Development of a focused ultrasound-assisted extraction method for the determination of trace concentrations of Cr and Mn in pharmaceutical formulations by ETAAS

[Display omitted] ► This work proposes the focused ultrasound assisted extraction of Cr and Mn from tablets for their determination by ETAAS. ► The total extraction of the analytes was achieved by sonicating 25–150mg of the sample with 5ml of a 1moll−1 HCl solution. ► The sonication time had importa...

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Veröffentlicht in:	Journal of pharmaceutical and biomedical analysis 2013-02, Vol.74, p.284-290
Hauptverfasser:	de Paula, Carlos Eduardo R., Caldas, Luiz Fernando S., Brum, Daniel M., Cassella, Ricardo J.
Format:	Artikel
Sprache:	eng
Schlagworte:	atomic absorption spectrometry atomization azithromycin cephalexin Chemistry, Pharmaceutical chromium Chromium - analysis Chromium - chemistry ciprofloxacin digestion drug formulations ETAAS Focused ultrasound assisted extraction hydrochloric acid manganese Manganese - analysis Manganese - chemistry Metals methionine Pharmaceutical formulations pyrolysis Sonication - methods Spectrophotometry, Atomic - methods t-test ultrasonics
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