Results 51 to 60 of about 118,277 (182)
Pesticide Application Safety Gear
, 2021 Preparing to load a tow-behind pesticide sprayer.
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Confirmation of Pesticide Residue Identity. VIII. Organophosphorus Pesticides
Journal of AOAC INTERNATIONAL, 1974 Abstract A chemical confirmation for 5 organophosphorus pesticides is described. After extraction and quantitation by flame photometric detector gas-liquid chromatography (CLC), the organophosphorus pesticides are hydrolyzed in a 10% methanolic-potassium hydroxide solution, followed by derivatization with pentafluorobenzyl bromide to ...
J A, Coburn, A S, Chau
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Analytical Science Advances, Volume 7, Issue 2, December 2026.ABSTRACT A dispersive micro solid‐phase extraction method was introduced using a Schiff base‐UiO66 nanocomposite as the adsorbent in the extraction of multi‐class pesticide residues in pear, cherry, grape, and apricot juices. The extraction procedure was hyphenated with a liquid‐phase microextraction procedure, providing a high preconcentration factor ...
Behnam Hosseininezhad +5 more
wiley +1 more source
Photodegradation of organophosphorus pesticides in honey medium
Ecotoxicology and Environmental Safety, 2014 Honey can be polluted due to environmental pollution and misuse of beekeeping practices. In the present study, photodegradation experiments of organophosphorus pesticides (coumaphos, methyl parathion and fenitrothion) in honey medium were conducted using Atlas Suntest simulator CPS+ as a sunlight producer.
Zhimin, Yuan +4 more
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Analysis &Sensing, Volume 6, Issue 6, November 2026.Identifying unknown chemicals in mixtures is limited by the reference libraries available. D‐SIIM instead cross‐validates experimental IR, Raman, and NMR spectra against DFT predictions, resolving all components of pesticide mixtures containing up to four multiring organophosphorus and triazine compounds including one for which GC–MS screening proved ...
Hye Jin Jeong +6 more
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Avaliação dos efeitos tóxicos induzidos por malation e malaoxon e a possível proteção por oximas [PDF]
, 2013 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Bioquímica, Florianópolis, 2013O malation é um composto tóxico pertencente à classe dos pesticidas organofosforados (OF) que tem como ...
Santos, Alessandra Antunes dos
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Recent Applications of Propylene Carbonate as a Solvent in Sustainable Organic Synthesis
ChemSusChem, Volume 19, Issue 17, 14 September 2026.This review evaluates propylene carbonate (PC) as a non‐toxic green solvent in organic synthesis, highlighting its performance in key reactions including cross‐couplings, asymmetric hydrogenations, peptide synthesis and biocatalysis. Across these processes, PC delivers yields comparable to conventional and alternative green solvents.
Laura G. Aguilar‐Sanchez +1 more
wiley +1 more source
Desenvolvimento de métodos de extração e purificação para a determinação de pesticidas organofosforados em tomate por cromatografia / [PDF]
, 1998 Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e ...
Kaipper, Beatriz Inês Almeida
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