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The Info List - S. P. L. Sørensen


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(i)

SøREN PEDER LAURITZ SøRENSEN (9 January 1868 – 12 February 1939) was a Danish chemist , famous for the introduction of the concept of pH , a scale for measuring acidity and alkalinity . He was born in Havrebjerg , Denmark
Denmark
.

From 1901 to 1938 he was head of the prestigious Carlsberg Laboratory , Copenhagen
Copenhagen
. While working at the Carlsberg Laboratory
Carlsberg Laboratory
he studied the effect of ion concentration on proteins, and because the concentration of hydrogen ions was particularly important, he introduced the pH -scale as a simple way of expressing it in 1909. The article in which he introduced the scale (using the notation pH ), described two new methods for measuring acidity. The first method was based on electrodes, while the second involved comparing the colors of samples and a preselected set of indicators.

REFERENCES

* ^ "Sørensen, Søren Peter Lauritz (1868-1939)". 100 Distinguished European Chemists. European Association for Chemical and Molecular Sciences. Retrieved 2011-10-14. * ^ "Søren Sørenson". Chemical Heritage Foundation. Retrieved 2016-11-29. * ^ Alberty, Robert; Silbey, Robert (1996). Physical Chemistry (second ed.). John Wiley & Sons, Inc. p. 244. ISBN 0-471-10428-0 . * ^ Sørensen, S. P. L. (1909). "Enzymstudien. II: Mitteilung. Über die Messung und die Bedeutung der Wasserstoffionenkoncentration bei enzymatischen Prozessen". Biochemische Zeitschrift (in German). 21: 131–304. * ^ Nielsen, Anita Kildebæk (2001). "S.P.L. Sørensen" (in Danish). Biokemisk forening. Retrieved 2007-01-09.

AUTHORITY CONTROL

* WorldCat Identities * VIAF : 38418568 * LCCN : n86864471 * GND : 127678484 * SUDOC : 160774993 * IATH

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