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DEVELOPMENT OF AN AUTOMATED SAMPLE PREPARATION STATION FOR MICROSAMPLE X-RAY ANALYSIS (MXA)

In Microsample X-ray Analysis (MXA), a droplet of sample-typically 50 microliters-is evaporated onto a thin film sample support substrate and the resulting residue is analyzed for trace elements. In this work we present the development of an automated robotic sample deposition system designed with the goals of improving the uncertainty in residue formation while reducing the drying time to improve laboratory response time. Before implementation on the automated robot, the drying parameters of droplet size, drying method (hotplate or dry flowing nitrogen), drying temperature, and time were explored.