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Optimization of tablet processing as a reference material for microplastic detection methods

Analytical and Bioanalytical Chemistry 2025 Score: 38 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Andy M. Booth, Yosri Wiesner, Mara Putzu, Korinna Altmann Korinna Altmann Korinna Altmann Yosri Wiesner, Korinna Altmann Yosri Wiesner, Yosri Wiesner, Yosri Wiesner, Korinna Altmann Carine Chivas‐Joly, Yosri Wiesner, Carine Chivas‐Joly, Korinna Altmann Andrea Mario Giovannozzi, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Vasile‐Dan Hodoroaba, Mara Putzu, Mara Putzu, Mara Putzu, Mara Putzu, Mara Putzu, Andrea Mario Giovannozzi, Andrea Mario Giovannozzi, Mara Putzu, Andrea Mario Giovannozzi, Andrea Mario Giovannozzi, Andrea Mario Giovannozzi, Andy M. Booth, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Korinna Altmann Korinna Altmann Korinna Altmann Andy M. Booth, Andy M. Booth, Vasile‐Dan Hodoroaba, Vasile‐Dan Hodoroaba, Andy M. Booth, Carine Chivas‐Joly, Carine Chivas‐Joly, Yosri Wiesner, Yosri Wiesner, Korinna Altmann Korinna Altmann Korinna Altmann Yosri Wiesner, Korinna Altmann Korinna Altmann Korinna Altmann Carine Chivas‐Joly, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Korinna Altmann Andy M. Booth, Andrea Mario Giovannozzi, Korinna Altmann Korinna Altmann Korinna Altmann Korinna Altmann Korinna Altmann Korinna Altmann Korinna Altmann Korinna Altmann Christiane Weimann, Vasile‐Dan Hodoroaba, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Nizar Benismail, Nizar Benismail, Andrea Mario Rossi, Andrea Mario Giovannozzi, Andrea Mario Giovannozzi, Christiane Weimann, Nizar Benismail, Nizar Benismail, Andy M. Booth, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Soledad Muniategui‐Lorenzo, Korinna Altmann Ivana Fenoglio, Andrea Mario Giovannozzi, Korinna Altmann Andrea Mario Giovannozzi, Andrea Mario Giovannozzi, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Korinna Altmann Andy M. Booth, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Andrea Mario Giovannozzi, Yosri Wiesner, Korinna Altmann Yosri Wiesner, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andrea Mario Giovannozzi, Andy M. Booth, Andy M. Booth, Andy M. Booth, Korinna Altmann Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Korinna Altmann Andy M. Booth, Andy M. Booth, Mara Putzu, Korinna Altmann Vasile‐Dan Hodoroaba, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Korinna Altmann Andy M. Booth, Christiane Weimann, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Ivana Fenoglio, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Andy M. Booth, Christiane Weimann, Soledad Muniategui‐Lorenzo, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Korinna Altmann Soledad Muniategui‐Lorenzo, Korinna Altmann Andy M. Booth, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Verónica Fernández-Gonzáles, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Carine Chivas‐Joly, Carine Chivas‐Joly, Yosri Wiesner, Soledad Muniategui‐Lorenzo, Korinna Altmann Verónica Fernández-Gonzáles, Yosri Wiesner, Yosri Wiesner, Nizar Benismail, Nizar Benismail, Nizar Benismail, Nizar Benismail, Andrea Mario Rossi, Andy M. Booth, Andrea Mario Giovannozzi, Andy M. Booth, Andy M. Booth, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Soledad Muniategui‐Lorenzo, Andy M. Booth, Andrea Mario Giovannozzi, Korinna Altmann Andy M. Booth, Andy M. Booth, Andy M. Booth, Amaia Igartua, Amaia Igartua, Andy M. Booth, Andy M. Booth, Andy M. Booth, Andy M. Booth, Korinna Altmann Soledad Muniategui‐Lorenzo, Andrea Mario Giovannozzi, Andy M. Booth, Andrea Mario Giovannozzi, Nizar Benismail, Ivana Fenoglio, Korinna Altmann Christiane Weimann, Christiane Weimann, Christiane Weimann, Andy M. Booth, Nizar Benismail, Nizar Benismail, Nizar Benismail, Nizar Benismail, Nizar Benismail, Soledad Muniategui‐Lorenzo, Andrea Mario Rossi, Ivana Fenoglio, Christiane Weimann, Andy M. Booth, Nizar Benismail, Nizar Benismail, Soledad Muniategui‐Lorenzo, Korinna Altmann Andy M. Booth, Andy M. Booth, Soledad Muniategui‐Lorenzo, Korinna Altmann Andy M. Booth, Korinna Altmann Laureen Coïc, Laureen Coïc, Carine Chivas‐Joly, Ivana Fenoglio, Ivana Fenoglio, Korinna Altmann Carine Chivas‐Joly, Ivana Fenoglio, Ivana Fenoglio, Ivana Fenoglio, Ivana Fenoglio, Ivana Fenoglio, Yosri Wiesner, Ivana Fenoglio, Andrea Mario Giovannozzi, Soledad Muniategui‐Lorenzo, Andrea Mario Rossi, Andrea Mario Rossi, Soledad Muniategui‐Lorenzo, Andrea Mario Giovannozzi, Soledad Muniategui‐Lorenzo, Korinna Altmann Andrea Mario Giovannozzi, Ivana Fenoglio, Ivana Fenoglio, Ivana Fenoglio, Andy M. Booth, Amaia Igartua, Andy M. Booth, Soledad Muniategui‐Lorenzo, Soledad Muniategui‐Lorenzo, Andrea Mario Giovannozzi, Mara Putzu, Soledad Muniategui‐Lorenzo, Korinna Altmann

Summary

Researchers developed and optimized water-soluble polypropylene microplastic tablets as standardized reference materials for testing detection methods, achieving consistent particle mass and verifying them across multiple analytical techniques including Raman spectroscopy, thermal analysis, and mass spectrometry to support harmonized monitoring standards.

Reference materials (RMs) are essential and highly demanded tools for the development and validation of methods for microplastic (MP) quantification in complex matrices, to ensure comparable and harmonized approaches aligned with EU commission criteria for monitoring MPs (e.g., Drinking Water Directive and Urban Wastewater Treatment Directive). This study investigates different approaches for optimizing the production of polypropylene (PP) RMs in the form of water-soluble tablets, which were carefully evaluated for their homogeneity and stability according to ISO Guide 30, ISO 33401, and ISO 33405. PP particles (1-100 μm) were produced by cryomilling and embedded in a lactose/PEG matrix, then pressed into tablets (18 µg theoretical PP mass). The production process was optimized by varying (i) the size distribution of the matrix components and (ii) the mixer instrument. The materials obtained were characterized by thermogravimetric analysis to assess the homogeneity distribution of MPs with respect to PP mass in the individual tablets and their stability over a 4-month period. The most promising approach, with a homogenous mass of 19 μg (standard deviation of 4 μg), relative standard deviation of 19%, was further investigated for homogeneity by comparison with thermo-analytical mass determination methods, such as TED-GC/MS (thermal extraction desorption-gas chromatography/mass spectrometry) and Py-GC/MS (pyrolysis-gas chromatography-mass spectrometry), and for number-based characterization using micro-Raman spectroscopy. Material characterization was also examined using laser diffraction, scanning electron microscopy, and ATR-FTIR. Based on the results, the optimized processing protocol yields a PP RM suitable for quality control and method performance studies supporting standardization.

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