The table contains data for a liquid chromatography separation of four compounds, A, B, C, and D, on a 25.0 cm column. Retention Width at the Compound time (min) base (min) A 5.14 0.448 13.0 1.08 C 14.0 1.15 D 23.6 1.89 Calculate the number of theoretical plates, N, for each peak. NA = NB = Nc = Np = What is the average number of theoretical plates, Nave , for the column? Navg

The table contains data for a liquid chromatography separation of four compounds, A, B, C, and D, on a 25.0 cm column. Retention Width at the Compound time (min) base (min) A 5.14 0.448 13.0 1.08 C 14.0 1.15 D 23.6 1.89 Calculate the number of theoretical plates, N, for each peak. NA = NB = Nc = Np = What is the average number of theoretical plates, Nave , for the column? Navg

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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Question

# Chromatography Data Analysis

The table below contains data for a liquid chromatography separation of four compounds, A, B, C, and D, on a 25.0 cm column.

| Compound | Retention Time (min) | Width at the Base (min) |
|----------|----------------------|-------------------------|
| A | 5.14 | 0.448 |
| B | 13.0 | 1.08 |
| C | 14.0 | 1.15 |
| D | 23.6 | 1.89 |

**Calculate the number of theoretical plates, \( N \), for each peak.**

\[ N_A = \]
\[ N_B = \]

\[ N_C = \]
\[ N_D = \]

**What is the average number of theoretical plates, \( N_{avg} \), for the column?**

\[ N_{avg} = \]

These calculations help evaluate column efficiency in chromatography, essential for understanding separation quality.

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