Pharmacy Study Material

Free pharmacy material Electrogravimetry INTRODUCTION Luckow first discovered the electrogravimetry for the determination of the copper. Then Alexander Classen first published the paper on the electrogravimetry in 1881. After that, Gibb's was the first founder of the electrogravimetry for the deposition of the metals on the mercury cathode. Electrogravimetry is a method for the separation of the metal ions by using the electrodes. The deposition takes place on the one electrode. The weight of this electrode is determined before and after deposition. This gives the amount of the metal present in the given sample solution. PRINCIPLE The main principle involved in this method is the deposition of the solid on an electrode from the analyte solution. Electrogravimeter The material is deposited by means of potential application. The electrons are transported to electrode by the following mechanisms: Diffusion Migration Convection THEORY A metal ...