Buscar
Mostrando ítems 1-10 de 268
One-pot biocatalyzed preparation of substituted amides as intermediates of pharmaceuticals
(Elsevier Science, 2001-01)
A lipase-catalyzed procedure is described for the one-pot conversion of carboxylic acids into substituted amides via in-situ formation of the ethyl ester and subsequent aminolysis. The procedure was optimized for the ...
PLS regression in the spectrophotometric data for the simultaneous determination of levodopa and carbidopa in pharmaceutical preparations by using an enzymatic stopped-flow FIA technique
(Taylor & Francis, 2007-01)
An enzymatic stopped-flow-injection analysis is proposed for simultaneous determination of levodopa and carbidopa in pharmaceutical preparations. The dopaquinones obtained after the oxidation catalized by the enzyme were ...
Direct determination of resorcinol in pharmaceuticals by using derivative spectrometry
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
Colombian Biodiversity, an Opportunity for the Strengthening of the Pharmaceutical and Cosmetic IndustriesLa biodiversidad colombiana, una oportunidad para el fortalecimiento de las Industrias farmacéutica y cosmética
(Universidad de Antioquia, Facultad de Ciencias Farmacéuticas y AlimentariasGrupo de Investigación en Sustancias Bioactivas (GISB)Toxinología Alternativas Terapéuticas y AlimentariasMedellín, Colombia, 2021)
Flow-batch analyzer for the chemiluminescence determination of catecholamines in pharmaceutical preparations
(Taylor & Francis, 2011-01)
A novel, simple, cheap, flexible, versatile, and highly sensitivity flow-batch analyzer (FBA) with chemiluminescence detection was developed for determination of dopamine, norepinephrine, and epinephrine in pharmaceutical ...
A fast fluorimetric flow injection method to determine ibuprofen
(Sociedade Brasileira de Química, 2006-12-10)
The native fluorescence of ibuprofen was enhanced when a host-guest complex of the analyte with b cyclodextrin (b-CD) was formed. So, based on this fact, a flow injection method to determine ibuprofen in different ...
Pharmacokinetic comparison of different flubendazole formulations in pigs: A further contribution to its development as a macrofilaricide molecule
(Elsevier Ltd, 2015-12)
Despite the well established ivermectin activity against microfilaria, the success of human filariasis control programmes requires the use of a macrofilaricide compound. Different in vivo trials suggest that flubendazole ...
Development and validation of a highly sensitive HPLC method for determination of paclitaxel in pharmaceutical dosage forms and biological samples
(Bentham Science Publishers, 2014-08)
A new simple and highly sensitive HPLC-UV method for the analysis of paclitaxel in Taxol® and Abraxane® has been developed which also allows the quantification in biological samples of pharmacokimnetic studies with a very ...
Analysis of penicillamine using Cu-modified graphene quantum dots synthesized from uric acid as single precursor
(Xi'an Jiaotong University, 2017-10)
A simple methodology was developed to quantify penicillamine (PA) in pharmaceutical samples, using the selective interaction of the drug with Cu-modified graphene quantum dots (Cu-GQDs). The proposed strategy combines the ...