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....

tidepressants, a group of drugs widely used for treating depressive diseases. Its chemical structure is shown in Fig. 1. Most existing methods for the determination of nortriptyline in bulk, pharmaceutical formulations and biological samples have been reviewed. Among other methods described for the assay of this drug are direct UV-spectrophotometry, derivatives spectrophotometry, fluorimetry an...

Aims: An important aspect of the valorization plants interest is search for phytoactives. This work aims to show effect extractive processes (maceration, decoction, Soxhlet extraction) both on phytoconstituents a plant species and their intrinsic properties.
 Methodology: Alchornea cordifolia, botanical growing in Côte d'Ivoire, was chosen this purpose. Phytophenols, flavonoids condensed t...

The seasonal variation of water soluble extractive alcohol soluble extractive and ether soluble extractive have been investigated in leaves, wood and bark of Sesbania grandiflora, Sesbania bispinosa and Sesbania cannabina. Comparative account of water soluble extractive of leaves, wood and bark of Sesbania grandiflora was showed high level (range 4.2 to 5.8 %) than Sesbania bispinosa (range 3.3...

There is mixed evidence regarding the relationship between the extractive intensity of economic activity and the level of human development. Some studies find that mineraland energy-intensive economies have higher levels of development than economies without a substantial extractive sector, whereas others find that they have lower development levels. Those that find the negative relationship co...

We present a novel Web Pages Summarizer ContextSummarizer that subgroups the given Web pages into ‘sense-clusters’ respecting a user’s topic interests, and constructs a dynamic extractive summary for each sense-cluster. A user’s topic interest is described by the user who selects and refines some of word senses disambiguated within the content contexts of the given Web pages. The semantic simil...