Results 81 to 90 of about 32,100 (229)

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Carbon Dioxide, a Solvent and Synthon for Green Chemistry [PDF]

, 2005
Carbon dioxide is a renewable resource of carbon when we consider the reuse of existing CO2 as a carbon source for producing chemicals. The development of new applications is of major interest from the point of view of carbon dioxide sequestration and ...
Ballivet-Tkatchenko, D, Camy, Séverine, Condoret, Jean-Stéphane   +2 more
core   +1 more source

Differentiation of ring‐substituted regioisomers of cathinone analogs by supercritical fluid chromatography

Analytical Science Advances, 2020
Various new psychoactive substances, such as cathinone and its analogs, possess similar chemical structures. Accurate identification of structurally similar drugs of abuse is important in forensic drug analysis.
Hiroki Segawa, Kosuke Kusakabe, Ayumu Ishii, Noriyuki Kato, Yuko T. Iwata, Tadashi Yamamuro, Kenji Kuwayama, Kenji Tsujikawa, Tatsuyuki Kanamori   +8 more
doaj   +1 more source

A New Kinetic‐Mechanistic Approach Towards Spectrophotometric Bioanalysis of 2‐Phenylethylamine as a Sympathomimetic Agent Using Sodium Isopropyl Xanthate

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT 2‐Phenylethylamine (2‐PEA), an aromatic biogenic amine, demonstrates significant physiological and toxicological effects on human health. A variety of conventional methods have been widely used for the determination of 2‐PEA. However, the necessity of complex sample preparation and high cost of instrumentation may pose challenges to their ...
Fatemeh Nami, Houman Kholafazad, Mohammad Hasanzadeh, Nasrin Shadjou   +3 more
wiley   +1 more source

Purification of supercritical-fluid carotenoid-rich extracts by hydrophobic interaction chromatography [PDF]

, 2018
Supercritical fluid extraction (SFE) has been widely used for extracting several valuable phytochemicals, including carotenoids. However, there is a scarcity of works dealing with the purification of SFE extracts.
Abate-Pella, Azmir, Banafsheh, Biehler, Bradford, Brauch, Comim, Dai, de A. Lima, de A. Lima, de Moura, Dutta, Döker, Fiedor, Flickinger, Foo, Ghafoor, Gritti, Gupta, Gómez-Loredo, Jaswir, Jonker, Kassama, Krupa, Langmuir, Lauretani, Liu, Madhujith, Mitra, Moure, Ndhlala, Prado, Qiu, Rodriguez-Amaya, Rodriguez-Amaya, Ruthven, Stahl, Sugiura, Weisz, Şanal   +39 more
core   +1 more source

Foodborne Carcinogens: Formation Pathways, Health Risks, and Cutting‐Edge Physical and Chemical Prevention Strategies

eFood, Volume 7, Issue 3, June 2026.
This review highlights the formation of foodborne carcinogens during processing and evaluates different mitigation strategies, including natural antioxidants and modern cooking techniques, to reduce associated cancer risks and enhance food safety. ABSTRACT Food processing methods, though vital for improving food safety, taste, and shelf life, can ...
Naglaa S. Ashmawy, Ahmed A. Zaky, Noha H. Badr, Ali Korin, Mohamed A. Farag   +4 more
wiley   +1 more source

Comparative study of green sub- and supercritical processes to obtain carnosic acid and carnosol-enriched rosemary extracts with in vitro anti-proliferative sctivity on colon cancer cells [PDF]

, 2017
In the present work, four green processes have been compared to evaluate their potential to obtain rosemary extracts with in vitro anti-proliferative activity against two colon cancer cell lines (HT-29 and HCT116).
Cifuentes, Alejandro, García-Cañas, Virginia, Herrero, Miguel, Ibáñez, Elena, Sánchez-Camargo, A. P.   +4 more
core   +1 more source

Gas Chromatography‐Based Methods for Profiling Volatile Off‐Aroma Compounds in Grain Legumes: A Review

Legume Science, Volume 8, Issue 2, June 2026.
ABSTRACT Instrumental characterisation of the volatile organic compounds (VOCs), responsible for off‐aroma, is mainly centred on gas chromatography‐based techniques. Despite previous reviews that have addressed the chemical compounds and biosynthetic pathways of off‐aroma generation, to date, there is a lack of a comprehensive review that critically ...
Piyumi Chathurangi Wanniarachchi, K. G. Upul Kumarasinghe, Mauro Mocerino, Ranil Coorey   +3 more
wiley   +1 more source

Electrodeposition from supercritical fluids

, 2014
Recent studies have shown that it is possible to electrodeposit a range of materials, such as Cu, Ag and Ge, from various supercritical fluids, including hydrofluorocarbons and mixtures of CO2 with suitable co-solvents. In this perspective we discuss the
Bartlett, P., Cook, D.A., George, M.W., Hector, A., Ke, J., Levason, W., Reid, G., Smith, D.C., Zhang, W.   +8 more
core   +1 more source

Impacts of Extraction Methods in the Rapid Determination of Atrazine Residues in Foods using Supercritical Fluid Chromatography and Enzyme-Linked Immunosorbent Assay: Microwave Solvent vs. Supercritical Fluid Extractions

The Scientific World Journal, 2005
It is an accepted fact that many food products that we eat today have the possibility of being contaminated by various chemicals used from planting to processing.
Mohamed H. El-Saeid, Ijeoma Kanu, Ebere C. Anyanwu, Mahmoud A. Saleh   +3 more
doaj   +1 more source