem. List the variables that lead to zone broadening in chromatography. 265 What are the differences between liquid-liquid and liquid-solid chromatogyphy? 264What are the major differences between gas-liquid and liquid liquid chroma- O eluent. 263 tography? Describe how the retention factor for a solute can be manipulated. Describe a method for determining the number of plates in a column.H O Name two general methods for improving the resolution of two substances on a chromatographic column. 10 Why does the minimum in a plot of plate height versus flow rate occur at lower flow rates with LC than with GC? 56-11 What is gradient elution? 36-12 List the variables in chromatography that lead to zone separation. OLD 13 What would be the effect on a chromatographic peak of introducing the sample p. at too slow a rate?
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