Background: Water with high concentration of minerals is hard water. Water is essential for life. But water with very high degrees of hardness is harmful to health.: Four samples of packaged water samples were Material and Methods collected from kalyani area, West Bengal and tested by using EDTA titrimetric method with indicator and electrochemistry (non-indicator) principle.Out of all the samples tested majority of them Results and discussion: shows moderately hard character and single sample water as soft water character. Also from the experiment calcium and magnesium content has been determined.These studies Concludes that there is a differences in Conclusion: between all the parameter in respect to all the brands and also in the case of inter study except in magnesium content for two brands all the other brands having different value.
Objective: A simple comparative study of evaluation of biochemical oxygen demand (BOD) of river water of Ganga's has been developed with statistical analysis between far water and near water.The Material and Methods: process has been conducted by simple titrimetric method by taking four 200 ml BOD bottles (two for sample & two for blank) and analysed two different intervals in the gap between five days. The total process was repeated for four times times, one for near water & another for far water.Far water BOD value came less than near water BOD Results: value as the experiment have been performed.So it can be concluded that far water system in more Conclusion: compatible for aquatic life.
Among the all bacteriostatic substance metronidazole is an important active substance that has been used for antibiotic and antiprotozoal medication. It is used for the treatment of pelvic inflammatory disease, endocarditic, dracunculiasis, giardiasis, trichomoniasis, amebiasis, and most important in bacterial vaginitis. According to World Health Organisation's list of essential medicines metronidazole is most effective and safe medicine for human health system with few common side effects such as nausea, metallic taste, loss of appetite and headaches when taken it orally (Yellanki et al., 2010). An attempt has been made, in the present work, to develop antibacterial gels of Metronidazole, using a bland of
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