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Phenylmercuric Acetate
About: Phenylmercuric Acetate is a research topic. Over the lifetime, 163 publications have been published within this topic receiving 3167 citations.
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TL;DR: In this paper, a simple colorimetric method of determining urea in soils is described, where the soil sample is extracted with 2M KCl containing a urease inhibitor (phenylmercuric acetate), and the extract is analyzed for urea by measurement of the red color formed when an aliquot is heated with diacetyl monoxime and thiosemicarbazide under acidic conditions (phosphoric acid-sulfuric acid medium).
Abstract: A simple colorimetric method of determining urea in soils is described. The soil sample is extracted with 2M KCl containing a urease inhibitor (phenylmercuric acetate), and the extract is analyzed for urea by measurement of the red color formed when an aliquot is heated with diacetyl monoxime and thiosemicarbazide under acidic conditions (phosphoric acid-sulfuric acid medium). The method is sensitive and precise, and it gives quantitative recovery of urea added to soils. The extraction performed is satisfactory for determination of exchangeable ammonium, nitrite, and nitrate by steam distillation methods. Additional
258 citations
TL;DR: Two separate enzymes, which determine resistance to inorganic mercury and organomercurials, have been purified from the plasmid-bearing Escherichia coli strain J53-1(R831), suggesting that the native enzyme is composed of three identical subunits.
195 citations
TL;DR: THE AUTHORS have screened a large number of R plasmid-bearing Escherichia coli and obtained a few that confer resistance to the organomercurials phenylmercuric acetate (PMA) and methylmerCuric chloride (MMA), which are of interest to see if the mercury(ial) resistance of the bacteria in the alimentary canal influences the fate of ingested mercury(ials).
Abstract: WE have screened a large number of R plasmid-bearing Escherichia coli and obtained a few that confer resistance to the organomercurials phenylmercuric acetate (PMA) and methylmercuric chloride (MMA). Resistance to cationic Hg(II) in E. coli, Staphylococcus aureus and Pseudomonas aeruginosa has invariably been associated with plasmids that also mediate resistance to various antibiotics (R plasmids)1–6. The mechanism of mercury resistance, is the enzymatic reduction of Hg(II) to Hg(0), which is volatile2,7,8. Previously, no organomercurial-reducing E. coli strains have been reported. The only organomercurial-reducing strain studied in detail is a PMA-resistant soil pseu-domonad7–9. As organomercurials including PMA are a human health problem10, it will be of interest to see if the mercury(ial) resistance of the bacteria in our alimentary canal influences the fate of ingested mercury(ials).
175 citations
TL;DR: Inhibition of SARS‐CoV 3CL protease was achieved using the mercury‐containing compounds thimerosal and phenylmercuric acetate, as well as hexachlorophene, and detailed mechanism studies demonstrated that the three compounds acted as competitive inhibitors.
98 citations
TL;DR: Potentially hazardous exposure to mercury had occurred among persons whose homes were painted with a brand of paint containing mercury at concentrations approximately 2 1/2 times the Environmental Protection Agency's recommended limit.
Abstract: Background. Many paint companies have used phenylmercuric acetate as a preservative to prolong the shelf life of interior latex paint. In August 1989, acrodynia, a form of mercury poisoning, occurred in a child exposed to paint fumes in a home recently painted with a brand containing 4.7 mmol of mercury per liter (at that time the Environmental Protection Agency's recommended limit was 1.5 mmol or less per liter). Methods. To determine whether the recent use of that brand of paint containing phenylmercuric acetate was associated with elevated indoor-air and urinary mercury concentrations, we studied 74 "exposed" persons living in 19 homes recently painted with the brand and 28 "unexposed" persons living in 10 homes not recently painted with paint containing mercury. Results. The paint samples from the homes of exposed persons contained a median of 3.8 mmol of mercury per liter, and air samples from the homes had a median mercury content of 10.0 nmol per cubic meter (range, <0.5 to 49.9). No mercu...
91 citations