Results 291 to 300 of about 90,396 (328)

Chromatography of carbamates

Chromatographic Reviews, 1967
Abstract We have attempted to stress the major areas of chromatographic techniques for carbamate analyses and also to illustrate the influence of carbamate moiety substituents on chromatographic behavior. The remarkable versatility of chromatographic techniques, as demonstrated by their many applications to complex analyses, is apparent from the ...
Lawrence Fishbein, Walter L. Zielinski
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A method for the determination of methyl carbamate and ethyl carbamate in wines

Food Additives and Contaminants, 1992
A method is described for the simultaneous determination of methyl carbamate (MC) and ethyl carbamate (EC) in wines that is based on: (a) extraction of the sample with dichloromethane using an extraction tube or an alumina-Celite column, (b) concentration of the extract to a small volume, and (c) determination by gas-liquid chromatography-thermal ...
Nrisinha P. Sen, Stephen W. Seaman, Dorcas Weber   +2 more
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POISONING BY CARBAMATE PESTICIDES

Medical Journal of Australia, 1977
In recent years the number of carbamate pesticides registered for use in New South Wales has increased. Some of the newer carbamates are very toxic and have cholinergic properties similar to those of the organic phosphates, though the effect is of much shorter duration.
Bermingham S, Simpson Gr
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O-CARBAMATES

1986
Publisher Summary O-Carbamates represent a class of compounds distinct from N-carbamates. This chapter discusses carbamates with varying substituents on the oxygen atom. The industrial applications of carbamates such as those reported as a tranquilizer, a crease-resistant agent in the textile industry, a solvent, hair conditioners, a plasticizer, and ...
Stanley R. Sandler, Wolf Karo
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The Metabolism Of Pesticidal Carbamates

CRC Critical Reviews in Toxicology, 1971
(1971). The Metabolism Of Pesticidal Carbamates. CRC Critical Reviews in Toxicology: Vol. 1, No. 1, pp. 33-54.
A. J. Ryan, James B. Knaak
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The basis of the carbamate reaction

Archives of Biochemistry and Biophysics, 1955
Abstract Previously, it had been assumed that the carbamination of amino acids could be carried out only in strongly alkaline media (in the presence of alkaline-earth hydroxides). The carbamino carboxylic acids, however, are also formed at neutral and mildly acid reactions.
Marianne Kreidl, Carl Neuberg, Amelie Grauer   +2 more
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Organophosphate and Carbamate Poisoning

Emergency Medicine Clinics of North America, 2015
Organophosphates (OPs) and carbamates have a wide variety of applications, most commonly as pesticides used to eradicate agricultural pests or control populations of disease-carrying vectors. Some OP and carbamates have therapeutic indications such as physostigmine.
Andrew King, Cynthia K. Aaron
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Infrared Spectra of Ammonium Carbamate and Deuteroammonium Carbamate

The Journal of Chemical Physics, 1964
Infrared spectra of thin solid films formed by the condensation of gaseous mixtures of NH3 or ND3 and CO2 at low temperatures were obtained in the region from 4000 to 400 cm—1 at —25°, —78°, and —190°C. Two types of spectra were obtained, depending upon the temperature of formation of the solid.
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The interaction of carbamates with acetylcholinesterase

Biochemical Pharmacology, 1977
Abstract It has been shown that the kinetic schemes proposed by earlier workers to describe the reactions of carbamates with acetylcholinesterase are incomplete. A reaction scheme has been developed and tested by the use of methyl- and dimethyl-carbamoylcholines; it adequately explains the reactions observed in the carbamate-enzyme system, including ...
P. Watts, Rodney G. Wilkinson
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