3. RESULTS AND DISCUSSION 3.1. Powder X-Ray diffraction analysis The grown Cd doped LSMH crystal were subjected to powder X-ray diffraction studies using a Rich Seifert X-ray diffractometer employing CuKα (1.54058 Å) radiation‚ scanning angle ranging from 10° to 70° at a scan rate 1°/min to confirm the crystalline phase of the grown crystal. Fig 2 shows the X-ray powder diffraction patterns of pure as well as Cd doped LSMH single crystals. The obtained (h k l) values are indexed using the JCPDS
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2a: Infrared Spectroscopy and Analgesic Drug Identification Abstract: To be able to understand how organic soluble compounds could be isolated from non-organic components‚ a chromatographic separation process was used. The objective of the analgesic drug identification is to isolate the organic compounds/ active ingredients in an unknown drug. The identity of the drug was determined through melting point‚ percent recover‚ and Rf values. The comparable data for acetaminophen from the manufacturer
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Absorption Spectroscopy Author: Lab Partners: Instructor: Chem 152 Date Work Performed: Date Work Submitted: Abstract A Beer’s Law analysis was used to determine the molar absorptivity of a Red-40 food dye. Using a spectrometer‚ the best wavelength to use for the analysis of this dye was determined to be 501nm. A series of dilutions were performed and the concentrations were calculated to find ‘E‚’ the molar absorptivity‚ which was determined to be 18035 M-1 cm-1. Introduction
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Passive infrared sensor A passive infrared sensor (PIR Sensor) is an electronic sensor that measures infrared light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. Operating principle All objects with a temperature above absolute zero emit heat energy in the form of radiation. Usually this radiation is invisible to the human eye because it radiates at infrared wavelengths‚ but it can be detected by electronic devices designed for such a purpose
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References: A chapter from a book: Francis Rouessac and Annick Rouessac. Chemical Analysis: Modern Instrumentation Methods and Techniques 2nd edition. John Wiley & Sons. Ltd; 2007. Chapter 9‚ Ultraviolet and visible absorption spectroscopy; p.181-186 A chapter from a textbook: G H Jeffery‚ J Bassette‚ J Mendham‚ R C Denny. Vogel ’s Textbook of Quantitative Chemical Analysis 5th edition. Longman Scientific and Technical; 1989. Chapter 17‚ colorimetry and spectrophotometry; p. 645-651
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TXTILE DYEING AND FINISHING for fabrics. So I sort out the details for that. Pls look up as following: PART Ⅰ.TXTILE DYEING AND FINISHING FOR FABRICS The main production: Gas-infrared pre-drying machine. Stereotypes machine. The curing machine. ∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽∽ GAS-FIRED INFRARED
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the same organic solid based on the melting point data. Then with all possible matches students performed mixed melting point and the TLC experiment to find if they have the same retention factor (Rf). At the end of the lab students recorded the infrared spectrum (IR) of an organic compound by using FT-IR spectrometer. After the lab period a H NMR spectrum was given by TA. The data that was collected during the lab helped to provide the information for the questions in the lab manual: IR and NMR
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CC Bright red blood per rectum. Sinus pressure‚ sore throat. S The patient is a 62-year-old female who tells me that about a week ago she noticed bright red blood per rectum. She states she had a fairly normal stool‚ which was brown in color followed by drops of bright red blood into the toilet. She is quite certain this came from her rectum and not her vagina. She states the next day there was even a little bit more blood‚ and the third day continued. She then had several days where she did
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Qualitative Analysis Lab Report Organic Chemistry Laboratory II ABSTRACT: The purpose of this lab was to separate and purify two unknown compounds‚ one solid and one liquid‚ from an ethereal solution using the techniques of chemically active extraction‚ vacuum filtration‚ simple distillation‚ and recrystallization. Then identifying information was compiled about these unknowns by obtaining experimental melting/boiling point ranges‚ and analyzing IR and proton/carbon NMR spectrums It was determined
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8. Terfenedine is an amino diol that is the active ingredient in the antihistamine Seldane. Mass spectral analysis of terfenedine shows a molecular ion at m/z = 471 and a peak at m/z = 472 which is 35.5% the height of the molecular ion. Terfenedine is known to contain C‚ H‚ O and N. (a) Suggest five molecular formulas for terfenedine. (b) Terfenedine has an even number of carbons and contains nine double bonds and four rings. Based on this additional information‚ what is the formula for terfenedine
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