Article
Agronomy
Yumei Peng, Huasen Xu, Zi Wang, Jia Shi, Junfei Lv, Xiang Wang
Summary: This study investigates the changes in the quantity and quality of dissolved organic matter (DOM) in intercropping soil under drought conditions. It finds that intercropping can provide more bioavailable resources and soil carbon inputs, but further data is needed to understand its response to drought.
Article
Engineering, Environmental
Yuanyuan Luo, Yangyang Zhang, Mengfan Lang, Xuetao Guo, Tianjiao Xia, Tiecheng Wang, Hanzhong Jia, Lingyan Zhu
Summary: The dissolved organic matter (DOM) in the Wei River surface water and sediment originates mainly from microbial metabolic activity and surrounding soil, with different characteristics between the two sources. DOM in the surface water exhibits higher photodegradation potential compared to sediment DOM, with terrestrial humic-like material in water and fulvic-like components in sediment degrading more rapidly according to PARAFAC analysis.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2021)
Article
Energy & Fuels
Yu Ning, Zhiqiang Luo, Yilian Li, Zhe Yang, Danqing Liu, Yangyang Zhang
Summary: The study investigated the leachability of uranium from coal using sodium carbonate-bicarbonate mixtures and the dissolution of coal humic substances in the leaching process. It was found that under optimal conditions, the leaching efficiency of uranium from coal increased with temperature and leaching agent concentration. The dissolution of HA-like substances was hypothesized to be a key factor in the alkaline leaching of uranium from coal, as indicated by the significant correlation between uranium concentration and fluorescence components in the leachate.
Article
Forestry
Shinji Kaneko, Hitomi Furusawa, Toru Okamoto, Yasuhiro Hirano
Summary: We investigated the changes in dissolved organic matter (DOM) from rain to stream water in a forested watershed. DOM supply from tree tissue and O layer caused an increase in dissolved organic carbon (DOC) concentration and specific UV absorbance at 254 nm (SUVA(254)) in rainwater. The decrease in DOC concentration and SUVA(254) with soil depth was not observed in the soil-percolating water. DOC concentration was low in both seepage and stream waters, with a seasonal variation observed in the stream water. The correlation between DOC concentration and absorbance at 254 nm (UV254) was significant, with different ratios observed among different sample types.
Article
Environmental Sciences
Weining Xu, Huibin Yu, Fang Yang, Feng Yang, Dongping Liu, Koutian Lu, Hongjie Gao, Yonghui Song
Summary: This study characterized the structural components and spatial variations of dissolved and particulate organic matters in an urbanized river using the SDUVS technique. The results revealed that the proportions of different components varied along the human impact gradient, with higher proportions observed in the tributaries for the DOM pool and similar trends observed for the POM pool.
ENVIRONMENTAL SCIENCES EUROPE
(2022)
Article
Environmental Sciences
Dongxu Zhang, Xiaoyu Chen, Guangjun Fu, Zhou Yang, Jia Song, Xiaogang Tong
Summary: The chemistry of dissolved organic matter (DOM) in soil plays a crucial role in soil nutrient cycling and vegetation restoration. This study found that as the vegetation restoration progressed, the concentration of DOM increased in the soil. The composition and properties of DOM were influenced by dissolved organic carbon in arbor forest, while dissolved organic nitrogen mainly affected DOM in shrubland.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agronomy
Miroslaw Kobierski, Magdalena Banach-Szott
Summary: This study aimed to determine the relationship between the organic matter properties of Fluvisols (arable soil and grassland) and nearby riverbank sediments, and found that the properties of organic matter in Fluvisols are influenced by the quantity and quality of organic matter transported in suspended matter during flood events in flood valleys. The current land-use type significantly impacted the properties of organic matter in Fluvisols.
Article
Environmental Sciences
Yijuan Bai, Shurong Zhang, Enlin Mu, Yinjun Zhao, Lirong Cheng, Yi Zhu, Yumin Yuan, Yingying Wang, Aizhong Ding
Summary: Artificial flow regulation is an important measure for improving water shortages and river basin ecological quality. This study investigates the impact of different artificial regulation modes on the source, migration, and transformation of dissolved organic matter (DOM) in rivers. The findings provide insights for developing appropriate management strategies and understanding the effects of artificial flow regulation on carbon cycles and ecological risks in river basins.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Laura A. Logozzo, Joseph W. Martin, Johnae McArthur, Peter A. Raymond
Summary: Dissolved organic matter (DOM) has an impact on the structure and function of aquatic ecosystems. The presence of Ferric iron, Fe(III), can result in an overestimation of DOM-attributed absorbance. The overestimation is correlated to the Fe(III):dissolved organic carbon concentration ratio and can occur even at low Fe(III) concentrations. UV-Vis overestimation can introduce biases to seasonal, discharge, and land-use trends in DOM quality.
Article
Environmental Sciences
Keke Xiao, Harald Horn, Gudrun Abbt-Braun
Summary: The role of humic substances in sludge treatment has been the focus of attention. Quantification and characterization of humic substances are crucial for understanding their role in different sludge treatment processes. However, the current methods for quantification of humic substances in sludge show overestimation and contradictory results.
