@article{5231, author = {William Kelly and Kenneth Pratt and William Guthrie and Keith Martin}, title = {Origin and Early History of Die Methode des Eichzusatzes or The Method of Standard Addition with Primary Emphasis on Its Origin, Early Design, Dissemination, and Usage of Terms}, year = {2011}, number = {400}, month = {2011-06-01}, publisher = {Analytical Chemistry}, language = {en}, }