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1:19 7:52 Suggested clip Resolution of chromatography — YouTubeYouTubeStart of suggested client of suggested clip Resolution of chromatography — YouTube
Equation (1) indicates that the resolution is the difference between peak retention times divided by the average peak width. In a peak with Gaussian distribution, the peak width is W = 4 (where is the standard deviation) and the peak FHM is W0.5h = 2.354.
1:44 7:52 Suggested clip Resolution of chromatography — YouTubeYouTubeStart of suggested client of suggested clip Resolution of chromatography — YouTube
The resolution of an elation is a quantitative measure of how well two elation peaks can be differentiated in a chromatographic separation. It is defined as the difference in retention times between the two peaks, divided by the combined widths of the elation peaks.
A resolution value of 1.5 or greater between two peaks will ensure that the sample components are well (baseline) separated to a degree at which the area or height of each peak may be accurately measured. Calculation of Chromatographic Resolution (RS)
f) The retention factor (k) is the ratio of the amount of analyte in the stationary phase to the amount in the mobile phase. It is generally calculated by k' = (tR — TM)/TM = tRy'/TM. g) The selectivity factor () of a column for two analytes (A eluting before B) is given by = KB/A = k'(B)/k'(A) = tRy'(B)/tR'(A).
The resolution of an elation is a quantitative measure of how well two elation peaks can be differentiated in a chromatographic separation. It is defined as the difference in retention times between the two peaks, divided by the combined widths of the elation peaks.
Resolution and Separation Factor, Retention Factor, Number of Theoretical Plates. ... The separation factor is defined as the ratio of the retention factors (k), as shown in equation (3).
Column efficiency, also known as plate count, is a measure of the dispersion of a peak. Narrow peaks take up less space in the chromatogram and thus allow more peaks to be separated. ... Efficiency is usually explained using the concept of theoretical plates.
Socratic and gradient. Socratic means that the mixture of your mobile phase is consistent over the complete testing time. Using a gradient implies that the compounding of the fluent mixture is changed during measurement and so influences the retention of analytes.

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