Article
Chemistry, Analytical
Lindomar A. Portugal, Edwin Palacio, Victor Cerda, Joao H. Santos-Neto, Laura Ferrer, Sergio L. C. Ferreira
Summary: A simple, fast, and non-chromatographic methodology for inorganic antimony speciation was developed, allowing accurate determination of Sb(III) and Sb(V) at ultra-trace levels in water samples.
Article
Food Science & Technology
Mei Ye, Jie Li, Ruipeng Yu, Xin Cong, Dejian Huang, Yue Li, Shangwei Chen, Song Zhu
Summary: This study establishes an efficient method for the speciation and extraction of five stable selenium species in plant foods. The developed technique combines reversed-phase ion-pair chromatography with triple quadrupole inductively coupled plasma mass spectrometry. The results show that organic selenium is an effective and safe source of selenium supplements, supporting human nutrition and health.
FOOD ANALYTICAL METHODS
(2022)
Article
Chemistry, Analytical
Yihuan Song, Qingfang Ma, Heyong Cheng, Jinhua Liu, Yuanchao Wang
Summary: A method utilizing online solid-phase extraction coupled with high performance liquid chromatography and inductively coupled plasma mass spectrometry was developed for simultaneous enrichment and analysis of ultra-trace lead and mercury species in water. This method allows for efficient and accurate determination of lead and mercury species in water samples, with high enrichment factors and low LODs and LOQs. The method was successfully applied to analyze trace lead and mercury species in various types of water samples, showing promising results for unstable sample analysis.
ANALYTICA CHIMICA ACTA
(2021)
Article
Environmental Sciences
Pei Li, Caijiao He, Daohui Lin
Summary: A new method for extracting and quantifying nanoplastics from biological samples was developed in this study. The method involved alkaline digestion, cloud point extraction, and gold nanoparticles formation for quantification using single particle inductively coupled plasma mass spectrometry. The method was proven to be efficient and sensitive, allowing for accurate quantification of different sizes and surface functionalities of polystyrene nanoparticles. The method was validated using representative organism samples and showed good recovery rates and low limits of detection, making it a useful approach for studying the environmental behavior and toxicity of nanoparticles.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biochemistry & Molecular Biology
Katarzyna Karas, Anetta Ziola-Frankowska, Marcin Frankowski
Summary: This paper presents a new method for simultaneous speciation analysis of arsenic and selenium forms using HPLC-ICP-MS technique, with successful separation achieved on ion exchange columns, applicable to seafood and onion samples.
Article
Chemistry, Analytical
Yue Luo, Gang Chen, Xiuqing Deng, Hanqing Cai, Xueheng Fu, Fujian Xu, Xiaonian Xiao, Yumeng Huo, Jin Luo
Summary: A method using high performance liquid chromatography-inductively coupled plasma-tandem mass spectrometry (HPLC-ICP-MS/MS) was developed for the speciation of six selenium species. The six species could be completely separated within 20 minutes under optimized conditions, and the method showed low detection limits and good recovery for selenium-enriched foods.
Review
Chemistry, Analytical
Swadesh Mandal, Susanta Lahiri
Summary: Cloud point extraction (CPE) is a greener alternative to conventional separation techniques in the field of analytical chemistry. This article provides an overview of various aspects of CPE and its recent developments, focusing on the extraction and speciation of metal ions and anionic species. The article also briefly discusses the extraction and determination of nanoparticles by CPE.
MICROCHEMICAL JOURNAL
(2022)
Review
Chemistry, Analytical
Jeffrey R. Bacon, Owen T. Butler, Warren R. L. Cairns, Olga Cavoura, Jennifer M. Cook, Christine M. Davidson, Regina Mertz-Kraus
Summary: Highlights in the field of air analysis during this review period include the development of new personal air samplers, passive air samplers for Hg-0, filter-based reference materials, field-deployable carbon analyzers, and advancements in the measurement of RCS using vibrational spectroscopic techniques. In the analysis of waters, there were no significant developments in AAS methods, but sample preparation showed novelty and interest in graphene oxide and magnetic nanoparticles. The analysis of nanoparticles may deserve a separate section in speciation. Advancements in the analysis of soils and plants included the development of alternative reference materials and the interest in miniaturized AES instruments for field deployment.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Chemistry, Applied
Wael I. Mortada, Mohamed M. El-Defrawy, Eman Erfan, Hala A. El-Asmy
Summary: A preconcentration procedure based on cloud point extraction and back-extraction was developed for speciation of inorganic vanadium. The method involves the use of CPE technique, complex formation, and back-extraction steps to achieve the separation and determination of different vanadium species.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Biochemical Research Methods
Veronique Vacchina, Dominique Foix, Mathieu Menta, Herve Martinez, Fabienne Seby
Summary: An analytical method was developed to confirm the presence of elemental selenium (Se(0)) in selenized yeasts using HPLC-ICP-MS and single-particle ICP-MS. The study found Se(0) to represent 10-15% of total Se in the yeasts. While both methods were able to detect Se(0), reliable quantitative results were not obtained.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Jakub Karasinski, Andrii Tupys, Ludwik Halicz, Ewa Bulska
Summary: This study developed a new method for accurate and precise determination of the Ge isotope ratio in synthetic water and geological samples using MC-ICPMS with hydride generation. Liquid-liquid extraction of Ge and standard-sample bracketing method were used to eliminate interferences and correct instrumental bias. The method improved precision by choosing optimal signals and increased sensitivity by controlling pH with acetic buffer. The newly developed method demonstrated superior sensitivity and accuracy compared to other methods.
ANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Yujian Lai, Lijie Dong, Qingcun Li, Peng Li, Zhineng Hao, Sujuan Yu, Jingfu Liu
Summary: A comprehensive method for detecting and counting nanoplastics (NPs) in environmental waters was developed using gold nanoparticle labeling and single particle inductively coupled plasma mass spectrometry. The method successfully detected various types and sizes (50-1200 nm) of NPs with high spiked recoveries, demonstrating its applicability in different scenarios.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Applied
Alongkote Singhato, Kunchit Judprasong, Piyanut Sridonpai, Nunnapus Laitip, Nattikarn Ornthai, Charun Yafa
Summary: Fish are a significant source of protein for Thai people due to their availability and affordability. This study investigated the chemical forms of selenium in the ten most commonly consumed freshwater and marine fish in Thailand. The results showed that organic forms of selenium, such as selenomethionine and selenocystine, were the major forms present in most fish species.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Analytical
Pawel Zagrodzki, Pawel Pasko, Enrique Dominguez-Alvarez, Noemi Salardon-Jimenez, Clotilde Sevilla-Hernandez, Carmen Sanmartin, Katarzyna Bierla, Ryszard Lobinski, Joanna Szpunar, Jadwiga Handzlik, Claus Jacob, Urszula Bieniek, Agnieszka Galanty, Shela Gorinstein
Summary: Novel selenorganic compounds were successfully applied to fortify kale sprouts in selenium, resulting in significantly higher selenium content compared to unfortified sprouts. Different selenium compounds delivered varying doses of selenium to the sprouts, with only a small percentage being incorporated as seleno-L-methionine, Se(IV) and Se-methylselenocysteine.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Tamara Fernandez-Bautista, Beatriz Gomez-Gomez, Roberto Palacin-Garcia, Emma Gracia-Lor, Teresa Perez-Corona, Yolanda Madrid
Summary: The distribution of Se and Hg in different protein fractions extracted from muscle tissues of tuna, swordfish, and salmon (wild vs. farmed) was investigated for the first time. The study revealed that Se and Hg were associated with proteins of specific molecular weights, with differences observed between farmed and wild salmon. Additionally, Se speciation studies showed SeMeSeCys as the primary selenium species found in the proteins analyzed.
Review
Instruments & Instrumentation
Man He, Beibei Chen, Han Wang, Bin Hu
APPLIED SPECTROSCOPY REVIEWS
(2019)
Article
Biochemical Research Methods
Yifeng He, Man He, Kai Nan, Rongkai Cao, Beibei Chen, Bin Hu
JOURNAL OF CHROMATOGRAPHY A
(2019)
Article
Chemistry, Analytical
Xiaolan Liu, Man He, Beibei Chen, Bin Hu
Article
Chemistry, Analytical
Xiao Yin, Bin Yang, Beibei Chen, Man He, Bin Hu
ANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Analytical
Xiao Yin, Beibei Chen, Man He, Bin Hu
Article
Biochemical Research Methods
Man He, Xiaoxiao Ou, Yuxin Wang, Zhenna Chen, Dandan Li, Beibei Chen, Bin Hu
JOURNAL OF CHROMATOGRAPHY A
(2020)
Article
Chemistry, Analytical
Guangyang Xiao, Beibei Chen, Man He, Bin Hu
ANALYTICA CHIMICA ACTA
(2020)
Article
Environmental Sciences
Yin Wang, Beibei Chen, Baoshan Wang, Man He, Bin Hu
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Chemistry, Analytical
Wenying Fan, Man He, Linna You, Beibei Chen, Bin Hu
JOURNAL OF SEPARATION SCIENCE
(2020)
Article
Chemistry, Analytical
Zhenna Chen, Beibei Chen, Man He, Bin Hu
Article
Chemistry, Analytical
Man He, Shaowei Su, Beibei Chen, Bin Hu
Article
Chemistry, Analytical
Xue Ren, Man He, Beibei Chen, Bin Hu
ANALYTICAL METHODS
(2020)
Article
Materials Science, Biomaterials
Xiao-Lei Ge, Biao Huang, Zhi-Ling Zhang, Xiaolan Liu, Man He, Zili Yu, Bin Hu, Ran Cui, Xing-Jie Liang, Dai-Wen Pang
JOURNAL OF MATERIALS CHEMISTRY B
(2019)
Article
Chemistry, Analytical
Xiaoxiao Ou, Man He, Beibei Chen, Han Wang, Bin Hu
Article
Biochemistry & Molecular Biology
Youxian Li, Man He, Beibei Chen, Bin Hu
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.