Clark, W.Mansfield (William Mansfield), 1884-1964

Clark was a biochemist who, through work on hydrogen-ion concentrations in the 1920's, helped develop and standardize the concept of pH. The common acceptance of this concept throughout the disciplines of chemistry in which the measurement and control of acidity are crucial, made a lasting impact. Later research involved studies in the oxidation-reduction potentials of organic systems. During World War II Clark served as Chairman of the Division of Chemistry and Chemical Technology, National Research Council. He was a major figure in the antimalarial drug survey and development effort undertaken by the U.S. Government. Clark taught in the Department of Physiological Chemistry, Johns Hopkins University School of Medicine, from 1927-1952. He was highly respected as a teacher and administrator. Clark moved his laboratory to the Homewoood Campus of Johns Hopkins where he continued to teach and conduct research. Clark published many articles and several books, and was the recipient of many honors and awards. He died in Baltimore on 19 January 1964.

From the description of Papers, 1903-1964. (American Philosophical Society Library). WorldCat record id: 122615970

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