Article
Chemistry, Analytical
Tim Lauschke, Georg Dierkes, Thomas A. Ternes
Summary: This study focuses on the effects of inorganic sample matrix on the pyrolysis of PET and discusses various approaches to tackle these issues. Inorganic matrix constituents caused changes in the distribution of pyrolysis products, reactions with the analytes, or losses of intensity due to decomposition of the specific markers used for identification and quantification of PET. Therefore, a fast, reliable thermoanalytical method for precise quantification of PET in complex environmental matrices cannot be recommended currently, and extensive, time-consuming sample clean-up protocols seem to be unavoidable.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Environmental
Jacopo La Nasa, Greta Biale, Marco Mattonai, Francesca Modugno
Summary: This study investigated the potential of microwave-assisted solvent extraction and double-shot Py-GC MS for analyzing microplastics and harmful additives in environmental samples, providing qualitative and quantitative information on plastic content and pollution levels, and discussing the impact of environmental factors on polymer leaching and degradation processes.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Environmental Sciences
Maria Veronica Zambrano-Pinto, Rolando Tinizaray-Castillo, Maria A. Riera, Naga Raju Maddela, Rafael Luque, Joan Manuel Rodriguez Diaz
Summary: This article reviews the presence and impact of microplastics on the environment, highlighting the importance of detection and characterization techniques, as well as microbial degradation methods, in addressing microplastic accumulation. The crucial role of environmentally-friendly and advanced technologies in plastic pollution management is emphasized, with a focus on the potential of enzymes and quantitative Nuclear Magnetic Resonance spectroscopy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Tsunefumi Kobayashi, Mitsuharu Yagi, Toshiya Kawaguchi, Toshiro Hata, Kenichi Shimizu
Summary: The study revealed spatial and temporal variations in microplastics near Kyushu, Japan, with significant differences in abundance and size. White and transparent polyethylene fragments were found to be the dominant composition, and there were significant differences in microplastic parameters among the survey months.
MARINE POLLUTION BULLETIN
(2021)
Review
Engineering, Environmental
Sungyup Jung, Seong-Heon Cho, Ki-Hyun Kim, Eilhann E. Kwon
Summary: The increase in plastics released into the environment has raised concerns, with current spectroscopic tools being the main method for identifying and measuring microplastics. However, accuracy decreases as particle size decreases. The emergence of pyrolysis-gas chromatography/mass spectrometry (Pyro-GC/MS) technology provides a new method for the identification and quantification of microplastics.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Victoria Regina Celso Monteiro Zanona, Carlos Eduardo Rodrigues Barquilha, Maria Cristina Borba Braga
Summary: The main objective of this research was to remove recalcitrant organic matter from landfill leachate by adsorption onto biochar produced from sewage sludge. It was found that the biochar produced at 850 degrees C and 60 min showed the best performance in removing chemical oxygen demand (COD), dissolved organic carbon (DOC), and color from the leachate. Therefore, the pyrolysis of sewage sludge to produce biochar is a promising alternative for sludge treatment and pre-treatment of landfill leachate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biochemical Research Methods
Irene Coralli, Isabel Gossmann, Daniele Fabbri, Barbara M. Scholz-Boettcher
Summary: Polyurethanes (PUR) are a group of polymers with numerous possible structures. This study aimed to analyze PUR in microplastic (MP) samples using pyrolysis-gas chromatography-mass spectrometry. The use of tetramethylammonium hydroxide (TMAH) was found to improve the analytical results by reducing the interactions between pyrolytic MP analytes and the organic matrix of the samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Irene Coralli, Valerio Giorgi, Ivano Vassura, Alessandro G. Rombol, Daniele Fabbri
Summary: The study found that mixtures of plastic particles of different types can undergo secondary reactions when co-pyrolyzed, leading to the formation of new pyrolysis products. The interaction between PET and PA6 and PA66 resulted in the generation of aromatic nitriles.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Review
Chemistry, Analytical
Guilherme Malafaia, Damia Barcelo
Summary: Given the growing research on microplastic contamination, this comprehensive review focuses on studies that have identified and characterized microplastics in human biological samples. While these studies have provided important insights, there is still a need for improvement in our understanding. The review highlights the challenges and hot spots in this field, such as the need for international collaboration networks, better recruitment criteria for volunteers, and improvements in sample collection, detection, and identification of microplastics. It also emphasizes the importance of implementing adequate quality assurance/control procedures to ensure more robust and reliable data on human contamination by microplastics.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Plant Sciences
Imran Azeem, Noman Shakoor, Sadaf Chaudhary, Muhammad Adeel, Muhammad Zain, Muhammad Arslan Ahmad, Yuanbo Li, Guikai Zhu, Syed Aizaz Ali Shah, Kashif Khan, Adnan Anwar Khan, Ming Xu, Yukui Rui
Summary: This systematic review highlights the lack of a universal, efficient, and cost-effective analytical method as the primary hindrance to studying microplastics and nanoplastics in soil and plant samples. Various techniques are utilized to detect and identify these plastics, providing a comprehensive methodology for assessing their presence in the environment.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Food Science & Technology
Simonetta Caira, Gianluca Picariello, Giovanni Renzone, Simona Arena, Antonio Dario Troise, Sabrina De Pascale, Valentina Ciaravolo, Gabriella Pinto, Francesco Addeo, Andrea Scaloni
Summary: This study aims to provide a comprehensive overview of bioactive food-derived peptides identified in various body fluids and tissues, and to describe their absorption mechanisms and metabolic processes. Available information suggests that while these peptides are present in organism tissues/body fluids, only a few of them have demonstrated substantial bioavailability and potential bioactivity.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2022)
Review
Engineering, Environmental
Adeel Rafiq, Jun-Li Xu
Summary: Current scientific studies on measuring microplastic occurrence in waste management lack standardized methodologies, leading to incomparable results. This review thoroughly examines sample preparation techniques and analytical approaches, assessing their benefits and limitations to develop accurate and effective detection methods. Recent research suggests that plastic recycling and composting facilities are the primary sources of microplastic pollution among different waste treatment methods.
