Author:Archer, M; McCrindle, RI; Rohwer, ERDate:Dec 2003Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to measure the concentrations of cobalt, tantalum, titanium, vanadium and chromium in solutions of tungsten carbide. The main advantage of the method described here ...Read more
Author:Archer, M; De Vos, BJ; Visser, MSDate:Apr 2007Internationally, certified ethanol reference materials are required to calibrate breathalysers and blood-alcohol measurement instruments. The CSIR National Metrology Laboratory of South Africa provides certified aqueous ethanol solutions with ...Read more