Article
Chemistry, Applied
Yudan Wang, Jia 'an Qin, Qian Lu, Jiao Tian, Tongwei Ke, Mengyue Guo, Jiaoyang Luo, Meihua Yang
Summary: In this study, a green analytical method was developed to extract and detect 20 analytes in edible herbs, including 10 neonicotinoid insecticides and their 10 major toxic metabolites. The QuEChERS and LC-MS/MS techniques were used for the analysis of these analytes in five edible herbs. Among the 109 herbal samples tested, 90 samples were found to be positive for the residues of the 20 neonicotinoid insecticides and their metabolites, with the range of total neonicotinoid insecticides residue being 0.26-139.28 μg/kg. Acetamiprid, imidacloprid, and their metabolites were the most frequently detected compounds in herbs. Positive correlations were observed between imidacloprid/acetamiprid and their metabolites in Lycii fructus and Citri reticulatae pericarpium. Therefore, the residue of neonicotinoid insecticides in edible herbs should be given more attention in the future.
Article
Multidisciplinary Sciences
Victor H. Gonzalez, John M. Hranitz, Mercedes B. McGonigle, Rachel E. Manweiler, Deborah R. Smith, John F. Barthell
Summary: This study investigates the impact of neonicotinoid insecticides on the thermal tolerance of honey bees. Surprisingly, exposure to sublethal doses of these insecticides enhances the heat tolerance and survival rates of bees. This suggests that honey bees have the ability to compensate for elevated temperatures when other stressors are present.
Article
Environmental Sciences
Xiuyu Pang, Chenyu Li, Chuanjiang Zang, Lei Guan, Peng Zhang, Chunxiang Di, Nan Zou, Beixing Li, Wei Mu, Jin Lin
Summary: A method for simultaneous detection of ten insecticide residues in honey and pollen was developed, using graphene and carbon nanotubes as efficient adsorbents. The method was applied to detect pesticide residues in honey and pollen samples collected from various provinces in China, showing chlorpyrifos residues in all honey samples and chlorpyrifos residues exceeding maximum limits in twenty percent of pollen samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Changqiu Zhang, Yanqing Li, Ningxia Yang, Minghui You, Jinhua Hao, Jiacheng Wang, Juxiu Li, Min Zhang
Summary: This paper reviewed the electrochemical sensors of neonicotinoid insecticides based on their molecular structure and different strategies. It aims to provide a reference for the effective design of electrochemical sensors for small molecule compounds.
Article
Chemistry, Applied
Vahideh Mahdavi, Zahra Eslami, Zahra Omidvari, Hassan Rezadoost, Van Nam Thai, Yadolah Fakhri
Summary: A multi-residue method was developed for detecting 45 pesticides from different groups in honey samples from Iran. Validation QuEChERS method was used for extraction and optimized UHPLC-MS/MS and GC-MS analysis were employed for identification and measurement of pesticide residues. The majority of observed pesticides in honey samples belonged to the group of insecticides, with lindane, diazinon, trichlorfon, and permethrin having higher levels. Health risk assessment based on Monte Carlo simulation showed no potential risks for adult and children consumers, except for lindane as a Persistent Organic Pollutants (POPs). Control plans should be implemented to reduce its concentration in Iran.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Chemistry, Applied
Qiaoyun Cheng, Minxing Huang, Ailing Xiao, Zhuoyan Xu, Xiaochu Chen, Yufeng Gao, Goubin Yu
Summary: Chitin-derived nitrogen-containing carbon microspheres exhibit excellent adsorption performance and stability in the analysis of neonicotinoid pesticide residues.
CARBOHYDRATE POLYMERS
(2021)
Review
Entomology
Kathy Overton, Ary A. Hoffmann, Olivia L. Reynolds, Paul A. Umina
Summary: Chemical control has been the main strategy for managing invertebrate pests in Australian grain fields, but this can have unintended effects on natural enemies. Most toxicity testing has been conducted in laboratory settings, leading to gaps in knowledge about the effects of chemicals on natural enemies in industry-relevant scales.
