A solute with a retention time of 407s has a width at the base of 13.0s on a column 12.2m long. Find the number of plates and plate heigh.
The half width of the same peak is 7.6s. Find the plate height
A solute with a retention time of 407s has a width at the base of 13.0s...
A solute with a retention time of 4 mins 25 second has a base width of 12 seconds. The column is 30.0m long. How many theoretical plates does the column have? What is length in mm of one theoretical plate?
consider the peaks for trans-chlordane and for cis-chlordane where its retention time is 458.5 seconds and 475.0 seconds respectively. The elution time for unretained solute is 25 seconds. The width base for t-chlordane is 4 seconds and c-chlordane is 4.5 seconds. The open tubular column is 12.5m in length and 0.32 in diameter. Find the adjusted retention time, retention factor, number of theoretical plates and plate height for t-chlordane and c-chlordane peaks. in addition calculate the selectivity factor and resolution...
A student researcher performed a chromatographic separation of caffeine and aspartame. The retention time for caffeine, is, was found to be 218.0 s with a baseline peak width, wc, of 14.4 s. The retention time for aspartame, 1., was 250.5 s with a baseline peak width, w of 21.1 s. The retention time for the unretained solvent methanol was 40.4 s. Calculate the average plate height, H, in micrometers for this separation, given that it was performed on a 27.7...
The total retention time of an analyte on a GC column was 5 min. The column efficiency according to this peak was 22,500 total theoretical plates. Find the width of the peak at the base.
A student researcher performed a chromatographic separation of caffeine and aspartame. The retention time for caffeine, tc,was found to be 207.6 s with a baseline peak width, wc, of 16.2 s. The retention time for aspartame, ta, was 253.7 s with a baseline peak width, wa, of 18.7 s. The retention time for the unretained solvent methanol was 40.7 s. Calculate the average plate height, H, in micrometers for this separation, given that it was performed on a 27.3 cmlong...
Two compounds C and D are separated on a column 34 cm long . Given the chromatographic data below calculate The column resolution? , the number of theoretical plates ?the height of theoretical plate and what length of column would be required to give a resolution of 1.5? Compound C retention time 18.3 width at base of peak(min) = 2.18 Compound D retention time 17.7, width at base 1.23
A GC column is operated under the following conditions: Column: 1.10 m x 2 mm packed with Chromosorb P and Carbowax 20M as stationary phase. The following retention times were obtained: air: 18.0 sec; methylacetate: 2.98 min; methyl propionate: 4.56 min. Peak width at half height: methylacetate: 7.7 sec; methyl propionate: 12.4 sec. Calculate: a) the corrected retention time for each solute. b) the capacity factor k' for each solute. c) the selectivity factor α for the pair of solutes....
GIve me the answer in a correct one significant figure A chromatogram gives an ideal Gaussian peak with a retention time of 8.20 min and a peak width at half height of 0.16 min. If the column is 10.2 cm long then what is the plate height in mm (round your answer to one significant figure and don't include units in your answer)?
need help with number 2 HW #3 for Chem 318 Due: April 29, 2019 1. Solute A has a K 2.5 for an extraction between water (phase 1) and chloroform (phase 2). If 100 mL of a 0.01 fraction will be extracted? For the same solute and, what fraction will be extracted if 5 extractions wi 80 mL chloroform each are used (instead of one 400 ml extraction)? M solution containing solute A in water is extracted one time with...
The table contains data for a liquid chromatography separation of four compounds, A, B, C, and D, on a 40.0 cm column Retention Compound time (min) Width at the base (min) A 5.17 0.436 B 1.02 13.0 15.0 C 1.10 23.4 1.91 Calculate the number of theoretical plates, N, for each peak. NA NB Nc ND = What is the average number of theoretical plates, Navg, for Navg the column? What is the plate height, H, for the column? Н-...