Results 121 to 130 of about 509 (160)

Mepiquat–acetochlor formulations: sorption and leaching

Applied Clay Science, 2001
Our aim was to study the adsorption of the plant regulator mepiquat to montmorillonite and test the suitability of montmorilonite–mepiquat complexes in formulations to reduce leaching of the non-polar herbicide, acetochlor. Adsorption of the monovalent organic cation mepiquat to montmorillonite through a range of ionic strengths was determined and ...
Baruch Rubin   +2 more
exaly   +2 more sources

An intercomparison study of the determination of glyphosate, chlormequat and mepiquat residues in wheat

open access: yesFood Additives and Contaminants, 2007
An intercomparison study of the determinations of glyphosate, chlormequat and mepiquat residues in cereals was performed. Four samples comprising one blank, two incurred and one spiked sample were sent to six participating laboratories. For glyphosate, two laboratories reported considerably lower results than the other four. One of the two laboratories
Kit Granby
exaly   +3 more sources

Mepiquat: A Process-Induced Byproduct in Roasted Cereal-Based Foodstuffs

Journal of Agricultural and Food Chemistry, 2016
Mepiquat, a growth regulator widely used in agriculture, is also known as a process-induced byproduct formed in coffee from natural constituents during heat treatments such as roasting. This study examines mepiquat formation in cereal-based foodstuffs treated at sufficiently high temperature to trigger methyl transfer reactions that involve glycine ...
Richard H Stadler   +2 more
exaly   +3 more sources

Dissipation and residue behavior of mepiquat on wheat and potato field application

Environmental Monitoring and Assessment, 2013
A modified LC-MS method for the analysis of mepiquat residue in wheat, potato, and soil was developed and validated. A hydrophilic interaction liquid chromatographic column has been successfully used to retain and separate the mepiquat. Mepiquat residue dynamics and final residues in supervised field trials at Good Agricultural Practice (GAP ...
Sufang Fan, Canping Pan, Xuesheng Li
exaly   +3 more sources

Carnitine, A New Precursor in the Formation of the Plant Growth Regulator Mepiquat

Journal of Agricultural and Food Chemistry, 2018
Carnitine is demonstrated as an effective methyl donor in the formation of the plant growth regulator N, N-dimethylpiperidinium (mepiquat), encompassing either N-methylation/decarboxylation of pipecolic acid, or Maillard pathways followed by transmethylation reactions.
Hong Zhuang, Yuan Yuan, Xuenan Li
exaly   +3 more sources

HPLC Determination of Mepiquat Chloride in Commercial Pesticide Formulations

Bulletin of Environmental Contamination and Toxicology, 2009
A simple, fast and precise High Performance Liquid Chromatographic method with diode array detector was developed and single laboratory validated for the determination of mepiquat chloride in soluble concentrate pesticide formulations. From the results obtained, the repeatability of the method expressed as relative standard deviation (%RSD) was found ...
H, Karasali, S, Ioannou
openaire   +2 more sources

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