Preparation and application of selenite ion selective electrode.
A new selenite ion selective electrode using 4,6-dibromopiaselenole as active material, PVC as membrane matrix and dibutyl phthalate as plasticizer has been developed. An analytically useful potential change occurs from about 10(-6)-10(-1)M Se(IV), and the slope of the linear portion is -23.6 mV/10-fold change in Se(IV) concentration at a temperature of 21 degrees . The electrode shows fairly good selectivity for selenite ion over other anions and has been used for the successful determination of total selenium in human hair.
Cai
Q
Q
Department of Chemistry, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China.
Ji
Y
Y
Shi
W
W
Li
Y
Y