Amperometric titration with the convection electrode I

Amperometric Titrations

“…A shielded dropping mercury electrode for titrating under continuous stirring or aeration has been described by Campbell and Reilley (34). A vibrating platinum electrode (272) or a platinum convection electrode fixed in the cell near a rapidly rotating disk (178) is reported to be more sensitive or accurate than a rotating platinum electrode used under similar conditions. The uses of a graphite electrode in amperometric titration and other microanalyses have been described (63,64)•…”

“…Biamperometric indication at two silver electrodes was used. Titrations involving silver and chloride or ferrocyanide ions have been carried out at a convection electrode (178). Silver in Collargol and Protargol has been titrated in dilute HNO3 with KI at an R.P.E.…”

Resistance to Insecticides in Almond Moth, Ephestia cautella WALKER

“…In 1960, failures of ethyl-parathion in controlling the rice stem borer, Chilo suppressalis WALKER, were reported in some regions of Kagawa and Ehime prefectures. Since then, both field and laboratory studies have been carried out, showing that the method of application and the amount of the insecticide used were not responsible for the failure, but rather the borer might have developed resistance (Ozaki, 1962). Failures of control of several other species of Lepidoptera in fields have also been peported (HARVEY & SWEN-SON, 1954;MCEWEN & HARVEY, 1956;MADSEN & FALCON, 1960).…”