Article
Soil Science
Md. Imam Hossain, Munehide Ishiguro
Summary: Accurate estimation of DBS concentration in solutions containing DOM is essential for various environmental studies. Our proposed method using UV spectrophotometry at 222.5 and 400 nm wavelengths allows for precise detection of DBS in the presence of DOM. This simple, rapid, and cost-effective method can be used for accurate DBS estimation in various environmental samples.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2022)
Article
Environmental Sciences
Leilei Luan, Liangmin Gao, Xudong Chen, Juan Ge, Ming Mu, Xiaoqing Chen, Xinglan Zhao, Zhen Zhang, Haiqiang Zhang
Summary: This study examined the relationship between DOM components and rotifer communities in natural rivers. The results showed significant differences in the composition and diversity of rotifer communities among different areas, which might be related to the types of DOM and geographical distances. Rotifer communities were found to be closely related to the parameters of DOM components.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Jinjing Lan, Lili Liu, Xu Wang, Xiaoxin Wu, Zhiping Wang
Summary: This study analyzed organic pollutants in rural domestic sewage and urban domestic sewage using different spectroscopy techniques. It found that fluorescence excitation-emission matrix (EEM) was able to detect easily degradable organics and reveal the transformation of different components, thus indicating the timely treatment progress of rural sewage. Additionally, the combination of UV254 and fluorescence excitation-emission at Ex/Em = 250/330 nm might be more suitable for predicting COD in rural water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Rongting Ji, Lianghu Su, Hu Cheng, Yuan Wang, Ju Min, Mei Chen, Haidong Li, Sujuan Chen, Saier Wang, Guo Yu, Longjiang Zhang, Jiangang Han
Summary: In this study, three agro-forest waste-derived hydrochars were prepared and their characteristics were analyzed. The environmental, feedstock, and temperature were identified as the main influencing factors on the specific chemical properties of HDOM. Released HDOM plays a significant role in soil remediation, carbon sequestration, wastewater treatment, and soil fertility improvement.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Shuang Chen, Qiaorong Xie, Sihui Su, Libin Wu, Shujun Zhong, Zhimin Zhang, Chao Ma, Yulin Qi, Wei Hu, Junjun Deng, Lujie Ren, Dongqiang Zhu, Qingjun Guo, Cong-Qiang Liu, Kyoung-Soon Jang, Pingqing Fu
Summary: The study reveals the sources and molecular composition of rainwater dissolved organic matter (DOM) in the Yangtze River Basin using fluorescence and mass spectrometry techniques. The results show that biogenic volatile organic compounds, atmospheric transport, biomass burning, and industrial emissions contribute to rainwater DOM composition. More than 70% of rainwater DOM molecules are associated with 36 transformation mechanisms during rainwater-scavenging processes.
Article
Biochemical Research Methods
Vaughn Mangal, Naomi L. Stock, Celine Gueguen
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2016)
Review
Chemistry, Analytical
C. W. Cuss, C. Gueguen
ANALYTICAL METHODS
(2016)
Article
Biotechnology & Applied Microbiology
Cameron Winters, Celine Gueguen, Adam Noble
JOURNAL OF APPLIED PHYCOLOGY
(2017)
Article
Chemistry, Analytical
Weibin Chen, Celine Gueguen, D. Scott Smith
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2017)
Article
Environmental Sciences
Yong Xiang Shi, Celine Gueguen
WATER AIR AND SOIL POLLUTION
(2017)
Article
Engineering, Environmental
Weibin Chen, Celine Gueguen, D. Scott Smith, Josep Galceran, Jaume Puy, Encarnacio Companys
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Environmental Sciences
Deli Wang, Shuimiao Lu, Nengwang Chen, Minhan Dai, Celine Gueguen
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2018)
Article
Environmental Sciences
Alan Lock, Dirk Wallschlager, Nelson Belzile, Graeme Spiers, Celine Gueguen
JOURNAL OF ENVIRONMENTAL SCIENCES
(2018)
Article
Chemistry, Multidisciplinary
Zhiyuan Gao, Celine Gueguen
Article
Engineering, Environmental
Vaughn Mangal, Benjamin R. Stenzler, Alexandre J. Poulain, Celine Gueguen
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Oceanography
P. G. Dainard, C. Gueguen, M. Yamamoto-Kawai, W. J. Williams, J. K. Hutchings
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Environmental Sciences
Vaughn Mangal, Ta Phung, Thien Q. Nguyen, Celine Gueguen
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2019)
Article
Biology
David Colatriano, Patricia Q. Tran, Celine Gueguen, William J. Williams, Connie Lovejoy, David A. Walsh
COMMUNICATIONS BIOLOGY
(2018)
Article
Environmental Sciences
V. Mangal, Y. X. Shi, C. Gueguen
Article
Oceanography
Zhiyuan Gao, Celine Gueguen
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2017)
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)