Novel calibration approach for particle size analysis of microplastics by laser ablation single particle-ICP-MS.

ABSTRACT: The need to analyze and characterize microplastics (MPs) is ever-increasing to monitor and understand their environmental impact. In this work, a developed calibration approach that utilizes an in-house-created polystyrene (PS) thin film for the sizing of MPs is presented, circumventing the need for certified particulate standard material. LA was used for sampling and transporting intact MPs of different sizes and polymer types to the ICP-MS. For the calibration, defined amounts of carbon were introduced into the ICP-MS by quantitatively ablating a polymer thin film with different laser spot sizes. With this approach, a LOD of 4.85 pg carbon was obtained, which translates to a size of 2.12 μm for spheric PS particles. The calibration using PS thin film was successfully applied to sampled P

SUBMITTER: Brunnbauer L 

PROVIDER: S-EPMC11783204 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature