2016
DOI: 10.1590/s1984-82502016000200006
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Simultaneous determination of amoxicillin and clavulanic acid in pharmaceutical preparations by capillary zone electrophoresis

Abstract: Clavulanic acid enhances the antibacterial spectrum of amoxicillin by rendering most β-lactamase producing isolates susceptible to the drug. A fast, simple and efficient capillary electrophoresis method was developed for the simultaneous determination of amoxicillin and clavulanic acid from complex mixtures. Using a 25 mM sodium tetraborate as background electrolyte at a pH of 9.30, + 25 kV applied voltage, 25 °C system temperature, UV determination at 230 nm; we succeeded in simultaneous separation of amoxici… Show more

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Cited by 15 publications
(11 citation statements)
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References 10 publications
(9 reference statements)
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“…Few analytical methods have been reported for the determination of AMX, such as spectrophotometry , surface plasmon resonance (SPR) , chromatography , capillary electrophoresis , and liquid chromatography coupled with mass spectrometry . Electrochemical methods were also developed for that purpose.…”
Section: Introductionmentioning
confidence: 99%
“…Few analytical methods have been reported for the determination of AMX, such as spectrophotometry , surface plasmon resonance (SPR) , chromatography , capillary electrophoresis , and liquid chromatography coupled with mass spectrometry . Electrochemical methods were also developed for that purpose.…”
Section: Introductionmentioning
confidence: 99%
“…Cefalexina e amoxicilina, o primeiro e o segundo mais prescritos, são beta-latâmicos inibidores da parede celular bacteriana, sendo o primeiro pertencente ao grupo das cefalosporinas semissintéticas de primeira geração e o segundo ao grupo das penicilinas semissintéticas (17,18). A amoxicilina, geralmente, é prescrita em associação a um inibidor da beta-lactamase, como sulbactam ou ácido clavulânico (18).…”
Section: Resultsunclassified
“…A amoxicilina, geralmente, é prescrita em associação a um inibidor da beta-lactamase, como sulbactam ou ácido clavulânico (18). Essa última associação foi identificada neste estudo.…”
Section: Resultsunclassified
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“…Several analytical techniques have been applied for AMX and CLA determination in pharmaceutical and biological Abbreviations: AMX, amoxicillin; C 4 samples, such as HPLC [3][4][5][6], TLC with densitometric detection [7], UHPLC-MS/MS [8], CE with UV detection [9,10], MS [11], spectrophotometry [12,13], chemiluminescence [14], attenuated total reflectance with FTIR spectroscopy [15], sequential injection analysis [16][17][18], FIA [19], and stopped-flow techniques [20,21]. Most of the reported methods generally require expensive instrumentation and are time-consuming, which is undesirable in quality control activities.…”
Section: Introductionmentioning
confidence: 99%