title: Potentiometric determination of trace silver based on the use of a carbon paste electrode.
abstract: A carbon paste electrode used as a sensor for silver has been developed and electrode response characteristics have been investigated. The electrode exhibits linear response to the logarithm of the concentration of silver from 5 x 10(-7)M to 1 x 10(-2)M, with a response slope of 63 +/- 2 mV. The detection limit according to IUPAC recommendations is 1 x 10(-7)M. This electrode has been used to determine trace silver in fixing solutions and waste electroplate solutions with good results.
authors.affiliation: Chemistry Department, Wuhan University, Wuhan, People's Republic of China.
authors.forename: J
authors.initials: J
authors.lastname: Pei
authors.forename: Q
authors.initials: Q
authors.lastname: Yin
authors.forename: J
authors.initials: J
authors.lastname: Zhong