Volumetric Determination of Orcine

Volumetric determination of columbium.

The quantitative determination of columbium based on reduction by amalgamated zin c and reox idation with potassium permanganate has, in general, produced results that lack both accuracy and precision. A study of t he various factors involved indicates that essential conditions requ ire adequate duration of reduction in t he presence of an excess of zinc and a proper concentration of both acid ...

EDWARDS : Volumetric Determination Of Carbon

Volumetric determination of calcium in blood serum.

Volumetric and spectrophotometric determination of oxcarbazepine in tablets.

Two cerimetric procedures are described for the assay of oxcarbazepine (OXC) in bulk drug and in tablets. Titrimetry (method A) is based on the reaction of OXC by a measured excess cerium(IV) sulphate in sulphuric acid medium and the determination of the unreacted oxidant by titration with iron(II) solution using ferroin as indicator. Spectrophotometry (method B) is based on oxidation of OXC by...

A Volumetric Method for Determination of Potassium in Biological Materials

During the past 3 years we have carried out analyses of tissues for potassium in this laboratory using the separation by chloroplatinic acid. For 1 year potassium has been estimated by a Volhard titration of the chlorine in KzPtC16 separated by the usual procedure. Because the method seems more accurate and convenient than previous titrimetric methods, a description is warranted. SolulionsSolut...