Calculate linear velocity chromatography

• [DOC File]Solutions to Problem Set 26

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  d) the linear velocity of the mobile phase in the column. Assume that the exact retention time for the compound A (tR(A)) is 6.0 min and tR(B) = 7.8 min and that the width of the eluting peak at the baseline for compound A is 1.5 min and for compound B is 1.9 min. Also, the column yielding a tm = 0.9 min. 19.

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• [DOC File]GC ChemStation Data Analysis and Reporting (English)

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  The optimun linear velosity or column flowrate can be determined using the Van Deemter plot. 6.When would it be critical to carefully maintain the optimum linear velocity? When performing trace analyses and resolving very complex mixtures it is important to have the sharpest peaks, most optimum efficiency.

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• [DOC File]GAS CHROMATOGRAPHY - Pace University

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  Gas Chromatography. Introduction: ... A linear response to analyses that extends over. ... Elution By transportation in the mobile phase the solutes migrate with a velocity through the separation column which depends on the partition coefficients of the solutes between the …

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• [DOC File]Chromatography Basics - Intelliom

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  Homework 7 Chromatography. 1. Give ONE reason why a chromatographic band (a "plug" of molecules) tends to spread the longer it is on the separation column. ... system for non-interacting molecules (air, solvent, etc.). This is also called the dead time. This can be used to calculate the linear velocity of the solvent (MP) if the volumetric flow ...

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• [DOC File]EXAM # 1 - UNL

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  X - = linear velocity (flow-rate x Vm/L) Y - ... Calculate the capacity factors for each peak and the separation factor for the separation of A and B. ... Size-exclusion chromatography. _ii_. Capillary electrophoresis. _v_. Ion-exchange chromatography. _iv . Adsorption chromatography.

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• [DOC File]Column Chromatography

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  Chromatography is a technique in which compounds to be separated are distributed between a mobile phase and a stationary phase. In such a system, different distributions based on selective adsorption give rise to separation. ... Linear velocity of mobile phase. ... Calculate average linear rate of movement of the molecules of the mobile phase.

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• [DOC File]ChemStation for GC Data Analysis and Reporting (English)

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  The column flow, linear velosity, and pressure are determined based upon calculations dependent upon the column dimensions. ... Integration events should not be used to overcome poor chromatography! ... The chemstation software and GC require accurate knowledge of the column dimensions in order to calculate the pressure- linear velocity-flow ...

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• [DOCX File]1.Introduction - UvA/FNWI (Science) Education Service Centre

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  The average linear velocity is then calculated according to Eq. (16), and the result is used in Eq. 17 to calculate the value of the dead time. The parameters calculated in the previous equations are used to calculate the peak capacity in the first and in the second dimension via Eq. 27 The total analysis time is simply calculated with Eq.

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