Validation of a mercury analyser: Lumex RA915+/RP91C (solid configuration)

摘要

The Lumex is a portable mercury analyser on air, soils and water. This study presents the methodology used for the analytical validation of this device on soils and sediments. On ten reference materials, the following characteristics of the method have been assessed: linearity, quantification limit, repeatability, reproductibility, trueness. They were found very close to the characteristics of our reference method (Aqua Regia -CVAAS) and even better for quantification limit. On real samples analyses with the two methods were quite comparable with a slight underestimation for some samples with Lumex.