Short Course Listings
 
Short Course

Course Information
Course Title: Measurement and Interpretation of pH in Aqueous and NonAqueous Solutions and Other Stuff
Categories: 1 - Liquid Chromatography
2 - Capillary Electrophoresis
3 - Chiral Separations
4 - Electrochemistry
5 - Sample Preparation
6 - Supercritical Fluid
Instructor(s): William Tindall Course Number: 30
Affiliation: Analytical Science Solutions
Course Date: 03/19/2013 - Tuesday Course Length: 1/2 Day Course
Start Time: 08:30 AM End Time: 12:30 PM
Fee: $260 ($360 after 2/18/13) Textbook Fee:

Course Description
The pH of aqueous solutions, mobile phases, reaction mixtures, solvents, concrete, arm pits and chicken tenders can be readily measured. But, making and interpreting these measurements in a meaningful way may require a deeper understanding of the measurement process and underlying theory than is normally provided in analytical classes. pH is a measurement more complicated than it seems, as evidenced by the fact there weren’t universally agreed upon pH standards until 2002. The literature is full of examples where pH measurements were improperly made, or improperly interpreted, which led to failed experiments and flawed conclusions. The class objective is to provide a fundamental understanding of the measurement process and theory sufficient to make and use pH measurements in a great variety of solutions and environments.

Target Audience
The elementary concepts of pH typically taught are inadequate to properly make and interpret pH measurements in many practical situations. Anyone making pH measurements or controlling pH in an environment other than a dilute aqueous solution will find the greater understanding of pH gained from this class useful.

Course Outline
The class begins with a fundamental review of aqueous pH concepts and the historical development of pH standards. A discussion of why it took 50 years for NIST to develop pH standards and 100 years for the world to agree on standards will reveal limitations of the pH measurement process that are important to measurement and interpretation in water, and even more so in organic solvents and other environments. The details of the glass(pH) electrode and its response are explored to gain a better understanding of how to use this device in diverse environments, how to interpret the results and its limitations. Many examples from the literature as well as my experience will be provided to illustrate proper, and improper, pH measurement and interpretation.

Course Instructor's Biography
William Tindall currently consults and teaches for Analytical Science Solutions, LLC in the areas of analytical and polymer chemistry, corrosion and acid/base chemistry in aqueous and nonaqueous solutions. Prior employment was with Kodak and Eastman Chemical Company where William did analytical research in the areas of atomic spectroscopy, mass spectrometry, chromatography, and polymer chemistry. William has 30 publications and patents in these fields. William received his BS in chemistry from Clarkson College, Potsdam, NY and his PhD in Analytical Chemistry from the University of Minnesota.