B. There was big news all over the internet that the Ponkan oranges that were imported from one of our neighboring counties are heavily contaminated with pesticides. Your lab was asked to analyze these samples using a gas chromatographic procedure. 9. Substances Chlorobenzilate and BFB have retention times of 17.1 and 17.60 min, respectively, on a 300-cm column. An unretained species pass through the column in 1.30 min. The peak widths (at base) for Chlorobenzilate and BFB are 0.11 and 0.21 min, respectively. Calculate (a) Capacity Factor for compound both compounds, (b) Selectivity Factor (c) Resolution of the column and d) Average Number of Theoretical Plates

B. There was big news all over the internet that the Ponkan oranges that were imported from one of our neighboring counties are heavily contaminated with pesticides. Your lab was asked to analyze these samples using a gas chromatographic procedure. 9. Substances Chlorobenzilate and BFB have retention times of 17.1 and 17.60 min, respectively, on a 300-cm column. An unretained species pass through the column in 1.30 min. The peak widths (at base) for Chlorobenzilate and BFB are 0.11 and 0.21 min, respectively. Calculate (a) Capacity Factor for compound both compounds, (b) Selectivity Factor (c) Resolution of the column and d) Average Number of Theoretical Plates

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter34: Miscellaneous Separation Methods

Section: Chapter Questions

Problem 34.1QAP

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An unretained solute is eluted from a GC column in 1.80 min. Decane (C10H22) is eluted in 15.63 min and undecan (C11H24) is eluted in 17.22 min. What is the retention time (report to 2 decimal places, in minutes) of a compound whose retention index is 1050?
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A new dye (DYE C) was developed and was analyzed against other dyes using paper chromatography. A solution 1:1 ethyl acetate: hexane was used as the eluent. The resulting chromatogram is shown at the photo. Determine the retention factor (Rf) values of each spot on dye C and what are the other dye/s present in dye C.
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