This site offers an introductory course (as a MOOC) on the estimation of measurement uncertainty specifically related to chemical analysis (analytical chemistry). The course gives the main concepts and mathematical apparatus of measurement uncertainty estimation and introduces two principal approaches to measurement uncertainty estimation – the ISO GUM modeling approach (aa “bottom-up” approach) and the single-lab…
Lasers are preferred light sources for high resolution or time-resolved optical spectroscopy. This module introduces the workings of lasers and gives examples of common designs.The website is available here .
Basic concepts of signals, noise, and extraction of data from noisy signals are presented as an e-learning module. Excel spreadsheets allow students to vary noise parameters. Basic electronics ideas relating to RC circuits support introductory information on filtersThe website is available here .
This learning module presents the fundamentals of X-ray Diffraction for characterizing molecular structure in a form useful both as lecture notes and for self-study.
The website is available here .
This site provides an introduction to principal component analysis, beginning with a glossary of important terms before taking the reader through the process of completing a principal component analysis. One limitation to the site is its reliance on Minitab and SPSS for calculations. Users without access to these programs can reproduce the calculations using other software…
This site provides a tutorial on electromagnetic waves using animated graphics. The tutorial gives the student the ability to visualize circularly polarized waves, the superposition of various types of polarized waves, and the change that results when the EM waves interact with matter.The website is available here .
Although this website by the U.S. Geological Survey (USGS) does not contain analytical data or methods per se, it is one that contains a complete compendium of links to material on environmental topics under the pervue of USGS. As such, it can serve as a resource and background material for students, faculty or practitioners interested…
Means, standard deviation, and deciding if two results are different at some level of statistical significance is the basis for analytical decision making. This module teaches students how to use t-tests, Q-tests, and to tell when differences are statistically real.
The website is available here .
This site offers Java-based applets as organized in 4 categories: analytical and general chemistry, instrumental chemical analysis, instrumentation/signal processing, data analysis/chemometrics. Each applet includes a short introduction followed by a user controlled input of experimental conditions, such as seen for diffusion in electrochemistry.The website is available here .
This site is one of many on \\\"nanoHUB.org\\\" which highlights availability of on-line simulations. This particular one provides a video of a research seminar on the topic of micromechanical biosensors focusing on aptamer-based receptor molecules. The quality of the graphics in the video is not high - mainly, the smallness of the visuals makes it difficult…