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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Gut & Microbiome Marine & Wildlife Policy & Risk Sign in to save

Quantification of Microplastics by Pyrolysis Coupled with Gas Chromatography and Mass Spectrometry in Sediments: Challenges and Implications

Microplastics 2022 81 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
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Bruno Tassin Bruno Tassin Johnny Gaspéri, Rachid Dris, Johnny Gaspéri, Rachid Dris, Rachid Dris, Johnny Gaspéri, Rachid Dris, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Sylvie Derenne, Rachid Dris, Rachid Dris, Rachid Dris, Rachid Dris, Rachid Dris, Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Sylvie Derenne, Sylvie Derenne, Sylvie Derenne, Sylvie Derenne, Sylvie Derenne, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Rachid Dris, Johnny Gaspéri, Rachid Dris, Bruno Tassin Johnny Gaspéri, Rachid Dris, Rachid Dris, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Rachid Dris, Bruno Tassin Rachid Dris, Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Bruno Tassin Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Rachid Dris, Bruno Tassin Bruno Tassin Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Johnny Gaspéri, Bruno Tassin Bruno Tassin Bruno Tassin Rachid Dris, Rachid Dris, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Bruno Tassin Bruno Tassin Johnny Gaspéri, Bruno Tassin Rachid Dris, Bruno Tassin Bruno Tassin Bruno Tassin Bruno Tassin Rachid Dris, Bruno Tassin Bruno Tassin Nadia Bouzid, Bruno Tassin Bruno Tassin Johnny Gaspéri, Nadia Bouzid, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Rachid Dris, Bruno Tassin Johnny Gaspéri, Johnny Gaspéri, Rachid Dris, Bruno Tassin

Summary

Researchers identified challenges in quantifying microplastics by pyrolysis-GC/MS in sediment samples, finding that incomplete matrix removal during purification can generate interfering pyrolysis products that lead to overestimation of microplastic concentrations.

Polymers
PE PET PP PS PVC
Study Type Environmental

Pyrolysis-GC/MS is increasingly used to quantify microplastics (MP) in environmental samples. In general, prior to analysis, purification steps are carried out to reduce the environmental matrix in sediment samples. The conventionally used protocol of density separation followed by digestion of organic matter does not allow for complete isolation of MP from the associated organic and mineral matter. Among the pyrolysis products used as indicator compounds for plastic polymers, some may originate from other substances present in the environmental samples. In this paper, the indicator compounds are reviewed for the most common polymers: PE, PP, PS, PET and PVC and selected taking into account potential interactions with substances present in environmental matrices. Even after a purification step, a residual mineral fraction remains in a sediment sample, including matrix effects. This effect may be positive or negative, depending on the investigated polymer and is thus important to consider when using Pyr-GC/MS for the quantification of MP in sediment samples. It also shows that no external calibration can be used to reliably quantify MP in such samples and that the use of internal standards is compulsory.

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