Succulence was determined according to the following equation: Succulence = Fresh Weight/Oven Dry Weight…………………........................................................(1) Measurement of Relative Water Content (RWC%);Relative Turgidity (RT %): Relative water content was estimated according to a modification of the method of Weatherly (1950); Weatherly and Barr (1962); Slatyer (1957);Fletcher et al. (1988)on the final day of the experiment and was calculated by the formula given byKramer (1983).Detached
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Organic Lab 1: Fractional Distillation Discussion: With the purpose of the experiment being to identify the 30 mL of unknown liquid‚ the theoretical basis of simple and fractional distillation must be deconstructed and applied to the data obtained describing the liquid in question. Simple distillation is a separation technique which can be used to separate and purify distillates from a liquid mixture which ideally contains one volatile and one non-volatile compound. If such ideal conditions are
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nematocidal activities. Due to its poor solubility there is a need to formulate this curcumin for better bioavailability. Curcumin was extracted by acetone using soxhlet apparatus and evaporated by means of vacuum rotary evaporator. The presence of curcumin was confirmed by differential scanning calorimetry. Nanosuspension was prepared by bottom up method using acetone and water solvent system. Stabilizers were added under optimized conditions in order to achieve suitable quality of nanosuspension. Then it
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|12mL |----- | |95% ethanol |10mL |transparent liquid | |Acetone |10mL |transparent liquid | |Complex |9.198g |blue powdery substance
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think of. But‚ here is some more info on the Web shooter. First‚ the "works" of the Web shooter. The Web shooter has a heating coil in it. The heating coil is used for burning acetone. When the pressure valve is opened‚ it releases the pressurized web fluid. Which then goes through the heating coil. While this happens‚ the acetone will burn off and let the chemicals bond into a fiber. Now you’re probably wondering how does it shoot out? It gets out from...GAS PROPULSION. Now can you guess which gas?
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Materials and Methods: PLGA (50:50 copolymer compositions; MW 30‚000 Da)‚ berberine chloride hydrate (MW 371.81 Da)‚ poly vinyl alcohol (MW 89‚000 Da) and 15 and 50 mL Corning centrifuge tubes were purchased from Aldrich (St. Louis‚ MO‚ USA). Acetone was purchased from Fischer Scientific Laboratory (Fair Lawn‚ NJ‚ USA). Phosphate buffer pH 7.0 was purchased from EMD Chemicals Inc. (Gibbstown‚ NJ‚ USA). 0.2 micron syringe filters were obtained from Millipore Corporation (Carrigtwohill‚ Ireland). 1
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impurity peaks (>10%) corresponding to methyl (triphenylphosphoranylidene) acetate‚ acetone‚ ethyl acetate‚ and hexane were identified. The phosphonium ylide peak indicates that the reaction did not go to completion (leftover starting material). Meanwhile‚ the acetone‚ ethyl acetate‚ and hexane peaks show there was residual solvent in the sample submitted for NMR analysis (compounds were not in reaction scheme). Because acetone‚ ethyl acetate‚ and hexane are volatile‚ we deduced that our evaporation of the
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Experiment #9 – Identification of Aldehydes and Ketones Introduction Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other attachment may be to a carbon or a hydrogen. In all cases the carbon(s) that are attached to the carbonyl group may be aliphatic (not
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type of consumer or industrial goods that utilize the products manufactured by Eastman.[5] Coatings‚ adhesives‚ specialty polymers and inks Utilizing raw materials including propane‚ ethane‚ butane‚ high sulfur coal‚ natural gas‚ wood pulp and acetone‚ Eastman produces several products in this category. Products include cellulosic polymers‚ cellulose esters‚ adhesion promoters‚ Texanol ester alcohol‚ solvents‚ hydrocarbon resins‚ rosin resins‚ resin dispersions‚ and polymer raw materials. These
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CHAPTER I THE PROBLEM AND ITS BACKGROUND Background of the study Herbal medicines have been part of the ingenious way of living in the society since the earlier times. Primitive men have been using this kind of medicine as the primary method of medication without undergoing different industrial processes. Herbal medicines have really come a long journey way back to the ancient times of Herbalism. One of the considered pioneers in Herbal medical field was Imhotep‚ a priest-physician of the ancient
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