Browsing by Author "Squella Serrano, Juan"
Now showing items 1-20 of 27
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(1988)The apparent permeation rate constants and amount of ranitidine transferred in 1 h were measured through everted rat intestine using a perfusion apparatus. The effects of pH and 5% or 10% ethanol on the apparent permeation ...
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(1996)The electrochemical oxidation of acyclovir at different pH and concentrations using both differential pulse and cyclic voltammetry was studied. Acyclovir exhibits one differential pulse voltammetric peak at the glassy ...
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(1981)The hydrolysis of flucloxacillin at pH 4.9 yields a degradation product which is polarographically oxidizable. This derivative has not been identified, but would seem to contain a thiol group. It gives a diffusion-controlled ...
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Cyclic voltammetric study of the nitro radical anion from nitrendipine generated electrochemically (1991)Electrochemical studies on nitrendipine using mixed aqueous/dimethylformamide (DMF) solvent have allowed us to generate the one-electron reduction product, the nitro radical anion, RNO.-2. The voltammetric technique has ...
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(1990)A new differential pulse polarographic method for the determination of buspirone pharmaceutical formulations is proposed. The method is based on the CN bond electroactivity of buspirone pirimidinic ring. Recovery study ...
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(1999)Lacidipine is an antihypertensive drug that is oxidizable at the glassy carbon electrode. The voltammetric oxidation of lacidipine in aqueous-alcoholic solutions (70 + 30) produces a well-defined voltammetric peak when ...
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(1983)The a.c polarographic method has been applied in the study of the glutathione-ampicillin interaction at pH 7.4 and 37°C. Ampicillin shifted the peak potentials of glutathione to less negative values. A linear relation was ...
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(Pergamon Press Ltd., 1993-03-23)Four amphetamine derivatives bearing a methylenedioxy group at positions 3 and 4 of the benzene ring and differing in their substitution at C(6) were studied by differential pulse voltammetry in aqueous media. These ...
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(1993)Four amphetamine derivatives bearing a methylenedioxy group at positions 3 and 4 of the benzene ring and differing in their substitution at C(6) were studied by differential pulse voltammetry in aqueous media. These ...
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(1992)Electrochemical reduction of nicergoline was studied at different pH and concentrations using differential pulse polarography and linear sweep voltammetry. Both techniques reveal that the reduction process occurs with ...
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(Elsevier , Science Ltd., 1991-11-26)A set of 2,5-dimethoxyamphetarnines differing in their substitution at C4 was studied by differential pulse voltammetry and linear scan cyclic voltammetry in aqueous media. These experiments showed a single oxydation ...
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(Elsevier Sequoia SA, 1999)The electrochemical reduction of a series of β-nitrostyrene and β-methyl-β-nitrostyrene derivatives by tast and differential pulse polarography and cyclic voltammetry over a wide pH range was studied. The reduction potentials ...
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(2010)The electrochemistry of 2,2-dimethyl-(3H)-3-(N-3'-nitrophenylamino) naphtho[1,2-b]furan-4,5-dione ([Q]-PhNO2), on mercury was investigated. The first peak is consistent with a quasi-reversible one-electron reduction of the ...
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(1983)The interaction of glutathione with cloxacillin was investigated by a new a.c. polarographic procedure. The theoretical treatment used to describe the interaction is strongly consistent with the experimental results. The ...
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(1991)A new differential pulse polarographic method is proposed for the determination of nicardipine, based on the electroactivity of the nitroaromatic group of the molecule. The proposed method is applied in the determination ...
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(1993)Voltammetric studies of nimodipine using a mixed aqueous dimethylformamide (DMF) solvent have allowed us to generate the one-electron reduction product, the nitro radical anion RNO2 .. The cyclic voltammetry technique has ...
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(VCH Publishers. Inc., 1994)The cyclic voltammetric characteristics of two nitroamphetamine derivatives (2-nitro-4,5dimethoxyamphetamine and 2-nitro-4,5-methylenedioxyamphetamine) have been investigated in different media. In mixed media (aqueous ...
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(1994)The cyclic voltammetric characteristics of two nitroamphetamine derivatives (2‐nitro‐4,5‐dimethoxyamphetamine and 2‐nitro‐4,5‐methylenedioxyamphetamine) have been investigated in different media. In mixed media (aqueous ...
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(1994)The photodecomposition of new 1,4‐dihydropyridine, furnidipine (CRE‐319); 2,6‐dimethyl‐4‐(2‐nitrophenyl)‐1,4‐dihydropy‐ridine‐3,5‐dicarboxylic acid 3‐tetrahydrofurfuryl (5‐methyl diester) was studied by voltammetric, UV‐vis ...
