You have 3 compounds (A, B, C) in your samples. Their polarity A > B > C. You want to separate these compounds using a HPLC equipment. You also want to collect A firstly. Which of the following condition is the best? Octadecyl-modified silica as the stationary phase and hexane as the mobile phase. Octadecyl-modified silica as the stationary phase and acetone as the mobile phase. Nitriles-modified silica as the stationary phase and water as the mobile phase. Nitriles-modified silica as the stationary phase and pentane as the mobile phase.

You have 3 compounds (A, B, C) in your samples. Their polarity A > B > C. You want to separate these compounds using a HPLC equipment. You also want to collect A firstly. Which of the following condition is the best? Octadecyl-modified silica as the stationary phase and hexane as the mobile phase. Octadecyl-modified silica as the stationary phase and acetone as the mobile phase. Nitriles-modified silica as the stationary phase and water as the mobile phase. Nitriles-modified silica as the stationary phase and pentane as the mobile phase.

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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