Article
Chemistry, Analytical
Mahshid Majd, Saeed Nojavan
Summary: The successful synthesis and characterization tests of mGO/beta-CD/MD showed that the composite effectively co-extracted pesticides of different polarity using the hydrophobic cavity of beta-CD and hydroxyl groups on the MD structure. Under optimized conditions, good linearity (r(2) ≥ 0.992) within the range of 1.0-1000 μg/L and extraction efficiencies of 66.4-95.3% were achieved.
Article
Chemistry, Applied
Zolfaghar Aladaghlo, Siamak Javanbakht, Ali Sahragard, Ali Reza Fakhari, Ahmad Shaabani
Summary: An ultrasound-assisted dispersive solid phase microextraction (UA-DSPME) approach was developed for trace level analysis of triazole fungicides in real samples. By using a newly prepared nanosorbent and optimizing extraction parameters, this method achieved good analysis performance.
Article
Chemistry, Applied
Sadin Ozdemir, M. Serkan Yalcin, Ersin Kilinc, Mustafa Soylak
Summary: Due to industrialization and overpopulation, toxic metals are increasing in the environment. Solid phase extraction is an efficient technique to preconcentrate the metals before measurement. Russula brevipes immobilized on gamma-Fe2O3 nanoparticles was used as a sorbent to preconcentrate Pb(II), Mn(II), and Co(II). Experimental parameters were examined to investigate the extraction conditions. LODs and biosorption capacities were determined for each metal. The developed method successfully preconcentrated trace levels of the metals in food samples.
Review
Environmental Sciences
Herbert Musarurwa, Nikita Tawanda Tavengwa
Summary: Polydopamine is widely used in the extraction and electrochemical sensing of pesticides in food and environmental matrices, but challenges exist.
Article
Chemistry, Analytical
Nasim Rezaie, Saeed Nojavan, Majid Behpour
Summary: A hydrogel-based sorbent was synthesized and used for the extraction of triazole fungicides in environmental water samples. The corona discharge-ion mobility spectrometry was used for rapid and sensitive detection. The method provided good linearity, low limits of detection, and high extraction recoveries.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Mahshid Majd, Saeed Nojavan
Summary: A high-performance sorbent was successfully synthesized and utilized for the extraction of polycyclic aromatic hydrocarbons from environmental samples using magnetic dispersive solid-phase extraction (MdSPE) method. The extraction variables were thoroughly optimized, resulting in high enrichment factors and extraction recoveries with good linearity and low detection limits. The fabricated sorbent showed excellent performance in extracting and quantifying PAHs in various pretreated environmental samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Applied
Rouhollah Karami-Osboo, Fatemeh Ahmadpoor, Mahmoud Nasrollahzadeh, Mehdi Maham
Summary: An efficient adsorbent was synthesized and applied in magnetic dispersive solid phase extraction of aflatoxins in pistachio, achieving good limits of detection and quantification under optimal conditions. The proposed method successfully determined the presence of aflatoxins in pistachio samples with acceptable recovery rates.
Article
Chemistry, Applied
Haili Sun, Juanjuan Feng, Jiaqing Feng, Mingxia Sun, Yang Feng, Min Sun
Summary: In this study, carbon aerogels were prepared by combining waste printing paper with graphene oxide and carboxylic multi-walled carbon nanotubes. The addition of graphene oxide reduced adsorption sites and extraction performance, while carbon nanotubes improved the pore structure of the carbon aerogels. The carbon aerogels were successfully used as adsorbents for solid-phase extraction of hexaconazole and diniconazole. The method showed potential for the determination of triazole fungicides.
Article
Chemistry, Analytical
Abolfath Shahsavani, Zolfaghar Aladaghlo, Ali Reza Fakhari
Summary: A polybenzidine-modified Fe3O4@SiO2 nanocomposite was successfully synthesized and employed as a sorbent for the determination of three triazole fungicides in various samples. The method involved the use of gas chromatography-flame ionization detection and optimization of various variables. The method exhibited good linearity, low limits of detection, acceptable precision, and negligible matrix effect, demonstrating its applicability for environmental analysis.
Article
Chemistry, Analytical
Yunjia Yang, Man He, Beibei Chen, Bin Hu
Summary: By synthesizing a novel adsorbent Fe3O4@SiO2/GO-NH2, a new method combining magnetic solid phase extraction (MSPE) and graphite furnace atomic absorption spectrometry (GFAAS) was developed for fast and efficient detection of trace arsenic species in water samples. After experimental optimization, the method achieved a detection limit of 1.02 ng L-1 for As(V) and provided accurate analysis results in real water samples.
