Article
Agriculture, Multidisciplinary
Hildegard Just, Bernd Goeckener, Rene Laemmer, Lars Wiedemann-Krantz, Thorsten Stahl, Joern Breurer, Matthias Gassmann, Eva Weidemann, Mark Bucking, Janine Kowalczyk
Summary: This study investigates the degradation and transfer rates of fluorotelomer precursors and F-53B in soil. The results show that short-chain PFCAs can be translocated to the shoots, while long-chain PFCAs mainly remain in the soil. Fluorotelomer phosphate diesters exhibit the highest degradation potential in the soil.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Environmental Sciences
Sori Mok, Sunggyu Lee, Younghun Choi, Junho Jeon, Young Hee Kim, Hyo-Bang Moon
Summary: Novel and emerging per- and polyfluoroalkyl substances (PFAS) are a global environmental concern. This study characterized the contamination profiles of these substances in air, sediment, and wastewater samples collected from areas near fluorochemical-related industrial facilities. The results showed that fluorotelomer alcohols were the predominant PFAS in the samples, and there was a shift in usage patterns from C8 to C6-based fluorotelomers. Air and sediment were identified as mobile and secondary sources of PFAS. The study sheds light on the distribution and transport of PFAS in different matrices.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Engineering, Environmental
Keegan J. Harris, Gabriel Munoz, Vivian Woo, Sebastien Sauve, Amy A. Rand
Summary: This study aimed to investigate the sources and levels of PFAS in cosmetics and personal care products. The results showed a widespread presence of PAPs in these products, while the concentrations of PFCA and PFSA were relatively low. Additionally, other classes of PFAS substances were detected, suggesting potential human and environmental exposure from cosmetics and personal care products.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Nicholas J. Herkert, Christopher D. Kassotis, Sharon Zhang, Yuling Han, Vivek Francis Pulikkal, Mei Sun, P. Lee Ferguson, Heather M. Stapleton
Summary: This study analyzed the per- and polyfluorinated alkyl substances in anti-fog products, finding significant variations in PFAS concentrations and the presence of FTEOs contributing to adipogenic activity. More research is needed to fully understand the health risks associated with using these PFAS-containing products.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Chunjie Xia, Miriam L. Diamond, Graham F. Peaslee, Hui Peng, Arlene Blum, Zhanyun Wang, Anna Shalin, Heather D. Whitehead, Megan Green, Heather Schwartz-Narbonne, Diwen Yang, Marta Venier
Summary: This study analyzed 72 children's textile products from US and Canadian stores and found that all products contained PFAS, with 6:2 FTOH being the most abundant compound. School uniforms had higher concentrations of PFAS compared to other items, especially those made of 100% cotton. The estimated potential children's exposure to PFAS through dermal contact with school uniforms was 1.03 ng/kg bw/day.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Sibel Barisci, Rominder Suri
Summary: The study evaluated the degradability and fate of polyfluorinated telomer alcohol TFHFESE in different water matrices using various AOPs. Results showed that UV-based processes provided the most effective degradation efficiency, while ozonation could also effectively degrade TFHFESE, though with decreased efficiency in the presence of H2O2.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Heidelore Fiedler, Mohammad Sadia, Abeer Baabish, Siamak Sobhanei
Summary: The global monitoring plan established under the Stockholm Convention on Persistent Organic Pollutants defines ambient air, human milk or blood, and water as core matrices to be analyzed. In a study conducted by the United Nations Environment Programme, samples from 26 countries in Africa, Asia, and Latin America were analyzed for PFAS. The results showed that PFOS and PFOA had the highest detection frequency and median values. Water, sediment, and fish had the most complex pattern of PFAS distribution, while dairy products and chicken meat had less presence of PFAS. Among the 137 foods analyzed, only two fish samples exceeded the limit values proposed by the European Commission.
