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....

MODIFICATION OF CLAYS WITH IONIC LIQUIDS FOR POLYMER NANOCOMPOSITES by Neung Hyun Kim In attempts to prepare nanofillers with enhanced compatibility with a polymer matrix, cationic and anionic clays susceptible to exchange of their interlamellar ions with a variety of other cations or anions, were selected. In order to treat cationic clay, montmorillonite, which contains sodium ions as interlay...

In this study, lignin was isolated from rice (Oryza sativa L.) husk using alkaline extraction method and used as an adsorbent for aqueous solutions of methyl orange (MO) bromothymol blue (BTB). The equilibrium removal rate MO found to be at 61.4%, with experimental adsorbate uptake, qe, 1.23 mg·g-1, achieved 150 minutes contact time. For BTB, the 78.3%, qe 1.57 Pseudo-first order (PFO) pseudo-s...

In this study, a microwave/UV/TiO(2)/ozone/H(2)O(2) hybrid process system, in which various techniques that have been used for water treatment are combined, is evaluated to develop an advanced technology to treat non-biodegradable water pollutants efficiently. In particular, the objective of this study is to develop a novel advanced oxidation process that overcomes the limitations of existing s...

Penyakit Layu Bakteri merupakan penyakit tular tanah yang menyerang tanaman hortikultura disebabkan oleh bakteri fitopatogen Ralstonia solanacearum . Komunitas menghuni rizosfer diketahui memiliki potensi baik dalam mendukung pertumbuhan maupun melindungi dari serangan patogen. pembentuk endospora dipilih karena toleransi cukup bagus apabila dihadapkan dengan lingkungan tidak cocok bagi pertumb...