Results 311 to 320 of about 72,446 (353)
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Active transport of quaternary ammonium compounds into bile
American Journal of Physiology-Legacy Content, 1963The quaternary ammonium ion, procaine amide ethobromide (PAEB), administered intravenously (5 mg/kg) to rats with ligated renal pedicles, rapidly appears in the bile in high concentrations, both as free PAEB and as conjugated PAEB. During 1 hr after administration of the compound, the biliary concentrations of free as well as conjugated compound are ...
Lewis S. Schanker, Harvey M. Solomon
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Quaternary Ammonium Compounds as Mothproofing Agents
Journal of Economic Entomology, 1967Mothproofing studies were conducted with 8 cationic quaternary ammonium compounds applied to woolen doth in constant-temperature baths. In CSMA (Chemical Specialties Manufacturers Association) insect-feeding tests with larvae of the black carpet beetle, Attagenus piceus (Olivier), and the webbing clothes moth, Tineola bisselliella (Hummel), these ...
Joe H. Lang, Roy E. Bry, L. L. McDonald
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Tolerance of Bacteria for Quaternary Ammonium Compounds
Journal of Food Science, 1968SUMMARY– Escherichia coli and Pseudomonas fluorescens followed similar patterns of adaptation to tolerate quaternary ammonium compounds. E. coli approached a tolerance at 28 μg/ml in nutrient broth after 12 to 14 daily transfers. P. fluorescens adapted more rapidly in a similar medium, reaching a level of 120 μg/ml in 12 days.
R. B. Maxcy, P. R. Soprey
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Quaternary Ammonium Compounds as Molluscacides [PDF]
Science, 1954 I. Fonseca Ribeiro +2 more
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Inactivation of the Germicidal Action of Quaternary Ammonium Compounds*
Journal of the American Pharmaceutical Association (Scientific ed.), 1948Abstract The need for means of inactivating the anti‐bacterial activity of quaternary ammonium germicides is summarized. Anionic detergents and soaps fail to inactivate surface‐active cationic detergents. Suramin sodium is the most satisfactory inactivator of any in a group of sulfonates and sulfonic acids tested for this purpose.
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Quaternary Ammonium Compounds for Main Disinfection [PDF]
Journal AWWA, 1951 HOHERE seems to be considerable ■L doubt whether progress in newmain sterilization has kept pace with the betterment of the bacteriological standards for drinking water. At a recent school for water works operators at Iowa City, Iowa, the discussion brought out four methods in general use for this purpose in the state, and a count of those using each ...
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Virucidal efficacy of the newer quaternary ammonium compounds
Journal of the American Animal Hospital Association, 1995The virucidal activity of several disinfectants containing newer generation quaternary ammonium compounds (QACs) as their active ingredients was evaluated. Disinfectants were used at the manufacturers' recommended dilutions with isolates of feline herpesvirus, feline calicivirus, and canine parvovirus, and a contact time of 10 minutes at room ...
V S Mellon +3 more
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Sorption of quaternary ammonium compounds to municipal sludge
Water Research, 2010The sorptive behavior of four quaternary ammonium compounds (QACs) - hexadecyl trimethyl ammonium chloride (C(16)TMA), dodecyl trimethyl ammonium chloride (C(12)TMA), hexadecyl benzyl dimethyl ammonium chloride (C(16)BDMA), and dodecyl benzyl dimethyl ammonium chloride (C(12)BDMA) - to municipal primary, waste activated, mesophilic digested, and ...
Zainab Z. Ismail +2 more
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New Quaternary Ammonium Compounds with Adrenomimetic Action
Science, 1960Quaternary salts of two triesters of p -dimethylaminothiophenol and phosphoric acid or thiophosphoric acid have effects similar to epinephrine on blood pressure, heart rate, and the nictitating membrane of the anesthetized cat. Two analogous compounds derived from phenol are depressor.
R. A. Lehman, H. A. Jewell
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