Commercially grown cotton and potted cotton plants were sprayed with five pesticides, and simulated rain was applied 1–72 h later. Leaf samples were analysed to determine the effect of the rain on the original deposits. It was found that 2 to 5 mm of simulated rain applied 1 h after spraying, washed off 50% or more of the original deposit. An increase in rainfastness of the pesticides occurred over a period of time after spraying. The type of formulation seemed to affect rainfastness, but the origin of a formulation, the addition of wetting agents and the intensity of the simulated rain did not.
High‐pressure liquid chromatography with an ion‐exchange column combined with graphite furnace atomic absorption spectrometry was used to analyse commercial formulations of sodium hydrogen methylarsonate (MSMA). No arsenite or arsenate salts or dimethylarsinic acid were detected as contaminants in the formulations, and the MSMA concentrations were found to be in accordance with the concentrations given on the containers.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.