Groundwater is one of the most useful water sources. Contamination of such water source is a big problem creating health hazards. In this present study we have collected groundwater samples from different places of Bhiloda taluka of Sabarkantha district (North Gujarat) India. These samples have been assessed on the basis of various qualitative parameters. The results of physico-chemical study of water samples from 13 bore wells in Bhiloda taluka are presented. The water quality parameters such as; pH, electrical conductivity (EC), total dissolved salts (TDS), calcium and magnesium, sodium, potassium, carbonate, bicarbonate, chloride, sulphate, fluoride, sodium adsorption ratio (SAR), residual sodium carbonate (RSC) and soluble sodium percentage ( SSP ) were estimated.
The photocatalytic degradation of 2,4-dinitrophenol over ZnO was carried out in the presence of light. Control experiments were carried out. The photocatalytic degradation of 2,4-dinitrophenol was observed spectro-photmerically. The various parameters like concentrations of substrate, pH, amounts and band gaps of semiconductor, impact of light intensity, sensitizers and radical quenchers affected the kinetics of the degradation process. A probable mechanism for this process has been proposed.
Schiff base derivatives ofN-{(1E)-[3-(mono or di-substituted aryl)-1-phenyl-1H-pyrazol-4-yl]methylene{-4-methylpyridin-2-amine were synthesized by the acid catalyzed condensation of 3-(mono- or di- substituted aryl)-1-phenyl-1H-pyrazole-4-carbaldehyde derivatives with 4-methylpyridin-2-amine. Schiff base derivatives were characterized by FT-IR,1H-NMR, Mass spectral analysis and elemental analysis. All the synthesized compounds have been screened for their antimicrobial activities by using broth dilution method.
A series of novel 7-alkyl/aryl sulfonyl-4-pyrrol-1-yl-5,6,7,8-tetrahydro-pyrido[4 0 ,3 0 :4,5]thieno[2,3-d] pyrimidine 6 were synthesized for evaluation of their antibacterial and antifungal activity. The structures were determined by IR, NMR, mass spectroscopy, and elemental analysis. They were screened for activities against bacterial and fungal strains.
8-Hydroxy quinoline was synthesized using Skraup reaction. This was condensed with trichloro-s-triazine. The product of the above reaction was allowed to react with triazole derivative. Finally, urea derivatives were allowed to react and the products were characterized by conventional and instrumental methods. Their structures were determined and important biochemical properties were studied
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