Add time:09/28/2019 Source:infona.pl
A flow-injection chemiluminescence method for the determination of tobramycin, micro-nomicin, amikacin and gentamycin has been described. The method utilises chemilumines-cence of the above analytes emitted during their oxidation with N-bromosuccinimide (NBS) in alkaline medium in the presence of fluorescein. The obtained detection limits (3 Sigma) are 0.07 ug mL(-1): for tobramycin and 0.08 ug ml/1 for micronomicin, amikacin and gentamycin. The evaluated method is recommended for automated and continuous analysis- In the automated mode the samples can be analysed at the rate of 100 per h with RSD of about 2.0% for the determination of 5 ug mL (-1) of each aminoglycoside antibiotic (n= 11). The proposed method has been successfully used for the analysis of commercial pharmaceutical formulations without any sample pretreatment.
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