Article
Environmental Sciences
Adria Sunyer-Caldu, Oksana Golovko, Michal Kaczmarek, Hakan Asp, Karl -Johan Bergstrand, Ruben Gil-Solsona, Pablo Gago-Ferrero, M. Silvia Diaz-Cruz, Lutz Ahrens, Malin Hultberg
Summary: Recovering and reusing nutrients in agriculture is a challenge. Anaerobic digestion of food waste is a sustainable process that can recycle nutrients for use as fertilizers. However, the digestate may contain contaminants that pose risks to the environment and human health.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Sheng Dong, Peng-Fei Yan, Chen Liu, Katherine E. Manz, Melissa P. Mezzari, Linda M. Abriola, Kurt D. Pennell, Natalie L. Capiro
Summary: The production of 8:2 fluorotelomer alcohol (8:2 FTOH) for various products has led to its widespread presence in the environment, including AFFFs used for firefighting. However, the fate of 8:2 FTOH at AFFF-impacted sites is not well understood. This study conducted microcosm experiments using AFFF-impacted soils to investigate the biotransformation of 8:2 FTOH and its impact on microbial communities. The results showed rapid transformation of 8:2 FTOH in the soils, leading to the formation of 7:2 secondary fluorotelomer alcohol (7:2 sFTOH) and perfluorooctanoic acid (PFOA) as major byproducts. Novel transformation products, such as perfluoroalkane-like compounds, were also detected.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Lijie Duan, Jian Wei, Jinshan Wei, Minghao Wang, Yong Wang, Xue Cheng, Mengbin Gu, Xinyi Zhang, Xianghua Wen, Yonghui Song
Summary: In this study, boron nitride (BN) photocatalysis was found to effectively degrade 6:2 FTS with a removal rate of 100%, a degradation rate of 1.8 h-1, and a defluorination rate of 57.3%. The superior performance of BN was attributed to oxygen dopants defects, and ball-milled BN with increased oxygen dopants exhibited a higher degradation rate of 2.88 h-1. Furthermore, the study demonstrated that holes (h+), hydroxyl radicals (center dot OH), and superoxide (center dot O2-) played significant roles in the heterogeneous photocatalytic degradation of 6:2 FTS.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Georgios Niarchos, Lutz Ahrens, Dan Berggren Kleja, Fritjof Fagerlund
Summary: This study investigated the use of colloidal activated carbon (CAC) in stabilizing per- and polyfluoroalkyl substance (PFAS) in soil. The results showed higher retardation rates for long-chain PFAS and increased retention of PFAS in the CAC-treated soil compared to the non-treated soil. Additionally, the study observed the redistribution and elution of CAC during the experiments.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Mike Williams, Grant Douglas, Jun Du, Jason Kirby, Rai Kookana, John Pengelly, Garth Watson, Karl Bowles, Greg Davis
Summary: The historical use of AFFF containing PFAS for fire-fighting activities has led to widespread infrastructure contamination, posing ongoing environmental risks. This study measured PFAS concentrations in a concrete fire training pad with historical AFFF use, revealing spatial variability throughout the pad. Surface chips and whole cores of concrete, including the underlying aggregate base, were collected for analysis. Despite variations in individual PFAS along the core depth profile, higher surface concentrations generally followed the water movement direction. The study highlights the presence of PFAS throughout the concrete, with variable concentrations across the profile.
Article
Environmental Sciences
Heidelore Fiedler, Mohammad Sadia
Summary: The study analyzed human milk samples from 44 primiparae in 42 countries, showing significant differences in concentrations of PFOA and PFOS, with higher levels of PFOA in wealthier countries. No correlation was found for population density.
Article
Engineering, Environmental
Andrea Valencia, Diana Ordonez, A. H. M. Anwar Sadmani, Debra Reinhart, Ni-Bin Chang
Summary: The persistence, transport, transformation, and accumulation of per- and polyfluoroalkyl substances (PFAS) in the environment has led to their wide availability for industrial applications. This study investigated the effectiveness of two specialty adsorbents, ZIPGEM and CPS, in the removal of long-chain and short-chain PFAS. The results showed that adsorption was the dominant mechanism for PFAS removal, with some possible transformation from long-chain to short-chain PFAS.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Marina G. Evich, Mary Davis, Eric J. Weber, Caroline Tebes-Stevens, Brad Acrey, William Matthew Henderson, Sandra Goodrow, Erica Bergman, John W. Washington
Summary: Although next-generation PFAS were designed as safer alternatives, there is limited evidence on their transformation and the safety of transformed products in the environment. In New Jersey soils, multiple congeners of one such PFAS alternative have been found, and potential reaction products were predicted based on analogous PFAS transformation pathways. However, no evidence of ether scission has been identified so far.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Matthias Muschket, Carolina Di Paolo, Andrew J. Tindall, Gerald Touak, Audrey Phan, Martin Krauss, Kristina Kirchner, Thomas-Benjamin Seiler, Henner Hollert, Werner Brack
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Engineering, Environmental
Bettina Seiwert, Maolida Nihemaiti, Coretta Bauer, Matthias Muschket, Daniel Sauter, Regina Gnirss, Thorsten Reemtsma
Summary: The study utilized SFC-HRMS compared to RPLC-HRMS to identify new products in ozonated wastewater treatment, demonstrating the advantages of gas chromatography-mass spectrometry for highly polar analytes. Results showed that a combination of sand/anthracite and fresh post-granular activated carbon was most effective in removing products, but several persistent products were still observed.
