Natural Products Experiment Niki Robinson 10008562 Practical 2: Identification and quantification of taxifolin from milk thistle Aim: to Identify and quantify the amount of taxifolin from three samples Silymarin stock solution‚ taxifolin and silybum marianum extract. ` Methodology: Using auto-pipette (20-100 microlitre)‚ pipetted 0.06 mg of Taxifolin was added to 10ml conical flask and made up to the mark (10ml) with H2O.This procedure was repeated with the same amounts foe silymarin stock
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1.5.2.5 Detectors The detectors used in UPLC should be able to handle very fast scanning methods because half-height peak widths of less than one second are usually obtained with columns packed with 1.7 µm particles. The detector must be able to give high sampling rate adequate to capture enough data points across the peak for an accurate and reproducible integration of analyte peak. The dispersion (volume) of the detector flow cell must be minimal to maintain separation efficiency. Conceptually
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Steinbeck presents Candy as a character to be pitied in many ways: When Carlson demands that Candy removes the dog from the bunkhouse‚ this makes us pity Candy as he feels he has to apologise for the smell‚ even though he has “.. been around him so much” that he no longer notices “..how he stinks.” The old dog has been with Candy for a long time‚ it is his only companion and Candy ‘squirmed uncomfortably’ when Carlson told him to shoot the dog. This statement shows that it is hard for Candy to think about
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Steinbeck presents Candy as a vulnerable character. He does this by referencing him as an “old man” before citing his name‚ using pre-modification; so that the reader instantly knows not only his physical state but maybe that metaphorically he is a weak person. He is also shown to be desperate throughout the opening of chapter 2‚ where he tries to make friends with George and Lennie as soon as he meets them. He gossips about other people on the ranch and makes sure George “won’t tell Curley nothing”
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possible to identify which peak correlates with which compound. Figure 2 contains a peak at around 500 and 700 nm which is a good indicator that that would-be chlorophyll b. This makes sense because this was the bottom band from the thin layer chromatography and chlorophyll b is the most polar compound. Chlorophyll B contains an aldehyde where chlorophyll A has a methyl group making it slightly more polar. Following that‚ figure 4 contains
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you expect to get candy but this was like the cookie monster and his cookies.Everything you could imagine I had Starburst‚Hershey’s‚Jolly ranchers‚ Reese’s‚ Skittles‚ Warheads‚ Airheads‚Etc…..I had candies of all shapes and sizes! I was oblivious to the fact you can get sick from this much candy‚ I ignored parents saying I would get sick I thought there dumb and aren’t right. After I peered at my candies I thought i’m going to eat all this‚ the Bomb candies and the iffy candies.
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ESSAY In the novel of Mice and Men‚ written by John Steinbeck‚ a lot of themes are shown for example: friendship‚ sacrifice‚ loneliness and insecurities. These themes are exactly the ones for the scene of Candy and His dog. Candy is an old man‚ lonely and insecure man just like his old dog. They rely a lot on each other. They only have each other and it has been that way for a long time but it will change through progress. The death of Candy’s dog is symbolic for Lennie’s. The dog was Candy’s
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Why School Should Ban Candy and Soda? Schools should ban candy and soda because the schools are removing unhealthy and high-calorie items. At least a third of kids the U.S are overweight or obese. That means they’re going to have trouble losing weight or even get lazy to get up and be able to do homework at home. Children consume half of the calories that candy and soda have together. Half of the school’s money goes to the vending machines refill. For example‚ they have to restore the food inside
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Experiment 4 – Liquid Phase Chromatography I. Objectives This experiment’s goal is to explore one-dimensional and two-dimensional paper chromatography. II. Schematic Diagram of the Procedure PAPER CHROMATOGRAPHY Wash leaves‚ cut them into smaller pieces; in a mortar macerate them in circular motion Add 8mL ethyl alcohol to extract pigments‚ continue macerating until finely grounded Transfer extract to evaporating dish‚ allow to conc‚ don’t let extract to dry out Concentration
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Canine Candies Venture has been deemed a success due to the break-even amount being reached and profit being made. As the day was slow to begin with‚ rain being a prominent factor at the start and the market being postponed for 2 hours‚ this could have contributed to not all stock being sold and the lack of people buying. This also wasn’t helped by the lack of cash people had on them‚ most could not be bothered getting money out of the cash point which was directly outside. Surprisingly Canine
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