A Review on Determining Purity of Gold Using Sensor

Abstract

Gold determination is a very challenging task in gold industries especially using non-destructive method. Some of the common method to determine the purity of gold will destroy the gold bar, for example, fire assay and scratch method. Besides, these types of methods need professional to carry out because it is complex and require some used of chemical. In this study, some of the non- destructive methods to identify the different golds purity were research before implement in COMSOL Multiphysics software to simulate and validate the data from gold industries. The research on this method by other researchers will be discussed in this report.