Results 51 to 60 of about 4,415 (184)

Analytical Approaches to Address Challenges in the Analysis of Cannabinoids in Vascular Matrices Using Mass Spectrometry

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Phytocannabinoids are bioactive metabolites derived from the Cannabis sativa plant. They have garnered attention due to their recreational uses and therapeutic potential. Although various analytical strategies have been employed for their analysis, mass spectrometry (MS) coupled to chromatographic separation is superior due to its sensitivity ...
Radwa Mahmoud, Robert B. Laprairie, Anas El‐Aneed   +2 more
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Multistressor Interaction of Perfluorooctane Sulfonate (PFOS) and Temperature in Two Estuarine Fish Species, Red Drum (Sciaenops ocellatus) and Sheepshead Minnow (Cyprinodon variegatus)

Environmental Toxicology, EarlyView.
ABSTRACT Perfluorooctane sulfonate (PFOS), a perfluoroalkyl substance (PFAS), is characterized by a long, fluorinated carbon chain which makes it ideal for oil‐ and water‐repellent products but detrimental for the environment, where it persists and accumulates in organisms.
Anna L. Thornton, Katy W. Chung, Peter B. Key, Emily C. Pisarski, Philip Tanabe, Marie E. DeLorenzo   +5 more
wiley   +1 more source

Revised paper: Neonicotinoids as a potential threat to honey: Development of liquid chromatography methods for their determination [PDF]

Journal on Processing and Energy in Agriculture, 2017
There is an increasing interest on neonicotinoid residues determination in honey samples because they are banned by European Union. Their determination is based on liquid chromatography analytical methods and, therefore, the aim of this study was to ...
Jovanov Pavle, Sakač Marijana, Šarić Bojana, Milovanović Ivan, Jambrec Dubravka, Šarić Ljubiša, Kos Jovana   +6 more
doaj   +1 more source

SlGRF1 mediates gibberellin signaling to control cut‐budding in tomato

Journal of Integrative Plant Biology, EarlyView.
Upon wounding, cytokinin increases to initiate callus formation. Gibberellin enhances this, but later blocks bud formation by suppressing SlGRF1. Wounding‐induced protein SlGRF1 triggers buds via NAM1, EPF4, and ER2. Hormonal shifts control cut‐budding phases.
Yaping Xu, Yinhuan Xie, Huimin Jia, Qianqian Li, Xinqin Liu, Ting Ma, Zhaobo Lang, Qingfeng Niu   +7 more
wiley   +1 more source

Determination of avermectins: A QuEChERS approach to the analysis of food samples

Food Chemistry, 2015
We present a simple method for extracting avermectines from meat, based on a QuEChERS approach followed by liquid chromatography (LC) coupled to triple quadrupole (QqQ) tandem mass spectrometry (MS/MS). The compounds considered are ivermectin, abamectin, emamectin, eprinomectin, doramectin and moxidectin.
Rubies, A, Antkowiak, S, Granados, M, Companyo, R, Centrich, F   +4 more
openaire   +3 more sources

Determination of 30 Kinds of Antiparasitic Drugs in Animal-derived Foods by QuEChERS-UPLC-MS/MS

Shipin gongye ke-ji
Objective: A method for determining the residues of 30 antiparasitic drugs in animal-derived food using ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was established.
Lifeng FENG, Qian HUANG, Mengwei YE, Yonghui HUANG, Yan HUANG, Haoxue LIN, Min LIANG, Hui XU   +7 more
doaj   +1 more source

Validation of Pesticides Multi-Residual Testing Method on Nutmeg by Using UPLC-MS/MS

Walisongo Journal of Chemistry, 2021
The use of pesticides in nutmeg still leaves an accumulation of pesticide residues that can endanger human health and damage the ecological balance. In addition, nutmeg with high pesticide residue content will be rejected by nutmeg export destination ...
Bayu Refindra Fitriadi
doaj   +1 more source

Oxidative stress in honey bees (Apis mellifera) and small carpenter bees (Ceratina calcarata) across different landscapes

Physiological Entomology, EarlyView.
First comparative study in oxidative stress between wild bees and managed bees. Bees collected from organic landscapes exhibited the lowest OX levels. Pesticide profiles were different among landscapes. Abstract Oxidative stress (OX) is a state of imbalance between antioxidants and reactive oxygen species, which are the byproducts of oxidative ...
Keiana Briscoe, Mia Byarlay, Rameshwor Pudasaini, Reed Johnson, Sandra Rehan, Hongmei Li‐Byarlay   +5 more
wiley   +1 more source

A QuEChERS Cyanin based Chromogenic Method for the Sensitive Identification of MRSA from Various Food Sources and its Molecular Characterization

Journal of Pure and Applied Microbiology
Methicillin resistant Staphylococcus aureus harbouring other virulence factors in food is a serious threat to food safety. Delayed detection of MRSA may lead to fatal consequences due to the challenging treatment methods.
Mariya Tomy, Shylaja Ramlal, M.M. Parida, Joseph Kingston   +3 more
doaj   +1 more source