"Protein characterization by gel filtration chromatography" Essays and Research Papers

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    Gel Electrophoresis is used to separate the haemoglobin component of blood. Because each type of haemoglobin (HbA‚ HbS‚ Hbc and more) have different electrical charges‚ they will separate after undergoing gel electrophoresis. Firstly‚ a blood sample from the patient is taken and is applied to a cellulose acetate membrane strip that has been soaked in a buffer solution along with saponin. The red blood cells are lysed by the saponin while being soaked‚ therefore they release their haemoglobin. A

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    CHEM 2204 Chromatography Lab by wyk.wong » Fri Jul 11‚ 2014 10:25 am Results and Calculations Rf values Rf=(Distance moved by the spot (cm))/(Distance moved by the solvent front (cm)) Toluene: Rf=2 cm/3.8 cm=0.53 (Fluorenone) Rf=1.1 cm/3.8 cm=0.29 (Fluorene) Hexane: Rf=1.8 cm/2.2 cm=0.82 (Fluorene) Rf=0 cm/2.2 cm=0 (Fluorene Table 1: Experimental IR peaks compared to literature IR peaks for fluorenone Functional group Experimental peak (cm-1) Literature peak (cm-1) C-H 3010.5 3013

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    Gas Chromatography Essay

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    Gas chromatography (GC) is a chromatography technique where the separation of individual components (analytes) from a sample relies on their differing distribution between a mobile and stationary phase. The mobile phase carries the analytes through the stationary phase. In GC‚ it’s an inert gas (usually helium or nitrogen). The gas must be inert‚ so it won’t react with the sample to give a false reading. The stationary phase is a substance fixed in place to which the sample adsorbs because

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    Title: Purification of Green Fluorescent Protein Introduction: Transformation is used to introduce a gene coding for a foreign protein into bacteria. Hydrophobic Interaction Chromatography (HIC) is used to purify the foreign protein. Protein gel electrophoresis is used to check and analyze the pure protein. Research scientists use Green Fluorescent Protein (GFP) as a master or tag to learn about the biology of individual cells and multicultural organisms. This lab introduces a rapid method

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    forensic anthropologists ran a gel electrophoresis with DNA from Skeleton 3 and two missing persons‚ Julia Ly and Teresa Chen to help in DNA identification. This process would allow restriction enzymes to cut by a specific restriction site and run through the gel‚ where the DNA fragments would move from the negative side to the positive side of the gel due to the negative charge of the phosphate group in DNA. The smaller the DNA fragments‚ the further they move down the gel. As mentioned above‚ the DNA

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    Energy Gel Case Summary

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    company decided to proceed with the project‚ then the new product‚ Energy Gel‚ should be evaluated. The Energy Gel case describes three approaches in order to estimate project costs which are direct cost advocated by Harry Wickler‚ full cost supported by Mark Leiter‚ and equipment based costing supported by Frank Nanzen. The direct costing basis only considers the variable costs that are directly identified with the Energy Gel project. However‚ it ignores many costs or benefits including cannibalization

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    Gas Chromatography Lab

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    Data and Conclusions: The purpose of this experiment was to learn how to use distillation and gas chromatography to separate and identify different compounds from a given mixture. There are several kinds of distillation methods. However‚ the method that we used in this experiment was fractional distillation. This method is used when trying to separate two different volatile compounds whose boiling points differ by 40-50°C or more. If the boiling points are too close‚ this method

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    Title: Purification of Egg white protein Name: Michael Johnson Partner: David Logad & Nandita Date: 2nd – 9th September 2004 Group: Thursday 11:30am - 3:30pm Introduction Salting Out In 1888 Hofmeister that it can be possible to dehydrate a protein by adding salt to the solution‚ salting out. When a protein in a aqueous solution it is surrounded by water‚ in fact there can be up to 0.35g of water tightly bound to 1g of protein (Simpson 2004). Also the effectiveness of the salting out

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    Naphthalene Chromatography

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    Abstract Finding the melting point of an organic substance is a practical and efficient way for scientists to identify an unknown substance or determine a known substance’s level of purity. When organic substances are mixed together in varying degrees they take on a melting characteristic that is lower and broader than in its pure form. This property was manipulated in the lab to observe the various melting points of Naphthalene and Biphenyl when the percentage of composition was altered. A

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    Characterization Writing

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    Characterization Writing Click! I heard the door slide open‚ hitting the wall with a soft thud. I opened my eyes and saw the shadow of a dark figure holding a knife in the doorway. I pulled the blanket up to cover my face‚ leaving only my eyes uncovered. I heard the creak of a floorboard‚ and the shadow advanced towards me‚ a silent murderer. I slid completely underneath the blankets‚ willing myself to wake up from this nightmare. I heard the sound of another footstep‚ whipped of the blanket‚

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