Article
Environmental Sciences
Matthias Muschket, Werner Brack, Pedro A. Inostroza, Liza-Marie Beckers, Tobias Schulze, Martin Krauss
Summary: A recent study investigated the sources, distribution, and fate of novel environmental contaminants in the Holtemme River, Germany, finding that cation binding played a significant role in the sorption behavior of these compounds. The study also revealed that the main source of these contaminants was a wastewater-treatment plant and showed significant persistence in aquatic systems with minimal transformation.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Engineering, Environmental
Isabelle Neuwald, Matthias Muschket, Daniel Zahn, Urs Berger, Bettina Seiwert, Till Meier, Jochen Kuckelkorn, Claudia Strobel, Thomas P. Knepper, Thorsten Reemtsma
Summary: HILIC and SFC coupled to HRMS were used to search for PM chemicals in surface waters, identifying 64 compounds with high polarity and low molecular weight. The discovery of novel water contaminants suggests that the universe of PM chemicals in the environment has been scarcely explored.
Correction
Biochemical Research Methods
Yong Wang, Suhua Yu, Rui Li, Jing Wan, Yuheng Wang, Zongli Huo, Chunyong Wu, Li Mi, Songqin Liu
JOURNAL OF CHROMATOGRAPHY A
(2024)
Review
Biochemical Research Methods
Israel D. Souza, Maria Eugenia C. Queiroz
Summary: Organic-silica hybrid monolithic materials have gained significant attention in separation science and sample preparation due to their unique properties. This review summarizes the characteristics, current status, and recent developments of these materials, as well as discusses synthesis methods, characterization techniques, and strategies for improving extraction efficiency in various applications.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Bhagwat Upreti, Bhanu Prasad Vempatapu, Jagdish Kumar, Pankaj K. Kanaujia
Summary: Lubricating oils are essential for the effective performance of internal combustion engines. This study presents a new HPLC method for determining additives in finished lubricating oils and polar substances in used engine oils.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zongqing Huang, Haoju Hua, Xiuzhen Du, Zipeng Zhen, Wei Zhao, Jun Feng, Ji-an Li
Summary: This study successfully isolated VHHs against the SUMO protein for the first time using biopanning of an immune camelid nanobody library. The VHHs were coupled to agarose resins to form affinity chromatography resins, allowing for one-step purification of various SUMO fusions.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Xueting Qiu, Xuben Hou, Yue Yang, Hao Fang, Fei Cui, Xinying Yang
Summary: In this study, a new method based on electrophoretically mediated microanalysis was developed for the investigation of PTPRO enzymatic activity. The method was successfully used to determine the kinetics of PTPRO and the inhibitory concentration of PTPRO inhibitors. The method exhibited improved accuracy and reduced consumption compared to traditional methods.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Feifei Luo, Mengmeng Hao, Lei Zhang, Yangguo Xie, Wei Hou, Hongya Wang, Zhongli Zhang
Summary: In this study, a comprehensive screening and structure elucidation of 23 nonvolatile organic compounds (NVOCs) in two antibody drugs was conducted. Seven previously unreported compounds were identified. A quantitative method with high sensitivity, accuracy, and precision was developed for evaluating the safety of NVOCs in drug products.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zuzana Vosahlova, Kveta Kalfkova, Martin Gilar, Jakub Szymarek, Maria Mazurkiewicz-Beldzinska, Sylwia Studzi
Summary: A hydrophilic interaction liquid chromatography method was developed for the separation and identification of oligonucleotide impurities and metabolites, and successfully applied to the analysis of serum samples from Spinraza-treated patients.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Aswanidevi Kongasseri, Thirumalai Madhesan, Sangeetha Krishna Kumar, Sushmitha Pedugu Sivaraman, Suchashrita Mitra, Pitchaiah Kancharlapalli Chinaraga, C. V. S. Brahmmananda Rao, Sivaraman Nagarajan, Prabhakaran Deivasigamani, Akhila Maheswari Mohan
