โ Scribed by W.J. Wilson
No coin nor oath required. For personal study only.
The dcvclopment of copper-containing arsenical wood preservatives has created the riced for a rapid routine method for determining this metal. These preservative mixtures contain in addition to copper: zinc,. arsenic and chromate. The standard iodometric method cannot be easily applied in this case owing to the presence of the sexivalcnt chromium. The clcctrolytic method used for the analysts of preservatives of the copper chromate type cannot bc used without special conditions owing to the prcscncc of arsenic and zinc. It was therefore dccidecl to attempt to apply the silver rcdl_lCtol-method Of f~iIZNI3AWM AND EDbIONld.
๐ SIMILAR VOLUMES
The concentration fields in small free convective copper and silver refining cells and a nonconvective horizontal copper refining cell, were measured at different current densities with probe beam deflection (PBD). The electrolytes were aqueous solutions of CuSO, and AgNO,, respectively. The results
## Abstract New, renewable copper (Hg(Cu)FE) and silver (Hg(Ag)FE) based amalgam film electrodes applied for the determination of elemental sulfur using differential pulse cathodic stripping voltammetry are presented. With surface areas adjustable from 1 to 12โ mm^2^, both electrodes are characteriz