A series of collaborative learning activities and accompanying text that develop the field of separation science, with a particular emphasis on chromatographic separations, is provided. These activities are intended to be done […]
b. GC Retention Order
Students will learn to:
Predict and explain the elution order of analytes.
Explain the effects of temperature programs and flow rate on resolution at the macroscopic and molecular level.
Explain the effects of flow rate.
Select separation conditions for a given set of molecules.
Could toxic pesticides like DDT be responsible for the deaths of large numbers of lesser flamingos at Lake Nakuru, Kenya? While many organochlorine pesticides including DDT have been banned for decades in […]
Students will learn to:
Differentiate between GC stationary phases and their selectivities.
Identify the factors that influence retention of analytes.
Recognize the relationship between chromatographic peak shape and various chromatographic influences.
Identify the advantages and disadvantages of the derivatization of analytes for GC volatility.
Students explore the effect of temperature on gas chromatographic separations.
Students explore aspects of gas chromatography including various injection and detection methods. There is an associated text that explains the answers to the questions on the worksheet.