Sugar (Sucrose)- C12H22O11 Vitamin C (Ascorbic Acid)- C6H8O6 Aspirin (Acetylsalicylic Acid)- C9H8O4 Common Name | Chemical Name | acetone | dimethyl ketone; 2-propanone (usually known as acetone) | acid potassium sulfate | potassium bisulfate - used in the conversion of tartrates to bitartrates in wine. | acid of sugar | oxalic acid – used in cleaning or bleaching‚ especially for the removal of rust (iron complexing agent) | ackey | nitric acid | alcali volatil | ammonium
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subtance spot over the distance from origin to solvent front. As a result‚ the TLC analysis of Biogesic® yields the following Rf values where the given distance from origin to solvent front measures 59 mm: 1.) acetaminophen has a Rf value of 0.48; 2.) aspirin has a Rf value of 0.64; 3.) caffeine has a Rf value of 0.22; 4.) Biogesic® sample has a Rf value of 0.48 ; 5.) ibuprofen has a Rf value of 0.73; and 6.) mefenamic Acid has a Rf value of 0.76. Thus‚ the study shows that by having equal Rf values of
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EFFECT OF pH LEVEL ON THE ENZYME ACTIVITY OF INVERTASE John Dale Cruz‚ Michael Ray Dela Cruz‚ Karen Angelica Domalaon‚ Abegail Dulay‚ Shirley Ann Felipe Group 5 2C Medical Technology Biochemistry Laboratory ABSTRACT Invertase is a type of enzyme‚ a natural catalytic agent for biochemical reactions‚ can be obtained in Baker’s Yeast. Determination of the effect of pH on invertase activity is the primary objective of the experiment. Dinitrosalicyclic acid (DNS) Assay method is utilized to monitor
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UV- VISIBLE SPECTROPHOTOMETER INTRODUCTION In chemistry‚ spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. It is more specific than the general term electromagnetic spectroscopy in that spectrophotometry deals with visible light‚ near-ultraviolet‚ and near-infrared‚ but does not cover time-resolved spectroscopic techniques. Spectrophotometry involves the use of a spectrophotometer. A spectrophotometer is
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a reagent and then examining the color and morphology of the crystals that form. This test can be done quickly and the drug does not need to be separated from any other substances that it is with. 5. What is spectrophotometry? How can this be useful in identifying drugs? Spectrophotometry tests use UV lights to distinguish drugs from one another. Because different drugs react differently to the UV light‚ it helps identify them. Critical Thinking Questions 1. Why are forensic scientists an important
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and then examine the color and the morphology of the crystals that were formed. They provide the size‚ color‚ and shape of the crystals; this is useful because the crystals differ from drug to drug. 5. What is spectrophotometry? How can this be useful in identifying drugs? Spectrophotometry is a drug test that uses ultraviolet and infrared light. This test tells whether a drug is present or not‚ and then can be used to compare the measurements of different drugs. Critical Thinking Questions
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color test‚ it is also much faster and you do not need to separate the substance from other substances it’s with. 5. What is spectrophotometry? How can this be useful in identifying drugs? The Spectrophotometry is useful by identifying drugs. Like the color test‚ it cannot point out a specific drug‚ but it is very useful for determining if a drug is present. The spectrophotometry uses UV and infrared light and is tested to see how the light reflects or absorbs the light. Critical Thinking Questions
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ibuprofen‚ aspirin‚ acetaminophen‚ caffeine. According to their molecular structures‚ caffeine is the most polar because of the unpaired electrons on the nitrogens and the unpaired electrons on the oxygens. In other words‚ one side of the molecule has two amides and is more negatively charged due to the lone pairs of electrons on the two nitrogens and the two oxygen (6 pairs of lone electrons)‚ while the other side has 1 amine and is less negatively charged. On the other hand‚ aspirin is only slightly
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crystallization process itself helps in the purification because as the crystals form‚ they select the correct molecules‚ which fit into the crystal lattice and ignore the wrong molecules. This is of course not a perfect process‚ but it does increase the purity of the final product. The solubility of the compound in the solvent used for recrystallization is important. In the ideal case‚ the solvent would completely dissolve the compound to be purified at high temperature‚ usually the boiling point of the
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Experiment 2 Title: Determination of Quinine in Tonic Water Objective: To Determine the Concentration of Quinine Hydrochloride in Sample (Schweppers) given‚ by plotting a Calibration Curve of Fluorescent Intensity against Concentration of Quinine Hydrochloride in ppm‚ after Fluorescence Intensity of a series of Standard Solution prepared and the Sample solution by Fluorescence Spectrometer. Data: Brand name of tonic water sample: Schweppes Dilution factor = 1000 Concentration of
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