Article
Biochemical Research Methods
Eliane Lazzari, Katia Arena, Elina B. Caramao, Paola Dugo, Luigi Mondello, Miguel Herrero
Summary: Pyrolysis processes can help reduce environmental issues related to agrifood industrial wastes, with bio-oil being the main product. The use of LC x LC has been shown to be beneficial in characterizing the water-soluble phases of bio-oils, but the precise composition of bio-oils from different agrifood byproducts remains unknown.
Article
Chemistry, Analytical
Takahisa Ishimura, Itsuko Iwai, Kazuko Matsui, Marco Mattonai, Atsushi Watanabe, William Robberson, Anna-Marie Cook, Harry L. Allen, William Pipkin, Norio Teramae, Hajime Ohtani, Chuichi Watanabe
Summary: This study investigated the effect of calcium carbonate catalyst on polymer pyrolysis behavior using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and validated the identification and quantification of polymers in mixed polymer samples by using standard polymer mixtures. The results showed that this method can achieve quick and accurate identification and quantification of various polymers in environmental microplastic samples.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Review
Food Science & Technology
Cristina Di Fiore, Fabiana Carriera, Mario Vincenzo Russo, Pasquale Avino
Summary: This systematic review investigates the discrepancies in the research on microplastics in foods, emphasizing the need for methodological standardization. Uncertainties still remain regarding the effects of microplastics on the human body, and the current scientific evidence is insufficient.
Article
Chemistry, Analytical
Jacopo La Nasa, Greta Biale, Barbara Ferriani, Maria Perla Colombini, Francesca Modugno
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2018)
Article
Humanities, Multidisciplinary
Jacopo La Nasa, Greta Biale, Francesca Sabatini, Ilaria Degano, Maria Perla Colombini, Francesca Modugno
Article
Biochemistry & Molecular Biology
Jacopo La Nasa, Greta Biale, Barbara Ferriani, Rafaela Trevisan, Maria Perla Colombini, Francesca Modugno
Article
Engineering, Environmental
Jacopo La Nasa, Greta Biale, Marco Mattonai, Francesca Modugno
Summary: This study investigated the potential of microwave-assisted solvent extraction and double-shot Py-GC MS for analyzing microplastics and harmful additives in environmental samples, providing qualitative and quantitative information on plastic content and pollution levels, and discussing the impact of environmental factors on polymer leaching and degradation processes.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Valter Castelvetro, Andrea Corti, Greta Biale, Alessio Ceccarini, Ilaria Degano, Jacopo La Nasa, Tommaso Lomonaco, Antonella Manariti, Enrico Manco, Francesca Modugno, Virginia Vinciguerra
Summary: The study of sampling, separation, detection, and characterization of microplastics is crucial for understanding environmental hazards, with a need for reliable analytical protocols to quantify microplastics and other pollutants. Specialized techniques can accurately determine common polymers found in polluted sediments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Polymer Science
Greta Biale, Jacopo La Nasa, Marco Mattonai, Andrea Corti, Virginia Vinciguerra, Valter Castelvetro, Francesca Modugno
Summary: The study analyzed the degradation processes of naturally photo-aged microplastic particles in the environment, revealing the generation of extractable low molecular weight products during photo-degradation. Different types of polymers produced different types of degradation products during the degradation process.
Article
Environmental Sciences
Francesco Saliu, Greta Biale, Clarissa Raguso, Jacopo La Nasa, Ilaria Degano, Davide Seveso, Paolo Galli, Marina Lasagni, Francesca Modugno
Summary: Plastic pollution poses a threat to the marine environment, and efficient analytical solutions are needed to study the impacts of micro and nanoplastic contamination. This study developed a new analysis workflow using marine sponges as biosamplers to monitor plastic pollution and demonstrated the reliability of the method.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Guanshuai Zhang, Shanjian Liu, Dongmei Bi, Zhisen He, Jia Liu, Yinjiao Liu
Summary: Hydrogen peroxide pretreatment was applied for fast pyrolysis of corn stalks, and it was found that the pretreatment effectively promoted lignin depolymerization and decreased the reaction activation energy. The pretreatment also increased the cellulose content and removed alkali and alkaline earth metals from the biomass. The pH of the hydrogen peroxide solution affected the removal of lignin and ash by the pretreatment, and the composition of bio-oil changed significantly, with a significant increase in the relative content of levoglucosan after pretreatment.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2024)
