How to Solve the Retention Time of the Unretained Peak - Search Videos

Retention Factor in Chromatography | Overview & Formula

Retention Factor in Chromatography | Overview & Formula

123K viewsDec 26, 2015

Study.comNathan Crawford

SOLVED: A peak with retention time of 407 has a width at half-height (W1/2) of 7.6 s. A neighboring peak is eluted 17 s later with W1/2 of 9.4. A compound that is known not to be retained was eluted in 2.5 s. The peaks are not baseline resolved. How many theoretical plates would be needed to achieve a resolution of 1.5?A. 2.46 x 10^4B. 1.57 x 10^2C. 2.06 x 10^4D. 2.53 x 10^4E. 2.43 x 10^4

SOLVED: A peak with retention time of 407 has a width at half-height (…

101 viewsSep 24, 2023

Retention Ratio (Definition, Formula) | How to Calculate?

Retention Ratio (Definition, Formula) | How to Calculate?

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Calculating retention factors for TLC

Calculating retention factors for TLC

Khan AcademyAngela Guerrero

Two components in an HPLC separation have retention times that differ by 15 s. The first peak elutes in 9.0 min and the peak widths are approximately equal. The dead time tM was 65 s. Use a spreadsheet to find the minimal number of theoretical plates needed to achieve the following resolution R, values: 0.50,0.75, 0.90,1.0,1.10,1.25,1.50,1.75,2.0,2.5 . How would the results change if peak 2 were twice as broad as peak 1 ? | Numerade

Two components in an HPLC separation have retention times th…

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