the infrared imaging technique. For the printing technique called thermography. Thermogram of a traditional building in the background and a "passive house" in the foreground Infrared thermography (IRT)‚ thermal imaging‚ and thermal video are examples of infrared imaging science. Thermal imaging cameras detect radiation in the infrared range of the electromagnetic spectrum (roughly 9‚000–14‚000 nanometers or 9–14 µm) and produce images of that radiation‚ called thermograms. Since infrared radiation
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Name CH 204 DateExperiment 3: Atomic Spectroscopy Introduction The purpose of the atomic spectroscopy lab experiment was to investigate the relationship between visible light‚ which is the visibly observable range of electromagnetic radiation and the change in energy levels of an element. The line spectrum that was seen in the spectroscope was the evidence of excited atoms emitting electrons and radiating a spectrum of light as it moved from a higher energy state back down to a lower energy level
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Atomic Spectroscopy using a Constant Deviation Spectrometer with Fabry-Perot Etalon Abstract A constant deviation spectrometer with Fabry-Perot etalon has been used to investigate the various atomic emission characteristics from a Zn-Cd-Hg lamp‚ a low pressure Hg lamp and a Ne lamp. The Fabry-Perot etalon of Free Spectral Range 0.010 cm-1 was used to resolve the fringes of the Hg 546.0731nm spectral line‚ and the 594.4834nm‚ 614.3063nm‚ 640.2246nm and 650.6528nm spectral lines of the Ne lamp
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Electron Spin Nuclear Magnetic Resonance (NMR) Spectroscopy Organic Chemistry BCH3015 • Electron spin is quantized. • The spin quantum number ms has only two allowed values: ms = +½ or –½ • The two directions of spin create oppositely spin create oppositely directed magnetic fields. fields. 61 Proton Spin Organic Chemistry BCH3015 62 Nuclear Spin States • A proton (the nucleus of a 1H atom) also possesses spin. For each nucleus having the spin quantum number
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EXPERIMENT 2 : UV-VISIBLE DETERMINATION OF AN UNKNOWN CONCENTRATION OF KMnO4 OBJECTIVE 1. To determine the maximum wavelength of potassium permanganate. 2. To plot the calibration curve of potassium permanganate. 3. To determine the concentration of an unknown solution of potassium permanganate. APPARATUS Beaker‚ burette‚ glass rod ‚volumetric flask 100ml ‚dropper CHEMICALS Potassium permanganate (KMnO4)‚ distilled water PROCEDURE A. Preparation of the KMnO4 standard solution
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2.7 Raman spectroscopy Principle: Raman spectroscopy is based on the use of a laser light to induce oscillation and rotation in human fluids containing glucose. Because the emission of scattered light is influenced by molecular vibration‚ it is possible to estimate glucose concentration in human fluids [24]. This effect depends on the concentration of the glucose molecules. This technique can measure very weak signals‚ even in human fluids. The wavelength range of Raman spectrum is considered to
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References: [1]Andreescu‚ D. CHEM 223 Spectroscopy Laboratory Fall 2013 Edition; 2013; pp 77-82 [2] Swain‚ J. The Boston Globe‚ 2010. http://www.boston.com/business/articles/2010/03/01/ what_is_tonic_water/ Accessed 10/29/2013
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DATE: 21-01-14 ANALYSIS OF COPPER IN BRASS BY UV – VISIBLE SPECTROSCOPY AIMS/OBJECTIVES; To determine the percentage of copper in brass by UV-visible spectroscopy. INTRODUCTION Electromagnetic radiation‚ of which ultraviolet and visible light are but two examples‚ has properties of both waves and particles
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Absorption Spectroscopy Author: Cesar M. Lemas Lab Partners: Jahnnan Jayesh Patel‚ Myong Ho Lee & Salem Alsaif Instructor: Jordan Andrew Mudery Chem 151‚ Section 7D Date Work Performed: October 18th 2012 Date Report submitted: October 25th 2012 Abstract Absorption spectroscopy is a practical way to find what the light absorption of a substance is‚ and whit this data combining the Beer’s law equation you can determine the concentration of different things in a solution‚ in
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Introduction: The purpose of this lab was to learn how to use a spectrophotometer to measure the amount of light absorbed by different concentrations of salicylic acid‚ compare those concentrations to our unknown sample and to use the data collected to compile a graph showing the levels of absorbance of the different concentrations. Methods and materials: In this lab we used a spectrophotometer‚ a test tube filled with water to be used as a blank‚ six test tubes with different concentrations
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