METHOD FOR QUANTIFYING POLYMER SPECIES IN A SPECIMEN CONTAINING POLYMER PARTICLES

The invention relates to a method for quantifying polymer species in a specimen (10) containing polymer particles, in which method a specimen (10) containing polymer particles is provided, the particles of which are of a size that corresponds to a prescribed particle size or a prescribed particle size range, and an electroseparation of the specimen (10) containing polymer particles is carried out with prescribed separation parameters, wherein the polymer particles of the specimen (10) containing polymer particles are electrically charged and electrostatically separated into collecting containers (6, 7, 8, 15, 16) arranged alongside one another, in each of the prescribed collecting containers (6, 7, 8, 15, 16) a specific enthalpy and/or a specific change in heat capacity of the polymer particles of the specimen (10) containing polymer particles that have been enriched in the respective enrichment container is determined, and the proportions by mass of the polymer species contained in the specimen (10) containing polymer particles is determined from the determined specific enthalpies and/or the determined specific changes in heat capacity and from polymer-specific enrichment factors that have been determined experimentally or provided in a database.