Task 3: How could Thin Layer Chromatography (TLC) have been used to prepare a pure sample of aspirin? The method of using thin layer chromatography is easy‚ quick and relatively cheap to carry out this makes it ideal for preparing pure samples of aspirin. Equipment Required: • Thin Layer Chromatography Paper • Ruler • Pencil • Solvent • Beaker • Micro Capillary • Access to a fume cupboard • UV light • Clingfilm • Individuals sample of aspirin • Pure sample of aspirin • Sample of salicylic acid Method:
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in the BIOL 1F90 Laboratory Manual (Martin‚ 2013)‚ Experiment # 1‚ pages 2-5. Results: Table 1: Culture Sample Chromatography Rf Values Sample of Spot Distance from Origin (mm) Solvent Front (mm) Rf Value Color A 6.0 57.0 0.22 Bluish green B 17.5 56.0 0.105 Dark green blue C 4.0 57.0 0.070 Greenish blue D 4.0 47.0 0.085 Green E 10.5 56.5 0.186 Light blue Figure 1: Chromatography- TLC sheet From left to right- acetic acid‚ citric acid‚
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Hair Dye Side Effects You Should Know The hair dye side effects are huge in number. Do you see your most loved big name get their hair colored and regularly wind up giving into the prevailing fashion? While coloring hair is fun‚ there are a considerable hair dye side effects that you should know about. The hair dye side effects and harm brought on may not generally show up quickly. It might take up to a few days or even weeks after hair coloring sessions. Particularly in the situation that you color
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Are you looking for the best ammonia free hair dyes? If so‚ you will make a wise option‚ because ammonia is a harsh chemical which has several side effects. Therefore‚ in order to inspire you‚ we have gathered some of the best ammonia free hair dyes. Choose Original&Mineral O&M is an Australian brand which produce professional grade ammonia‚ resorcinol and PPD free permanent hair color. All these products were created to prevent fade and UV damage.However‚ they are using some natural active ingredients
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Should Red Dye #40 be banned in the United States? Often‚ we don’t give much thought to the fact that much of what we consume is artificially colored. Red Dye #40‚ also commonly called Red 40‚ is widely used in the foods and drugs that we consume. Red food coloring is the most commonly used dye in the U.S.‚ according to Center for Science in the Public Interest (Carerra‚ 2013). In the food industry‚ red is a very appealing food color. The Food and Drug Administration approve it for use in candy
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CHROMATOGRAPHY _TOPIC_ : 7.2 _RESEARCH QUESTION:_ What is chromatography? How many pigments are there in a plant? How the different pigments in a plant can be separated? _APPARATUS_ : Please refer to the handout _MATERIAL_ : Please refer to the handout _METHOD_ : Please refer to the handout _DATA COLLECTION_: Coloured band Pigment front distance (± 0.05cm) Solvent front distance (± 0.05cm) Green 11.7 13.0 Yellow 12.5 13.0 _DATA PROCESSING_: Coloured band Pigment
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Gas chromatography is the common method used for the biogasoline analysis. Biogasoline catalytic cracking process requires detailed qualitative and quantitative analysis of the hydrocarbon composition of its oil and fraction. In this analysis‚ their fractional composition‚ saturated vapor pressure‚ density and antiknock rating will be investigated. By knowing the qualitative and quantitative composition of the gasolines‚ the content of n-paraffin‚ isoparaffin‚ aromatic‚ naphthene‚ and olefin (PIANO)
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Organic Chem II Lab 2/15/15 Friedel-Crafts Acylation of Ferrocene and Column Chromatography Introduction: The intention of this lab is to analyze the formation of acetylferrocene using column chromatography. The Friedel-Crafts acylation reaction created acetylferrocene and diacetylferrocene‚ using phosphoric acid as a catalyst for the reaction between acetic anhydride and ferrocene (once applying heat). During column chromatography‚ a solution is passed through a filtration system of silica‚ sand‚ and
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A study of the osmoregulatory capabilities in Nereis virens and Phascolopsis gouldi: osmoregulators vs. osmoconformers Introduction Water is essential for life as we know it on this planet‚ and according to Campbell et al. (1999)‚ water is the major constituent of cells. Reactions vital to life occur under aqueous conditions in the body and cells of all organisms‚ and the concentrations of reactants necessary for these reactions depend upon the amount of water present (Pough et al. 2004)
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Natural Dyes from Plants in Producing Colored Paste Abstract: Paste is a type of glue made from starch or dextrin‚ a starch product. This investigatory project shows that we can produce our own colored paste without spending much time and money and by performing simple steps. That’s why this Science Investigatory Project can help students save their money instead of spending it in buying expensive and commercialized colored glue. In addition‚ this colored paste can be an additional source of
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