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GC Retention Order

Separation Science

Separation Science

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 in class by students working in groups, but can be modified for use as out-of-class exercises. Learning objectives, an instructor’s manual, and out-of-class problems…

GC Elution 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…

Environmental Analysis – Lake Nakuru Flamingos: Pesticides

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 the US due to their adverse effects on bird populations, especially bald eagles, they are still used for mosquito control in tropical regions of…

GC-MS: Performance Enhancing Drugs

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…