Tag Archives: selectivity coefficient

Separating a Weakly Acidic Analyte from a Weakly Basic Interferent

Imagine¬† you have an aqueous sample containing a weak acid analyte, HA, and a weak base interferent, HI.¬† The following information about HA, HI, the method of analysis, and the sample are available to you: Ka,HA = 1.00 x 10-3 … Continue reading

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Analysis of Pb in Biological and Environmental Samples

A paper by Yan, et. al. [Yan, X.-P.; Sperling, M.; Welz, B. Anal. Chem. 1999, 71, 4216-4222] describes a newly developed analytical method for the analysis of biological and environmental samples containing Pb2+ in the presence of a variety of … Continue reading

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