It was studied that the graphite-based lead dioxide anode which had been electrochemically activated was used to electrogenerate trivalent cobalt ion by means of coulometry at ambient temperature.
以库仑分析法为研究手段，考察了在室温下经电化学活化的石墨基二氧化铅阳极电生三价钴的条件及其应用。
2
Hexavalent chrome is reduced to trivalent chrome by morpholine under high temperature conditions. Then morpholine content is calculated by detecting the absorbance of trivalent chromic ion.