Students use computer simulations to explore the Nyquist frequency.
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Students explore basic statistical concepts in this activity.
Toxic trace metals are possible culprits for the ongoing deaths of large numbers of lesser flamingos at Lake Nakuru, Kenya. In this section we explore the possible role of heavy metals in these deaths and examine instrumental methods utilized to evaluate levels of copper, zinc, lead and chromium present in Lake Nakuru sediment and suspended solid samples. These methods include anodic stripping voltammetry (ASV), atomic spectroscopy, and x-ray fluorescence spectroscopy (XRF). Data sets are provided for each technique so that current levels can be calculated and compared to those contained in a report published in 1998.
After completing this activity, students will be able to: Identify the individual components of the MS and their respective functions. Describe how ions of different m/z are distinguished in a MS. Compare […]
Students will learn to:
Differentiate between signals and noise in electronic measurements
Describe the behavior of signals and noise in repeated measurements
Describe signal-to-noise ratio and its impact on the ability to detect signals
A variety of common standardization methods are developed in this activity.
Students perform statistical analyses of masses of a large number of coins to explore important concepts in statistics.
Introduction This module introduces students to the topic of sample preparation using a variety of real-world examples from pharmaceutical analysis to environmental analysis. Liquid-liquid extraction, solid phase extraction, QuEChERS, derivatization in chromatography […]
Students predict the mass spectra for a variety of trihalomethanes. Peter Palmer, San Francisco State University (palmer@sfsu.edu)
Students use computer simulations to explore aspects of signal averaging.
Students explore calculations of the concentration on an unknown under a variety of different conditions and standardization methods.
Students use a dataset for pennies to explore basic statistical concepts.