Chromatography Analysis of Black Pens to Determine Unknown Sample Purpose: Paper chromatography was performed on five different black pens‚ using four different solutions to determine which would be most appropriate to use on an unknown sample. Paper chromatography was then performed on the unknown sample to identify which pen was used to create it. Procedure: Each person participating in the analysis was assigned one solution to work with: V. Temple used distilled water‚ D. Sellers used
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Candy’s realistic fears of failure fuel his dreams; however‚ although he fears failure‚ his insecurities actually make him extremely successful and receiving empathy from the reader. Candy is the oldest character in Of Mice and Men. He is immensely kind to everyone and never tries to gain respect through fear. Not only is he old‚ he is handicapped as he is missing one of his hands. With this in mind‚ he realizes that it is very hard to secure himself a stable job when he is already old and handicapped
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Candy’s Analysis Candy Marshall is the main character of the novel‚ even though the plot actually has little to do with her. She is the main character because Beau Boutan’s murder takes place on her plantation in Mathu’s yard. Candy is a very strong woman and fights for what’s right. In this novel candy is very protective and shows it more and more as the story goes on. Another example is when the old men go into the house to talk and don’t invite candy in. because she that she will “evict them”
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Instructor: Ma ’am Lioanag Section: Civil Engineering 1-19 Date Performed: July 27 ‚ 2013 Group No.: 3 Date Submitted: August 3 ‚ 2013 Experiment No. 4 : PAPER CHROMATOGRAPHY INTRODUCTION The objective of this experiment was to resolve a given sample into its components by paper chromatography‚ to evaluate the retention factor of each component in the sample and to compare the relative solubility of the various components of a mixture of colors in a given solvent. METHODOLOGY
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Quote• Candy Quote 1 The old man [Candy] squirmed uncomfortably. "Well-hell! I had him so long. Had him since he was a pup. I herded sheep with him." He said proudly‚ "You wouldn’t think it to look at him now‚ but he was the best damn sheep dog I ever seen." (3.56) This is almost the exact same thing that George says about Lennie: he’s "had him so long." But can you really be friends with a dog? Or someone who’s way mentally inferior to you? Chapter 3 Friendship Quote 2 "A guy on a ranch
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Affinity chromatography technique is used to separate proteins found in a mixture of solution. Affinity chromatography uses the strong interaction between a given protein and its corresponding molecule. In today’s lab‚ affinity chromatography was used to purify L-lactate dehydrogenase‚ which contains histidine-tagged protein. The histidine- tagged protein forms a strong interaction with the Ni-NTA column due to the presence of nickel ions. Varying concentration of imidazole was added to the column
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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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It’s just sugar‚ right? Candy -- kids’ stuff. Well‚ don’t be too sure. In the hands of top engineers and scientists‚ ordinary sugar is doing some extraordinary things. Circus Candy Inspires a Medical Miracle Talk about sweet science; medical researchers are building artificial body parts using (believe it or not) cotton candy. If you’ve ever eaten it‚ you know how tangled (and sticky!) cotton candy can be. Those traits come via some surprising science. Cotton candy is made from almost pure sugar
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understand that because substances have different properties‚ such as mass‚ that can be separated by chromatography. In our experiment‚ we chose 4 different color source to separate in water. We made sure that all the sources were water soluble because only polar substances will dissolve in water. We chose a black wet-erase marker‚ a red marker‚ a green marker‚ and mixed food coloring to test. The chromatography paper was split into 4 sections‚ about 2 cm above the bottom edge and evenly spaced out. Each
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Gas chromatography (GC) is a type of chromatography that uses a carrier gas as the mobile phase and a column as the stationary phase. The sample is injected into the instrument and is heated until the sample‚ which includes both analyte and solvent‚ boils. The analyte must have
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