Summary: This study focuses on the sequential separation of trivalent lanthanides using modified C-18 silica-packed supports and reversed-phase HPLC technique. By tuning the column modifiers and separation parameters, the researchers achieved systematic separation of Ln(3+). The results showed that the choice of column modifiers and fine-tuning of the modification procedure were crucial for achieving excellent separation.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Raquel Perez-Robles, Szabolcs Fekete, Robert Kormany, Natalia Navas, Davy Guillarme
Summary: There is a mismatch between the sample diluent and the mobile phase in HILIC analysis, leading to analyte breakthrough and peak distortion. Adding a weak solvent for pre-injection can effectively prevent these issues and improve sensitivity.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Oleg Pokrovskiy, Irina Rostovschikova, Konstantin Ustinovich, Ilya Voronov, Dmitry Kosyakov
Summary: A chromatography-like propagation of water through the material bed was observed during supercritical fluid extraction of aroma plants with high moisture content, which could be significant for modeling the kinetics of supercritical fluid extraction of non-volatile compounds.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Yasar Kemal Recepoglu, Ozguer Arar, Asli Yuksel
Summary: Biosorption using phosphorylated hazelnut shell waste (FHS) is a promising method for lithium removal and recovery. This study investigated the performance of a continuous-flow packed-bed column system using FHS for ultra-low level lithium removal. The results showed that the lihium biosorption capacity of the FHS column was unaffected by the bed height, but decreased with increasing flow rate.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Jian Sun, Zheheng Zheng, Zixiao Jia, Jiabin Wang, Xucong Lin
Summary: In this study, an ionic covalent organic framework (iCOF) surface grafting monolithic sorbent was prepared for in-tube solid-phase microextraction (SPME) of aristolochic acids (AAs) in various samples. The density of quaternary ammonium ions in the iCOF was modulated for enhanced adsorption of AAs. The iCOF surface grafting monolithic sorbent was confirmed by different means. Several operating conditions were optimized to develop the online in-tube SPME-HPLC method, which showed good linearity, low limits of detection, and high recoveries for AAs in serum samples. This study presents a feasible approach for the application of COF-based monolithic sorbents in sample preparation.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zeng Wen, Ruihan Peng, Die Gao, Jing Lin, Jia Zeng, Zhou Li, Famin Ke, Zhining Xia, Dandan Wang
Summary: A chitosan-alginate sponge with multiple cross-linking networks was developed for adsorption and enrichment of anionic dyes from food samples. The sponge showed better three-dimensional network structure, mechanical behavior, and stability compared to pure chitosan and alginate sponges. The adsorption performance and selectivity of the sponge were systematically studied, and it maintained high adsorption capacity and selectivity for anionic dyes. The sponge also showed satisfactory reusability and was successfully combined with high-performance liquid chromatography for the enrichment and detection of anionic dyes in candy and cocktail samples.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Hairong Zhang, Xiaojuan Jiang, Dandan Zhang, Yuexin Yang, Qiang Xie, Caisheng Wu
Summary: Analysis of in vivo exposure to traditional Chinese medicine using mass spectrometry is helpful for identifying effective ingredients and developing new drugs. This study focused on Forsythia suspensa (Lian Qiao) and used metabolomics technology to explore its in vivo exposure. By comparing the differences before and after administration, a complete set of nontargeted analysis strategies for TCM exposure was established. The study identified 393 Lian Qiao-related chemical components in mice after administration, including prototypes and metabolites. This study provides a reference for research on the active ingredients of Lian Qiao in vivo.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Oscar Castejon-Musulen, Ricardo Lopez, Ignacio Ontan, Vicente Ferreira
Summary: A quantitative analytical method was developed and validated in this study to determine the concentrations of 81 aroma-relevant wine volatiles. The method utilizes stir bar sorptive extraction and multidimensional gas chromatography with flame ionization detector or mass spectrometer. The method demonstrated good linearity, reproducibility, and recovery, and was successfully applied to analyze 20 wine samples.
JOURNAL OF CHROMATOGRAPHY A
(2024)