Utilizing our world-leading microparticle technology, the Thermo Scientific Qunatitative Microsphere System (QMS) product line is the largest menu of homogenous turbidimetric immunoassays currently available for Therapeutic Drug Management (TDM). We offer assays for drugs used in the fields of epilepsy and pain management, infection, organ transplantation and cardiology. All QMS immunoassays can be used on general chemistry analyzers.