Article
Environmental Sciences
Qibao He, Shiyu Zhang, Fang Yin, Qiongqiong Liu, Quan Gao, Jinjing Xiao, Yong Huang, Linsheng Yu, Haiqun Cao
Summary: This study investigated the residue of pyrethroid insecticides in bee bread and honey from multiple provinces in China and found that over half of the samples contained at least one type of insecticide. The acute toxicity of these insecticides on larvae was assessed based on the detection results, and the hazard quotient was calculated. These findings provide valuable guidance for the beekeeping industry and pesticide regulation.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Agriculture, Multidisciplinary
Yiping Wang, Xiao Zhang, Yijin Kong, Wu-Lin Yang, Zhiping Xu, Jiagao Cheng, Xusheng Shao, Xiaoyong Xu, Zhong Li
Summary: In this study, a series of novel neonicotinoid analogues with conjugated diene were synthesized. Bioassays showed that compounds A3 and A12 exhibited similar toxicity against Myzus persicae as imidacloprid. Density functional theory (DFT) calculations and molecular docking results provided insights into the structure-activity relationship of these compounds and their interaction with the target protein. Hydrolysis experiments confirmed the enhanced stability of compounds A3 and A12 in water.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Analytical
Ahmed Qasim Abdulhussein, Arniza Khairani Mohd Jamil, Nor Kartini Abu Bakar
Summary: An effective modified pre-concentration technique, Cloud Point Extraction (CPE) coupled with QuEChERS, was developed to extract and clean up neonicotinoid pesticide residues from honey samples. The proposed method showed low limits of detection, high recoveries, and successfully detected trace amounts of neonicotinoids in honey samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Siwei Wang, Xinnian Zeng, Xiaonan Wang, Hong Chang, Haibin Sun, Yanping Liu
Summary: The study monitored 37 pesticide residues in 268 litchi samples, with all samples showing presence of pesticide residues, some containing up to 11 different pesticides. The most frequently detected pesticide in litchi was pyraclostrobin, with approximately 20% of samples exceeding maximum residue limits. Overall dietary risk of exposure to 23 detected pesticides through litchi ranged from 0% to 36.8%, and while pesticide residues were common, they did not pose a serious public health concern, emphasizing the importance of routine monitoring to ensure quality and safety.
MICROCHEMICAL JOURNAL
(2022)
Article
Environmental Sciences
Ye Yang, Kai Zheng, Lan-Ping Guo, Cheng-Xiao Wang, Du-Bo Zhong, Le Shang, Hong-Juan Nian, Xiu-Ming Cui, Shao-Jun Huang
Summary: A method for detecting various pesticide residues in Panax notoginseng was established, and the results showed that the pesticide residues were at a safe level and unlikely pose health risks to consumers.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Ecology
Selina Bruckner, Lars Straub, Peter Neumann, Geoffrey R. Williams
Summary: The study found that Varroa destructor and neonicotinoid insecticides may interact synergistically to negatively affect the survival of adult drones, but have antagonistic effects on emergence mass. While the impact of Varroa destructor and combined exposure on sperm quality remains unclear, neonicotinoids were observed to have no influence on sperm concentration or viability. This highlights the diverse effects of concurrent exposure to stressors on honey bees and suggests that Varroa destructor and neonicotinoids can severely affect the number of sexually mature adult drones available for mating.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Chemistry, Analytical
Yueting Liao, Yaohai Zhang, Qiyang Zhao, Wei Xiang, Bining Jiao, Xuesu Su
Summary: Metal organic framework MIL-101(Cr) was synthesized and combined with UPLC-MS/MS for enrichment and determination of neonicotinoids in fruit juices and tea beverages. The optimized conditions yielded excellent sensitivity and linearity for the target analytes.
MICROCHEMICAL JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Yahya Al Naggar, Robert J. Paxton
Summary: The study found that common viral pathogens pose a major threat to honey bees, while co-exposure to these novel nACHR insecticides does not significantly exacerbate viral impacts on host survival in the laboratory.
MICROBIAL BIOTECHNOLOGY
(2021)
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)