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Gas Chromatography

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Separation Science

Separation Science

00. Complete Active Learning Units with Supporting Text, a. Basic chromatographic concepts, a. General Coverage of GC, a. General Coverage of HPLC, a. Ion Chromatography, b. GC Retention Order, b. HPLC Retention Order, b. Liquid-liquid extraction, b. Steric Exclusion chromatography, c. Peak broadening, d. Capillary electrophoresis, d. Fundamental resolution equation, In Class Activities, Textual Material
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

19. Simulations, 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…

Environmental Analysis – Lake Nakuru Flamingos: Pesticides

04. Standardizing Analytical Methods, 22. Contextual Modules, a. Basic Concepts in Mass Spectrometry, a. Designing a sampling plan, a. General Coverage of GC, b. GC Retention Order, Contextual Modules, e. GC Method Development
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…
Interpreting primary literature

Interpreting the Primary Literature

20. Activities that Use Primary Literature, a. Basic chromatographic concepts, b. Acid-base equilibria, d. GC-MS, e. HPLC - Literature Article Analysis, e. Mass Spec - Literature Article Analysis, e. Voltammetric Methods, f. GC - Literature Article Analysis, f. Method selection in chromatography, h. Atomic Spectroscopy, In Class Activities
Introduction These assignments are designed to be capstone activities at the end of units on figures of merit (such as sensitivity and LOD), acid-base equilibria, separations, spectroscopy, mass spectrometry, and electrochemistry. Each assignment consists of an out-of-class reading assignment drawn from the primary literature accompanied by objective questions and a set of open-ended, in-class discussion questions.…

Sample Introduction in Gas Chromatography

c. GC Instrument Components
Students will learn to: Describe the operational principle of different entry-level techniques such as split/splitless, on column, PTV, thermal desorption-pyrolysis, purge and trap Differentiate various types of GC sample introduction methods and determine their suitability for specific analytes in different matrices Interpret the impact…

GC-MS: Performance Enhancing Drugs

a. General Coverage of GC, b. GC Retention Order
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…
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