Spectroscopy

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  • Spectroscopy And Molarity

    the solution. Scientists accomplish this by using the technique of spectroscopy; spectroscopy can be defined as the science affiliated with the spectra produced when matter interacts with light. Lab 7 investigation 19, “What Factors Affect the Intensity of Color?” expands on the process of spectroscopy, and its relation to the molarity of a substance. The goal of this lab was to determine the effects of the intensity of color of a solution (2). Spectroscopy is frequently used in the medical field by using the process of infrared spectroscopy, which is used to examine biological fluids. This can…

    Words: 932 - Pages: 4
  • Spectroscopy Essay

    Types of Spectroscopy used in Organic Chemistry 1.1 Introduction Spectroscopy is the study of the interaction between matter and light (electromagnetic radiation) (Crouch & Skoog, 2007). It is often phrased as the light of knowledge (Reusch, 2013). In the past, spectroscopy started by the study of visible light dispersed according to its wavelength by a prism (Anon., n.d.). Now, with the knowledge of light having both wave-like and particle-like characteristics, with given frequency or…

    Words: 1635 - Pages: 7
  • Disadvantages Of Photoacoustic Spectroscopy

    Photoacoustic spectroscopy (PAS) is a tool to study thermal emission resulting from non-radiative relaxation followed by absorption of radiation. PAS was studied primarily by Alexander Graham Bell, John Tyndall, Wilhelm Rontgen and Lord Rayleigh in 1884. For the history of PAS, was not until 1975 that photoacoustic spectroscopy started to be used as a wide range of different applications. This technique provides the following main advantages over the known types of spectroscopy. The advantages…

    Words: 931 - Pages: 4
  • Light Spectroscopy Lab Report

    Light spectroscopy has become an incredibly useful tool in analyzing the structure and composition of compounds. Specifically, the principles of absorption, the process by which an electron absorbs radiation to excite from a lower energy state to a higher energy state, and fluorescence, the emission of photons when a material is subjected to radiation, allow for the identification and analysis of unknown concentrations of compounds.1 With that being said, the purpose of this experiment is to…

    Words: 1586 - Pages: 7
  • Column Chromatography Lab

    The only compounds that were used for this plate were the spearmint oil, standard for carvone, and the carvone product. The solvent was hexane:ethyl acetate (90:10). This, along with the spotted TLC plate, were added to a 150 ml beaker and covered with a watch glass. The solvent was allowed to move up the plate. The TLC was removed and examined with an iodine jar and a UV light. Each spot had its Rf value recorded. A 10 ml graduated cylinder was filled with hexane. Then, two microliters of the…

    Words: 877 - Pages: 4
  • My First Chemistry Lab

    proud of me after seeing me work with micropipettes and fancy machines like the NanoDrop 2000 software. So, we were assigned the drug Sulfanilamide. We took 0.25mM of the drug and calibrated/standardized in order to create a calibration curve. We separated the two solvents by using a liquid/liquid extraction. That means we mixed our drug with the two solvents and analyzed how much was in both. We then solved for the partition coefficient (Log P) to describe the degree to which the dug prefers…

    Words: 715 - Pages: 3
  • Nmr Spectroscopy Essay

    WHAT IS NMR SPECTROCOPY? By definition, NMR spectroscopy is a research technique that makes use of the fact that certain atomic nuclei exhibit magnetic property to determine their chemical and physical properties for various uses that we’ll discuss later. History of NMR Spectroscopy Year Individual Discovery 1921 Stern and Gerlach Basis of quantum theory is confirmed by carrying out atomic and molecular beam experiments 1925 Ulhenbeck & Goudsmith Discovered the concept of spinning…

    Words: 1508 - Pages: 7
  • Bovine Hydrochloric Acid Solution

    values obtained from the spectroscopy apparatus. These concentrations were calculated using the equation of the line produce with the values of the concentration (x-axis) and corresponding absorbance (y-axis) of five protein bovine gamma globulin standard solutions. In order to prepare each of these standards within a range of 50 microliters to 1200 microliters and using a provided stock solution of 1.46 mg/mL of the protein bovine gamma globulin (IgG) different calculations were performed in…

    Words: 1188 - Pages: 5
  • Spectrophotometry Essay

    or characterized by the use of electromagnetic radiation. Electromagnetic radiation not only includes light (or photons), but thermal energy as well. While the electromagnetic spectrum consists of wavelengths between gamma radiation and the Far IR, most spectrophotometric methods rely on the UV and visible region. In order to use spectrophotometric methods, the sample being analyzed must be able to absorb the energy (photon) used to excite the sample. UV-Vis and other optical instruments measure…

    Words: 1325 - Pages: 6
  • Anionic Dye Synthesis Lab Report

    Abstract In this paper CuO-NH-NH2 nanoparticle was synthesized and used to remove anionic dyes from single and binary systems. The scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), Energy-dispersive X-ray spectroscopy (EDAX) and X-ray diffraction (XRD) were used to characterize the nanoparticle. Direct Red 80 (DR80) and Direct Green 6 (DG6) were used as anionic dyes. The effect of adsorbent dosage, dye concentration and pH on dye removal was evaluated. Kinetic…

    Words: 1199 - Pages: 5
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