Pharmaceutic Analysis by Polarography. III

Analysis of Pesticide Residues by Polarography

MediSign - Secure Pharmaceutic Distribution

Durch das MediSign Projekt soll gezeigt werden, wie man durch Einsatz von RFID-Technologie und digitaler Signaturen die Vertriebswege von Medikamenten sichern kann. MediSign kann dabei einen fälschungssicheren Transport der Ware vom Produzenten über beliebige Zwischenstufen bis hin zum Konsumenten garantieren. MediSign versteht sich als Dienstleister eines Services zur digitalen Absicherung, de...

Determination of citrate as its iron(III) complex by differential pulse polarography.

A method for determining citrate as its complex with iron(II1) by differential pulse polarography is described. The method is sensitive to 5 pg ml-1 of citrate, without any interference from equimolar propan-2-onedicarboxylate and propenetricarboxylate ions and 10% of oxalate and tartrate ions. The limits of error in citrate concentrations determined by the proposed method are better than &2.6y...

Polarography in Molten Salts

TYPES OF MELTS From the practical viewpoint, melts may be classified according to melting points which may limit the available techniques. The lowest melting, with working temperatures up to 250°, are typified by the LiNO3—NaNO3— KNO3 eutectic, NaNO3—KNO3 eutectic, LiClO4, and ammonium formate. With these solvents it is possible to use the dropping mercury electrode, or hanging mercury drop ele...

Preconcentration of bismuth(III) and copper(II) by solid-phase extraction and subsequent determination by differential pulse polarography.

A differential pulse polarographic method is proposed for the trace determination of bismuth and copper from large volumes of aqueous samples after adsorption of their 1-(2-thiazolylazo)-2-naphthol complexes onto microcrystalline naphthalene in the pH ranges of 7.2-9.0 and 4.0-7.8, respectively. Bismuth and copper are desorbed from microcrystalline naphthalene with 9 mL 1M HCl. Well-defined pea...