Article
Environmental Sciences
Monica Martinez-Haro, Jose Manuel Chinchilla, Pablo R. Camarero, Jose Alberto Vinuelas, Maria Jesus Crespo, Rafael Mateo
Summary: A procedure based on liquid chromatography-high resolution tandem mass spectrometry was developed for the determination of glyphosate in wildlife gastric content. The method was validated and shown to be accurate and precise. The results revealed a higher prevalence of glyphosate in animals from pesticide-treated areas compared to animals from pesticide-free areas.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Toxicology
Yun-Chung Hsiao, Gregory Johnson, Yifei Yang, Chih-Wei Liu, Jiahao Feng, Haoduo Zhao, Sheryl S. Moy, Kathryn M. Harper, Kun Lu
Summary: Glyphosate, an active ingredient in agricultural herbicides, can inhibit the biosynthesis of aromatic amino acids in plants, and its effect on the gut microbiota may have neurological outcomes. In a study on mice, it was found that there were little changes in neurobehavior under glyphosate exposure, but significant differences in fecal metabolomic profiles. Aromatic amino acids were reduced in the feces, indicating dysregulation in tryptophan metabolism. However, there was little evidence to support the impairment of the gut-brain axis.
ARCHIVES OF TOXICOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Yiyue Yang, Ming Yang, Tong Zhao, Lingyi Pan, Li Jia, Lufei Zheng
Summary: This study describes the variation in residue behavior of fluopyram in soil, carrot root, and carrot leaf samples after the application of fluopyram. The results show that the residue levels in edible parts were higher than the maximum residue limit in China when fluopyram was applied by root irrigation, while most of the fluopyram dissipated from the surface of carrot leaves when applied by foliar spray.
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
Agriculture, Multidisciplinary
Luke H. Merritt, Ashli E. Brown-Johnson, Ashley N. Meredith, J. Connor Ferguson
Summary: The study showed that the auxin applied second method performed better in terms of control ratings and biomass weights when treating herbicides.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Food Science & Technology
Hyun-Ho Noh, Seung-Hyeon Jo, Hyeon-Woo Shin, Dong-Ju Kim, Young-Jin Ham, Jun-Young Kim, Dan-Bi Kim, Hye-Young Kwon, Kee-Sung Kyung
Summary: This study investigates the dissipation of residual pesticides in persimmons and their processing products, finding that the residual concentration decreases significantly over time and remains stable during processing. Certain pesticides can be effectively removed through processing methods, providing important data for ensuring the safety of residual pesticides in processed products in the future.
Article
Chemistry, Applied
Kuan Wang, Bin Jiao, Haixiang Gao, Xinglu Pan, Xiaohu Wu, Jun Xu, Fengshou Dong, Yongquan Zheng
Summary: Glyphosate and glufosinate-ammonium are used to control persistent weeds in herbicide-resistant maize and soybean fields. The residue levels of these herbicides in Chinese maize and soybean samples are low and not expected to pose serious health risks to Chinese consumers.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Biochemical Research Methods
Lorena Manzano-Sanchez, Suganthi Angappan, Jose Antonio Martinez, Ana Aguilera, Amadeo Rodriguez Fernandez-Alba
Summary: In this study, an automated micro solid-phase extraction (SPE) clean-up method was used for multi-residue analysis of pesticides in spice matrices. The method showed good recovery rates and stability, and demonstrated a 20% increase in output compared to manual clean-up.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Lorena Manzano-Sanchez, Suganthi Angappan, Jose Antonio Martinez, Ana del Real Aguilera, Amadeo Rodriguez Fernandez-Alba
Summary: In this study, an automated clean-up method was used to analyze pesticide residues in various spice matrices. By using sorbent materials suitable for multiple co-extractives and an automated clean-up process, the analysis efficiency and stability were effectively improved. The results of this study demonstrate that this method can provide accurate pesticide residue results in a short amount of time.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Marcin Gruba, Emilia Jozwik, Mariusz Chmiel, Katarzyna Tyskiewicz, Marcin Konkol, Anna Watros, Krystyna Skalicka-Wozniak, Grzegorz Wozniakowski
Summary: A multi-residue determination method for pesticide residues in dried hops was developed, employing acetate buffered QuEChERS method and dSPE sorbents. The study revealed that mixtures containing Z-Sep+ sorbent provided the best clean-up results. LC-MS/MS analysis was used for quantification, and the method was validated according to SANTE/11813/2017 guidelines. The validated method was successfully applied to the analysis of 15 real dried hop samples, providing data on detected residues.
Article
Environmental Sciences
Nayara Luiz Pires, Esmeralda Pereira de Araujo, Eduardo Cyrino Oliveira-Filho, Eloisa Dutra Caldas
Summary: A sensitive method for the analysis of glyphosate, AMPA, and glufosinate in water was developed using liquid chromatography/tandem mass spectrometry. The results showed that glyphosate and AMPA were frequently detected in groundwater and surface water, but their concentrations were below the maximum levels allowed by Brazilian legislation and below the most critical toxicological endpoints for aquatic organisms. However, continuous monitoring is necessary due to the widespread use of glyphosate worldwide.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Applied
Tarik Balkan, Ozlem Yilmaz
Summary: In this study, the QuEChERS method was optimized and validated for the determination of 260 pesticides using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The method showed suitable linearity, low limits of detection and quantification, and was used to detect pesticide residue levels in leafy vegetables.
Article
Agronomy
Swati Walia, Tirthankar Banerjee, Rakesh Kumar
Summary: The study indicates that a reduced dose of imazethapyr combined with hand-weeding can significantly reduce the number and dry matter of wild marigold, while increasing biomass yield, making it a more sustainable weed control method.
Review
Environmental Sciences
Juan P. Munoz, Eduardo Silva-Pavez, Diego Carrillo-Beltran, Gloria M. Calaf
Summary: This study aimed to review glyphosate occurrence and exposure since 2015, considering studies associated with environmental or occupational exposure and the epidemiological assessment of cancer risk. The results showed that herbicide residues were detectable in all spheres of the earth and studies on the population showed an increase in glyphosate concentration in biofluids. However, the reviewed epidemiological studies provided limited evidence for the carcinogenicity of glyphosate, which was consistent with the International Agency for Research on Cancer classification as a probable carcinogen.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Tauseef, Nazia Rafique, Ijaz Ahmad, Muhammad Ishtiaq, Abdul Samad, Sonia Saba, Karam Ahad, Farrakh Mehboob
Summary: The validated method without cleanup step is suitable for simultaneous determination of multiclass pesticide residues in rice, with good accuracy and precision for a wide range of selected pesticides. The method quantification limits were below Codex and EU maximum residue limits, meeting the method validation guidelines. It demonstrated suitability for routine analysis, with interday repeatability and expanded uncertainty within acceptable ranges. Results showed contamination in 62% of the samples analyzed, with pesticide concentrations within the detected range.