Tetraethoxysilane (TEOS‚ 99%)‚ chloropropyltriethoxysilane (CPTES‚ 99%)‚ absolute ethanol (EtOH‚ 99%) and other chemicals were purchased from Merck and Sigma Aldrich companies and used without further purification. Ciprofloxacin was purchased from Pars Daru Company. Preparation of modified magnetic silica NPs (Fe3O4@SiO2~Cl) Initially‚ the magnetic NPs prepared through a coprecipitation method and coated with a silica layer via a modified sol-gel method [20]. In brief‚ FeCl3.6H2O (0.036 mol) and
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The antioxidant capacity of Bifurcaria bifurcata extracts from the Peniche coast was evaluated by the analysis of the total polyphenol content (TPC)‚ by the DPPH free radical scavenging activity and by Oxygen Radical Absorbance Capacity (ORAC). The results are expressed in Table 1. The methanolic fraction was more potent than the dichloromethane fraction‚ with an EC50 of 58.82µg/mL (50.65 – 68.31)‚ which was very similar with the standards‚ ascorbic acid and BHT‚ that exhibited an EC50 of 22.43µg/mL
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The refinery utilizes below listed Basic processes to meet the above objectives: 1) Separation: Vaporizing fractions of crude feed & subsequent separation of fractions based on varying boiling points. 2) Reforming: Reconfiguration of molecules for better value added products. 3) Treating (Hydrotreating): Removal of salts of metal contaminants – Nickel‚ Vanadium‚ Sulphur‚ etc to give Clean Fuel as per environmental norms. 4) Cracking: Break down larger hydrocarbon molecular into smaller ones for
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Linearity: A linear correlation coefficient factor was obtained between the peak area used and the absorbance Verses concentrations of lamivudine‚ zidovudine and nevirapine. The calibration curves were linear for concentrations between 15-150 µg/ml. The linearity of the calibration curves was validated by the values of the correlation coefficients (r2). The correlation coefficients were 0.999 for lamivudine‚ 0.999 zidovudine and 0.999 for nevirapine. The results of the linearity experiment are listed
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Chemical Properties of Ethylbenzene Property (Condition‚ Method) Synonyms Name Ethylbenzene; benzene; ethylbenzol; phenylethane; etilbenzene; ethylbenzeen; aethylbenzo; ethylobenzen Chemical Formula C8H10 Chemical Structure Table 1.1: The table of chemical properties of Ethylbenzene. Table 1.2 The table of the physical properties of Ethylbenzene. Chemical and Physical Properties of Styrene Property (Condition‚ method) Common Synonym Vinyl Benzene; phenylethene; ethenyl Benzene; cinnamene Molecular
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Radiator fluid Coolant Radiator fluid is an essential unit of the auto since it shields the motor from the solidifying harm. At the point when the water gets changed over into ice‚ it represents an issue for the auto. Liquid catalyst is really the warmth exchange liquid which is utilized to ensure the solidifying. In both the sunlight based water radiators and the HVAC chillers it is utilized. Concoction are added to the water keeping in mind the end goal to keep the solidifying. Liquid catalyst
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Discussion and Interpretation of Results The addition of HBr to 1-hexene created a 2-bromohexane‚ as indicated from the ethanol silver nitrate test and sodium iodide/acetone test. The observations when the product was subjected to these tests were similar to what were observed with the 2° bromide compound. When subjected to the silver nitrate test‚ the product produced a precipitate at the same rate of the 2° bromide compound‚ and the product produced a hue of yellow that was also similar to the
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Paper‚ checks‚ currency‚ unfinished wood‚ and cardboard are all examples of porous evidence. At a crime scene this type of item might be a tissue box‚ pieces of mail‚ business cards‚ pictures‚ books‚ notes‚ and walls with porous types of paint. There are a few different processes available to lift a print from a porous item; it really depends on the condition of the item. Investigators often use chemical methods such as iodine fuming‚ silver nitrate‚ or ninhydrin to locate latent prints on porous
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The wretchedness and harming of a broken bone can be to a great degree shrewdness‚ and it would appear there’s nothing to do except for set the bone and sit tight for it to sew back together. Notwithstanding‚ there are genuinely standard cures that can speed the recuperating. One of them uses comfrey‚ a wearisome herb that is neighborhood to Europe and Eurasia. Both the leaves and crucial foundations of comfrey are utilized restoratively‚ and it is so wonderful at correcting broken bones and wounds
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Seperating and Extracting the Components of Panacetin Aim: To measure‚ analyze‚ through extraction and seperation of the components of chemical‚ Panacetin‚ which will conclude whether the label attached measures adequate amounts and contains US grade safe contents to which the drug‚ Panacetin‚ is originally produced by. Extraction of the chemicals Sucrose‚ Aspirin‚ and an Unknown substance is tested to determine the legitimacy of the label and drug. Theory: The percent composition is calculated
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