Extractive Spectrophotometric Determination of Cobalt(II) in Synthetic and Pharmaceutical Samples Using Cyanex 923

Extractive Spectrophotometric Determination of Mirtazapine in Pure and Pharmaceutical Forms

Four simple and sensitive extractive spectrophotometric methods have been described for the assay of Mirtazapine either in pure form or in pharmaceutical formulations. The developed methods involve formation of coloured chloroform extractable ion-pair complexes of the drug with bromocresol green (BCG), bromophenol blue (BPB), bromothymol blue (BTB) and bromocresol purple (BCP) in acidic medium....

Spectrophotometric Determination of Cephalosporins in Pharmaceutical Samples

Extractive spectrophotometric determination of levetiracetam in pharmaceutical formulations

Three simple, economical, precise, reliable and reproducible visible spectrophotometric methods (A, B and C) have been developed for the estimation of Levetiracetam in bulk as well as in Tablet formulation. The developed methods A, B and C are based on the formation of chloroform extractable complex of Levetiracetam with Bromocresol green (method A), Bromophenol blue (method B) and Bromothymol ...

Extractive Spectrophotometric Determination of Miconazole Nitrate in Pure and Pharmaceutical Preparation

A simple extractive spectrophotometric method has been developed for the estimation of miconazole nitratein both pure and pharmaceutical preparation. The method is based on the formation of ion-pair complex of thedrug with acidic dye bromothymol blue (BTB) in acidic condition, followed by its extraction in organic solvent(chloroform). The absorbance was measured against the corresponding blank....

A rapid and sensitive extractive spectrophotometric determination of copper(II) in pharmaceutical and environmental samples using benzildithiosemicarbazone.

Benzildithiosemicarbazone (BDTSC) is proposed as a sensitive and selective analytical reagent for the extractive spectrophotometric determination of copper(II). BDTSC reacts with copper(II) in the pH range 1.0-7.0 to form a yellowish complex. Beer's law is obeyed in the concentration range 0.5-0.4 microg cm(-3). The yellowish Cu(II)-BDTSC complex in chloroform shows a maximum absorbance at 380 ...