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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6 R’s The 6 R’s are an important checklist. They are used by designers to reduce the environmental impact of products. They can also be used to evaluate the environmental impact of other products. Respect – In order to understand what it means to be a part of the solution‚ you have to begin with respect. Respect for all things: people‚ animals‚ bugs‚ birds‚ fish‚ snakes‚ rivers‚ lakes‚ oceans‚ trees‚ mountains‚ valleys and so on. Rethink — Everything on Earth is connected‚ and every decision
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Thin Layer Chromatography of Unknown Samples and Paprika By: Uyen Huynh Date: June 18‚ 2014 Lab Partners: Philip Murray Professor and section: M. Pandey‚ CHM2210L.601 Data: Analysis of Drug Store Items Knowns Rf Values Aspirin .91 cm Acetaminophen .85 cm Ascorbic Acid .86 cm Unknown .97 cm Identity of unknown mixture Acetaminophen Analysis of Paprika Pigments Spot Number Rf Color 1 1 Red-orange 2 1 Red-orange Calculations
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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Separation and Identification of Organics from an Aqueous/Organic Environment through Physical Manipulation Date Lab Performed: Nov. 11/2013 Date Lab Submitted: Nov. 18/2013 Introduction We conducted this experiment to investigate the technique of liquid / liquid extraction‚ the miscibility of organics and water and the effect of a mixture of compounds in methylene chloride versus pure compounds retention time as introduced to a Gas
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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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Clocky Invented by Gauri Nanda‚ for an industrial design class‚ then a graduate student at MIT Media Lab‚ Clocky won the 2005 Ig Nobel Prize in Economics. Clocky is a brand of alarm clock with wheels‚ allowing it to move around in order to force you to awake in an attempt to find it. After earning her Masters Degree from MIT‚Gauri Nanda founded a company‚ Nanda Home‚ to commercialize this product Cloky‚ and other home products. The market for watches and clocks was bigger than $7 billion in the
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agree with this decision Negroponte partnerships with companies such as Microsoft‚ which is very trustworthy‚ and reliable name in the computer sector for the operating system and software. Nicholas Negroponte‚ founder and director of the MIT Media Lab‚ introduced the idea for the $ 100 laptop in 2005. The laptop will be directed towards the child in "developing countries." The intent is to help education in those countries. The purpose of this project‚ to be specific‚ is "To provide children around
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Allii Sativi Bulbus Pulveratus Powdered Bawang Bulb * Allii Sativi bulbus Pulveratus is Allii Sativi Bulbus that has been cut‚ freeze-dried or dried at a temperature not exceeding 65˚C‚ and reduced to a powder. Packaging and Storage – Preserve in well-closed‚ light-resistant containers in a cool‚ dry place. Labeling – Print the Official Title and the National Title of the powdered bulb on the label as directed under General Notices and Requirements Part II. Botanic characteristic (see
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