Saponins 3. Terpeneol 4. Terpene Limonoids III. Polyphenolics A . Flavonoid Polyphenolics 1. Anthocyanins 2. Catechins 3. Isoflavones 4. Hesperetin 5. Naringin 6. Rutin 7. Quercetin 8. Silymarin 9. Tangeretin 10. Tannins B . Phenolic Acids 1. Ellagic Acid 2. Chlorogenic Acid 3. P-Coumaric Acid (Para-Coumeric Acid) 4. Phytic Acid 5. Ferulic Acid 6. Vanillin 7. Cinnamic Acid 8. Hydroxycinnamic Acids C . Other Non-Flavonoid Polyphenolics 1. Curcumin 2. Resveratrol 3. Lignans IV. Glucosinolates
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funnel. Product was left in the drawer to dry over the weekend and weighed 1.08g after drying. TLC and H-NMR was not conducted due to time
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thin layer chromatography (TLC) was used. A very thin (micron) film of silica is coated on a glass plate or a sheet of aluminum or plastic. The ingredients of commercial analgesics were characterized in comparison with chromatograms of aspirin‚ Acetaminophen‚ caffeine and mefenamic acid. After the TLC was placed inside a UV chromatography box‚ it appears that the sample analgesic contains D‚ which is mefenamic acid. Keywords: Chromatography‚ Pigments‚ Analgesics‚ TLC Results and discussion
Free Chromatography Thin layer chromatography Chemistry
organic phase are used. During extraction the desired compound moves one phase and leaves the unwanted substance behind. Extraction normally has to be done a few times to leave all of the impurities behind. TLC plating can be used to mark the progress of the extraction. Thin Layer Chromatography (TLC) Plating: This is a common method that is used to monitor the progress of a reaction and determine when it is complete. In our chromatography there was a stationary phase/adsorbant of Silica gel and we
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Discussion and Scientific Explanations The reaction was conducted using granular tin and hydrochloric acid. This mixture provided both a source of electrons and protons1. The electrons worked as the reducing agent in this mechanism1. Granular tin was chosen over a single plate of tin due to the fact that it would take much more time and effort to fully dissolve a single plate of tin. A plate of tin would be more bonded to each other and less likely to be reactive. With the addition of the concentrated
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5.5 | -4.5 | 0.5 | b- Suppose the price for a basic car wash (no under coating ‚no wax treatments etc.) in his area of business is LE 5. How many people should he hire if he pays each worker LE 6 / he.? L | TP | MP | AP | TRP | MRP | TLC | MLC | TRP-TLC | MRP-MLC | 0 | 0 | | | 0 | | 0 | | 0 | 0 | 1 | 5.5 | 5.5 | 5.5 | 27.5 | 27.5 | 6 | 6 | 21.5 | 21.5 | 2 | 10 | 4.5 | 5 | 50 | 22.5 | 12 | 6 | 38 | 16.5 | 3 | 13.5 | 3.5 | 4.5 | 67.5 | 17.5 | 18 | 6 | 49.5 | 11.5 | 4 | 16 |
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of Chlorophylls and Beta Carotene from Plant Leaves Wang Haina A0133901R 1. Aim 1. To isolate chlorophyll and beta carotene from plant leaves using column chromatography. 2. To qualitatively characterise the pigments with UV-vis spectroscopy and TLC. 2. Results and discussion Isolation of beta carotene and chlorophylls by column chromatography Upon the loading of S1 (the extract of the plant leaves in hexane)‚ a yellow band appeared at the top part of the silica column immediately after the
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. Yes‚ comparably to TLC plate 2 and 3. The benzophenone is more neutral but as the same time its nonpolar‚ being that Silica gel in TLC 2 was polar and the solvent ethyl acetate-hexane is non-polar it moved relatively with the solvent. The stationary phase in TLC 3‚ alumina is non polar and the solvent ethyl acetate is polar so from the ideal that polar does not attract non-polar benzophenone stick stronger to alumina non-polar rather than moving up with polar solvent ethyl acetate as it did in
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Constituents from Butea Superba When age increasing‚ the male’s hormones i.e. Testosterone and Dehydroepiandrosterone will gradually decreasing unlike female menopause. The chemical constituents from Butea Superba are consisting of flavonoids‚ flavonoid glycosides and phytosterols such as Butein‚ Formononetin‚ Prunetin‚ beta-sitosterol‚ campesterol‚ stigmasterol and others. Normally‚ the Testosterone to Estrogen ratio in adult male is about 50:1 and gradually decreases to 20:1 or probably
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Herbal supplements & their Standardization. Herbal supplements are a type of dietary supplement that contain herbs‚ either singly or in mixtures. An herb (also called a botanical) is a plant or plant part used for its scent‚ flavor‚ and/or therapeutic properties. A dietary supplement is a product taken by mouth that contains a "dietary ingredient" intended to supplement the diet. The "dietary ingredients" in these products may include: vitamins‚ minerals‚ herbs or other botanicals‚ amino acids
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