Title of experiment 3: Gel Filtration Chromatography of LDH INTRODUCTION Gel filtration chromatography is a type of column chromatography in which separated protein‚ peptides and amino acids on their molecular size. The stationary phase consists of beads containing pores. The mobile phase is the solvent that is found both around the beads and in the pores of the stationary phase matrix. As the sample is passes through the column‚ the molecule that are larger than the pores will not retarded by
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Solutions Offered by Rochem in Various Platforms 1. Reverse Osmosis: It is one of the most widely used technologies to treat industrial waste water. It has been commonly used to remove salts and various other impurities so as to improve the parameters such as pH‚ biological oxygen demand‚ chemical oxygen demand. This technology is already on the rise because of its efficacy and cost efficiency. Reverse Osmosis is a phenomenon wherein water is separated from a solution of dissolved solids by the
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Physioex 9.0 Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Name Lab Time/Date ___ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. Size of material and concentration 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? The molecules were too large to pass through. This is what I predicted
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Mixtures can be separated by physical processes such as filtration and evaporation. Filtration is a process where solids and liquids can be separated. The liquid that passes through the filter paper is called a filtrate. Evaporation is a process where two liquids or a solid mixed into a liquid can be separated. To separate two liquids mixed together‚ the liquid
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In the experiment‚ synthesis of copper compounds‚ the purpose was to recover the original amount of copper after series of chemical reactions. Then returning the copper back to its original form. The copper wire originally weighted 1.0099 g‚ but after the copper was transformed into Cu(OH)2 to CuO to CuSO4 and finally into Cu‚ the mass of the recovered copper was 1.1023g; the percent yield was 109%. Since the percent yield is more than 100%‚ an error must have occurred somewhere in the lab. A possible
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pressure on the compressibility of yeast cells beds were further investigated both by filtration experiments and by centrifugal experiments based on the multiple speed equilibrium sediment height technique. When comparing the latter measurements with compression model calculations‚ we observed that the method based on centrifugal experiments suffers from rapid relaxation of the compressed bed. Concerning the filtration experiments‚ specific resistance of well defined bed of cells were calculated by a
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During this experiment‚ my lab partner and I learned of the two different types of filtration we can use in the laboratory. Those two types of filtration were the gravity filtration and the vacuum-assist filtration. We used chalk at the solid that needed to be filtered in the water solution‚ noticing that it was the suspension in the experiment. First‚ I prepared the filter paper correctly folding
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deprotonated by sodium hydroxide and acted as a nucleophile to attack the benzaldehyde. A water-cooled condenser was used to heat the solution at reflux. Vacuum filtration was used to wash and dry the product. The benzoin product was recrystallized by dissolving with a H2O/95% ethanol (2:1‚ v/v) solution and heated to reflux. Vacuum filtration was used to wash and dry the product. Introduction/Background: Introduction: Discussion of the mechanism of the performed reaction; discussion
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Problem Summary Applied Research Technologies‚ Inc. (ART) is facing a strategic decision in its Water Filtration Unit. The long-standing project‚ currently named RIMOS‚ has faced two market introduction failures. Despite these setbacks‚ the technology continues to show promise and our analysis of the available data suggests successful market introduction of the product for residential irrigation is encouraging. Analysis A SWOT and balanced scorecard analyses of marketing‚ finance and strategic
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Name: Bhumiben Shah Date: 31st Jan ‘13 EXPERIMENT # 2 RECRYSTALLIZATION; FILTRATION OBJECTIVES: 1. To perform recrystallization and filtration of given impure organic compound. 2. To purify impure acetanilide using reflux condenser apparatus and Hirsch funnel filtration. 3. To determine percentage recovery of pure material (which is)‚ purified by recrystallization and filtration. SAFETY PRECAUTIONS: 1. Operate the aspirator with the maximum water-flow using a stop cock to
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