Article
Chemistry, Analytical
Rhayza Victoria Matos Oliveira, Alessandra Ferreira Santos, Maria Danielly Lima Santos, Graziele da Costa Cunha, Luciane Pimenta Cruz Romao
Summary: In this study, magnetic hybrid materials composed of cobalt ferrite, natural organic matter, and graphene were synthesized and applied in the magnetic solid-phase extraction of bisphenol A from aqueous matrices. The developed method proved to be simple, fast, and efficient for the analysis of BPA in various aqueous matrices.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Rawikan Kachangoon, Jitlada Vichapong, Yanawath Santaladchaiyakit, Supalax Srijaranai
Summary: A micro-solid-phase extraction method using Moringa oleifera seed as a biosorbent material was developed for the enrichment and preconcentration of triazole fungicides. The method showed wide linear range, low detection limit, and good precision, making it suitable for the analysis of triazole fungicides in various samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Juntao Wang, Jiajia Liu, Weihua Liu, Ziwang Liu, Qiuhua Wu, Zhi Wang, Hongyuan Yan
Summary: A novel magnetic hyper crosslinked polymer (BTA-MHCP) was synthesized and used as an adsorbent for the rapid magnetic solid-phase extraction (MSPE) of 5-nitroimidazoles (5-NDZs). The key factors affecting the MSPE were optimized, and under the optimal conditions, the established method showed good linear response ranges, low limits of detection, and high method recoveries for both drinking water and fish samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Jiajie Yang, Minmin Li, Xiaowei Liu, Yonghong Liao, Haoran Zhao, Jieyin Chen, Xiaofeng Dai, Jesus Simal-Gandara, Zhiqiang Kong, Minwei Zhang
Summary: An efficient, sensitive, and convenient magnetic solid-phase extraction method combined with ultra-high performance liquid chromatography-tandem mass spectrometry (MSPE-UHPLC-MS/MS) was developed for the simultaneous determination of 19 succinate dehydrogenase inhibitor fungicide residues in six different food matrices. The tetraethylenepentamine magnetic graphene oxide nanocomposite demonstrated good dispersibility, large specific surface area, and large pore volume, making it an ideal adsorbent for succinate dehydrogenase inhibitor pretreatment. The MSPE-UHPLC-MS/MS method showed linear correlation and a low limit of quantification, with a recovery range of 71.2%-119.4% for succinate dehydrogenase inhibitor fungicides. This simple, rapid, and efficient MSPE method is an ideal alternative to sample pretreatment for the determination of trace succinate dehydrogenase inhibitor fungicides in complex matrices.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Biochemical Research Methods
Niloofar Salehpour, Mohammad Reza Bayatloo, Saeed Nojavan
Summary: Therapeutic peptides play a crucial role in physiological functions and human health. A magnetic solid-phase extraction method based on MHAP/SA was developed for efficient extraction of hypothalamic-related peptides, demonstrating effective quantification and detection of low levels of peptides in biological samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Hao-Ming Guo, Yue Zhao, Mei-Nan Ou Yang, Zhong-Hua Yang, Jian-Hong Li
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Agriculture, Dairy & Animal Science
Hao-Ming Guo, Yue Zhao, Mei-Nan Ou Yang, Zhong-Hua Yang
JOURNAL OF DAIRY SCIENCE
(2020)
Article
Chemistry, Applied
Ibrahim Abdelhai Senosy, Hao-Ming Guo, Mei-Nan Ouyang, Zhi-Heng Lu, Zhong-Hua Yang, Jian-Hong Li
Article
Environmental Sciences
Mei-Nan OuYang, Xiao Liu, Hao-Ming Guo, Zhi-Heng Lu, Dong-Dong Zhou, Zhong-Hua Yang
Summary: The study found that metalaxyl-M had a higher toxicity than metalaxyl on T. tubifex, and there were differences in the behaviors and toxic effects of the two compounds in both exposure and non-exposure processes.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Analytical
Ibrahim Abdelhai Senosy, Xin-Zhong Zhang, Zhi-Heng Lu, Xiao-Yu Guan, Zhong-Hua Yang, Jian-Hong Li, Hao-Ming Guo, Talat Mahmoud Abdelrahman, Mohamed Mmby, Asmaa Gbiliy
Summary: Fe3O4@MIL-100 (Fe)/PEI was utilized as an adsorbent for the extraction of pesticide residues from food matrices, characterized by various techniques and successfully applied for the quantification of triazole fungicides in fruits and vegetables. The method showed good linearity, low limits of detection, and high extraction recoveries, making it a promising and cost-effective material for pesticide residue analysis.
