Determination of Platinum in National Iranian Copper Industries Copper Matte sample By Solid Phase Extraction

Fire Assay Test Method [1] is used for Platinum Measurement. It has major disadvantages such as high energy consumption, the environmental pollutants, human risks and too much time of Analysis. Today, all these problems are fundamental and important crises. Therefore, Utilization a test method that hasn t these problems is necessary. By Solid phase extraction technique, concentration and separation of small amounts of platinum in Copper Matte samples was presented. In this technique Rubeanic Acid [2] as a Ligand and alumina as an adsorbent before determination by flame atomic absorption were used. Critical parameters of this technique such as pH[3], flow rate of sample and elution[4], adsorbent weight and type, concentration and volume of Elution, step by step was achieved[5]. Validation process with three method was performed, analysis of standard samples (CRM); Analysis Results Compare with AHK reference laboratory in England and the third method using of spiking technique on samples with Determined value (RM). Statistical evaluations of Validation Process by using of Minitab software were performed. Limit of detection (LOD) based on three times the standard deviation of Blank with five times measurements, 2.20 µg/Lwas calculated. The linear range of calibration curve in the range of 1 to 100 µg/L with the correlation coefficient 0.9950 was obtained.