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 app...

This report gives basic practical information on the determination of (i) vinyl chloride and (ii) benzene in workplace atmospheres. Consideration has been given to sampling by charcoal tubes and by means of a glass syringe. The respective literature of the analytical procedure — the gas chromatographic method — is referred to. Determination by direct reading detector tubes has also been include...

Graphite furnace techniques are characterized by excellent analytical sensitivity and are the methods of choice for the determination of trace elements in various environmental, biological, and clinical samples. However, they can be plagued by matrix interferences which complicate methods development and sample analysis. This is particularly true for the determination of volatile elements in co...