The Fusion Monitor™ quality control compound consists of homogeneous and stable pre-fused glassy beads that are made of lithium borate flux, of a non-wetting agent and of a matrix (sample). It provides a quick, easy and proactive quality assessment and monitoring of the fusion process. The Fusion Monitor quality control product is very useful in laboratories since it reduces downtime by quickly identifying the source of a problem and by detecting upcoming biases. Claisse also provides Certified Reference Materials (CRMs) and Reference Materials (RMs). Customized synthetic mixtures of pure oxides can be created so the customers have the proper elements and concentrations to obtain the best calibration curve when CRMs are not available.