|Articles|September 21, 2015

Performance of a “Souped Up” ICP

Strategic modifications were made to the sample introduction system of an ICP optical spectrometer in order to improve precision, reduce drift and carryover, lower detection limits and speed analysis.

 


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John Philip Walters (1)
John Philip Walters, Ph.D. (1938-2026), was an analytical chemist who spent 17 years researching the physics of spark-discharge emission spectroscopy at the University of Wisconsin-Madison before moving to St. Olaf College in 1982, where he became best known for pioneering a role-playing undergraduate laboratory model that had students take on professional roles to mirror real analytical-chemistry work. His 1991 three-part series on the approach in Analytical Chemistry earned him the ACS Division of Analytical Chemistry's J. Calvin Giddings Award in 1993, and he continued extending his understand-the-system teaching philosophy into computer-controlled instrumentation well into his later career.