Microplastics analysis according to the method defined by Delegated Decision (EU) 2024/1441 in the laboratory

The presence of microplastics in a finished product can expose manufacturers to simultaneous challenges in regulatory compliance, quality control, reformulation, and technical justification to customers or authorities. Delegated Decision (EU) 2024/1441 requires a rigorous characterization approach, based in particular on polymer type, particle size, particle count and, depending on the case, additional criteria such as solubility or biodegradability. This issue concerns many sectors: chemicals, cosmetics, materials, medical devices, detergents, paints, inks, polymers, packaging, and technical products.

The expertise is based on a step-by-step methodology: matrix assessment, selection of the preparation protocol, filtration on a suitable support, then identification and classification of the particles. This approach makes it possible to adapt the analysis to liquids, solids, powders, complex formulations or process residues. The results can be used for compliance studies, inter-batch comparison, contamination investigations or support for material substitution.

Microplastics analysis rely on complementary technical means. After sample preparation and filtration, identification and quantification can be performed by FTIR, with classification by polymer type and size for particles with suitable resolution. Depending on the need, µ-Raman makes it possible to extend the investigation to finer particles, down to the micrometre range. For elemental composition or morphological observation, SEM-EDX provides additional information on isolated particles. Also discover our Laboratoire Analyse Meb.

The laboratory works on complex issues involving particulate contamination, polymer characterization and material analysis. This experience makes it possible to propose realistic testing strategies, adapted to the constraints of your products and your level of requirements. The tailored approach is particularly relevant when the matrix is difficult, the regulatory need is changing or several techniques must be combined to secure the analytical conclusion.

The laboratory carries out microplastics analysis tailored to the matrix, the study objective and the expected level of information: screening, confirmation, non-compliance assessment, comparative study or R&D support. The analytical approach combines sample preparation, filtration, observation, chemical identification and size classification. Depending on the need, the investigations can be supplemented by surface analysis, elemental composition analysis or analysis of associated organic compounds. To learn more, also visit our dedicated page on Microplastics.

Beyond measurement, the laboratory supports manufacturers in defining the analytical need, selecting the relevant techniques, interpreting the data and delivering conclusions useful for decision-making. This support may include method development, analytical validation, regulatory support or additional characterization of particles and polymers. Depending on the issue, resources from Laboratoire analysis Met may be mobilized to support the expertise.

When the project requires a broader understanding of the material, complementary techniques can be integrated, such as Py-GC/MS for the study of polymers and characteristic fragments, or targeted analysis of volatile, semi-volatile and non-volatile organic additives. These approaches are useful in reverse engineering, formulation comparison or the search for substances associated with the particles. Depending on the issue, resources from Laboratoire analysis Gc Tea or Headspace GC-MS analysis laboratory solutions can complete the analytical setup.

The deliverables are designed for operational use of the results: understanding the nature of the particles, prioritizing risks, supporting formulation decisions, justifying a technical file or investigating a non-compliance. The laboratory operates within a framework of recognized quality and technical support for manufacturers, with the ability to develop, adapt and transfer specific analytical methods when needed.

To start a study, it is necessary to specify the matrix, the regulatory context, the objective of the analysis and the expected level of sensitivity. The laboratory can then propose a suitable strategy: feasibility test, preparation protocol, choice of techniques, analysis plan and reporting of results. Define your need, submit your samples, characterize the particles, interpret the results and secure your technical decisions: this approach makes it possible to move quickly toward an actionable response.