This Article comes from a series of 2 h instrumental analysis laboratory experiments
developed in response to social distancing requirements established because of the …

The unforeseen COVID-19 pandemic forced educational institutions to shift to a remote or
distance-learning mode. As a result, classes were offered online, and this shift in teaching …

During the COVID-19 pandemic, an at-home laboratory program was created and
implemented for a section of the general chemistry course at the University of Southern …

Linear retention indices are commonly used to identify compounds in programmed-
temperature gas chromatography (GC), but they are unreliable unless the original …

Programmed-temperature gas chromatographic (GC) retention information is difficult to
share because it depends on so many experimental factors that vary among laboratories …

Retention and selectivity in gas chromatography (GC) occur because of the thermodynamics
of the phase transition from the vapor phase following sample injection to the solution phase …

In this communication we compared the challenges, teaching strategies, laboratory
methods, and discussion methods used by two different instructors teaching a three …

Compound identification continues to be a major challenge. Gas chromatography–mass
spectrometry (GC–MS) is a primary tool used for this purpose, but the GC retention …

Gas chromatography/mass spectrometry (GC/MS) is a primary tool used to identify
compounds in complex samples. Both mass spectra and GC retention times are matched to …

Experiments written for students who were quarantined during the COVID-19 pandemic are
described. These were developed to provide hands-on lab experiences that students would …