"Supercritical fluid extraction" Essays and Research Papers

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    Ruminant Fluid

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    Tanya 2012 Ruminant fluid lab Tanya 2012 Ruminant fluid lab Lab report Ruminant fluid Tanya Zoo Physiology 31.10.2012 Zoo phy Zoo physiologysiology Lab report Ruminant fluid Tanya Marlene Tysnes Zoo Physiology 31.10.2012 Zoo phy Zoo physiologysiology Introduction Ruminants - Grass-eating (herbivorous) mammals with a paunch with micro-organisms that digest cellulose and other polysaccharides from plant sources. Most animals lack the enzyme‚ that is necessary

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    Discussion: Extraction and crystallization- The purpose of this lab was to extract and crystallize compounds in a mixture using acids and bases. 1 gram of the unknown was dissolved into 30 mL of ethyl acetate. The mixture was then transferred to a separatory funnel. Using aqueous solutions of different pH we were able to separate organic acids‚ bases and neutral compounds from each other. Using three 10 mL portions of HCl‚ we reacted the HCl with the base in solution. This made it possible to

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    fluid balance

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    Ions‚ atoms and molecules are constantly in random motion; this is mainly marked in liquids and gases as they are further apart. When there is a small amount of molecules of a substance in an area and a large number is another area and they have no barrier between them the random motion causes numbers to even up; this is called diffusion. Diffusion is when molecules move from a high concentration to a low concentration. The concentration gradient is when the concentration is different for each

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    Dna Extraction

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    DNA EXTRACTION In extracting chromatin from the cells of wheat germ there are seven steps to follow. The optimal cell to use would be the polyploidal eukaryotic. Eukaryotes have nucleus membrane-bound organelles‚ while prokaryotic does not. The polyploidal eukaryotic cell has DNA that is held in the nucleus while the prokaryote has DNA that floats freely around the cell. The DNA of eukaryotes is more complex and extensive than the other. Prokaryote is a bacterial cell that

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    Caffeine extraction

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    Objective:     To extract caffeine from tea powder using polar - nonpolar solvent extraction technique. Theory:   The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves

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    DNA EXTRACTION

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    Beakers15 cm Cheesecloth1 Resealable Bag1 Rubber Band (Large. Contains latex pleasewear gloves when handling if you have a latex allergy).Standing Test TubeWooden Stir StickFresh‚ Soft Fruit (e.g.‚ Grapes‚ Strawberries‚ Banana‚ etc.) ScissorsDNA Extraction SolutionIce Cold EthanolYou Must ProvideContains sodium chloride‚ detergent and waterFor ice cold ethanol‚ store in the freezer 60 minutes before use. Procedure If you have not done so‚ prepare the ethanol by placing it in a freezer for approximately

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    Fluids and Electrolytes

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    2011 Pre-course Learning Objectives: Fluids and Electrolytes: 1. Identify and describe the composition of the fluid compartments within the body Either Intracellular fluid (ICF- 2/3 of the body’s water) or extracellular fluid (ECF -one third of the body’s water). The two main extracellular fluid compartments are the interstitial fluid and the intravascular fluid‚ which is the blood plasma. Other ECF compartments include the lymph and the transcellular fluids such as the synovial ‚ intestinal‚

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    Fluid Statistics

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    Chapter 3 Fluid Statics: Definitions Statics: ∑F = 0. In statics we have only pressure as surface force and weight as body force. Thus‚ when fluids are still‚ the pressure is balanced by the fluid weight. No relative motion between adjacent fluid layers. Shear stress is zero Only _______ can be acting on fluid surfaces Gravity force acts on the fluid (____ force) Applications: Pressure variation within a reservoir Forces on submerged surfaces Buoyant forces 9/4/2013 1 Pressure Pressure is defined

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    Fluid Mechanics

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    negligible loses‚ 3 standard flanged 90 smooth elbows (KL = 0.3 each)‚ and a sharp-edged exit (KL = 1.0). We choose points 1 and 2 at the free surfaces of the river and the tank‚ respectively. We note that the fluid at both points is open to the atmosphere (and thus P1 = P2 = Patm)‚ and the fluid velocity is 6 ft/s at point 1 and zero at point 2 (V1 = 6 ft/s and V2 =0). We take the free surface of the river as the reference level (z1 = 0). Then the energy equation for a control volume between these two

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    extraction of metals

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    EXTRACTION OF METALS SUMMARY Most metals exist in compounds in rocks in the Earth’s crust. Many of these ores contain oxides or sulphides of the metals. The compounds need to be reduced to produce the metals as elements. Metals are very useful to us because of their special properties. Reduction means removal of oxygen or gain of electrons. Carbon is a good chemical reducing agent because it readily combines with oxygen‚ but it is only useful for the metals below it in the Reactivity

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