Article
Chemistry, Medicinal
Min Chen, Zhong-Hua Yang
Summary: The present study used stepwise regression analysis to establish quantitative relationships between degradation rates of different enantiomers and genes. The results showed that the relationships established for different enantiomers varied even under the same conditions, and the same functional gene contributed differently to the degradation rates of different enantiomers. In addition, the genome and microbial community structure showed variations during different enantiomer degradation rates.
Article
Environmental Sciences
Xiao Liu, Dong-Dong Zhou, Min Chen, Yi-Wen Cao, Lv-Yun Zhuang, Zhi-Heng Lu, Zhong-Hua Yang
Summary: Agricultural plastic films and triazole fungicides are widely used in agricultural production, but when the plastic degrades into microplastics, it may affect the toxicity and biological activity of pesticides. This study investigated the adsorption behaviors of two triazole fungicides on different types of plastics and found that factors such as particle size, pH value, and ionic strength can affect the adsorption capacity of microplastics. Competitive adsorption was also observed between the two pesticides.
Article
Chemistry, Medicinal
Min Chen, Hao-Ming Guo, Shan-Shan Di, Yue Zhao, Dong-Dong Zhou, Yi-Wen Cao, Pei Tian, Zhong-Hua Yang, Hui-Yu Zhao
Summary: Studies on the differences between chiral pesticide enantiomers have caused widespread concern. This study evaluated the selective behaviors and different biological activities of paclobutrazol enantiomers during the Chinese cabbage pickling process. The results showed significant differences in degradation rates and conversion between the two enantiomers. The study also revealed enantiomeric effects on the microbial community composition and highlighted the potential risks to human health.
Article
Engineering, Environmental
Dong-Dong Zhou, Qing-Yu Liu, Min Chen, Yi-Wen Cao, Lv-Yun Zhuang, Zhong-Hua Yang, Zhi Xu
Summary: In this study, a novel material Fe3O4@PDA@UiO-67 was synthesized and used as an adsorbent to remove azole fungicides from environmental water. The morphology and structure of this material were characterized, and it was found that modifying UiO-67 on magnetic PDA improved the adsorption capability. Under optimal conditions, the removal efficiencies of the fungicides were more than 90%. The adsorption mechanism was revealed using FT-IR, XPS analysis, and density functional theory calculations, showing that hydrogen bonds play a major role in the interaction between the MOF backbones and the pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Zheng Gang, Yi-Wen Cao, Zi-Ying Zeng, Min Chen, Shu-Tong Yang, Miao-Miao Su, Yun-Liu Zeng, Qin Tian, Zhong-Hua Yang
Summary: A magnetic adsorption material based on a metal-organic framework was designed and prepared for extracting fungicides from juice and water. The material showed potential as an adsorbent and achieved good experimental results through parameter optimization. Satisfactory recoveries and low RSD values were obtained when applied to real samples.
Article
Engineering, Environmental
Dong-Dong Zhou, Min Chen, Zhi-Heng Lu, Yi-Wen Cao, Lv-Yun Zhuang, Xiao Liu, Zhong Hua Yang, Qin Tian
Summary: The study aimed to reduce the negative impacts of flusilazole on the environment by using bimetallic MOF material as adsorbents. A magnetic bimetallic MOF composite material, Fe3O4@CeO2@MOF-5(Zn-Co), was synthesized and applied for the removal of flusilazole from the environment. The bimetallic magnetic MOF material exhibited significantly higher specific surface area and adsorption capacity compared to traditional single MOF materials. The optimal experimental conditions were determined, and the adsorption mechanisms of the material for flusilazole were analyzed. The synthesized Fe3O4@CeO2@MOF-5(Zn-Co) offered a simple and feasible method for the removal of flusilazole from environmental water samples and proposed the application of bimetallic MOFs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Hao-Ming Guo, Yue Zhao, Mei-Nan Ouyang, Zhong-Hua Yang
Summary: The study found that the degradation process of the two enantiomers in soil conforms to first-order degradation kinetics equation, with significantly different degradation rates. The degradation rate of S-paclobutrazol was higher than that of R-paclobutrazol, showing significant enantioselective degradation.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Ibrahim Abdelhai Senosy, Zhi-Heng Lu, Talat Mahmoud Abdelrahman, Mei-Nan Ou Yang, Hao-Ming Guo, Zhong-Hua Yang, Jian-Hong Li
ENVIRONMENTAL SCIENCE-NANO
(2020)
Article
Chemistry, Multidisciplinary
Dan-Dan Wang, Zhi-Heng Lu, Mei-Nan O. Yang, Hao-Ming Guo, Zhong-Hua Yang
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2020)
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)