Chemistry Department Western Illinois University In Partial Fulfillment of the Requirements for the Degree Master of Science By Prashanth Goud Kunuru September 2013 This thesis follows the style and format of the Journal of Analytical Chemistry ABSTRACT Pesticides are chemicals, artificial or natural substances, used for pest control. They have negative influence on human health when accumulated in the body. Numerous studies have clearly linked pesticides exposures to various
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This experiment will separate the components of a mixture on the basis of their differing absorptive tendencies on a stationary phase, which is the method of chromatography. The mobile phase will consist of four distinct transition metal cations dissolved in an acetone-hydrochloric acid eluent, along with three unknown solutions; the identities of these will be determined based on a comparison of the Rf value of these to the known cations. First to be prepared was the stationary phase, or chromatographic
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Gunshot Residue Analysis You are provided with cotton balls that were used to swab 2 suspect’s hands for the presence of gunshot residue. Determine, by atomic absorption spectroscopy, if either of the 2 have fired a gun recently. To do this you will first extract the lead residue off of the cotton ball and then you will run the lead samples and a lead positive sample and a blank to determine if there is lead in the residue from the suspect’s hands. Extraction/Sample Prep: 1.) Use tweezers or forceps
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Representing Repression: A Psychological Reading of Menagerie Shih Ching-liang The Glass As the tradition of realism dominated in the late 19th century, expressionism emerged along with the rise of psychology at the very end of the century Expressionistic plays sought to give not the external reality or surface appearance of life but the inner reality, life as felt rather than as seen (Barnet 519). The Glass Menagerie is mostly expressionistic: the first sentence of the Production Notes declares
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Statement of Goals The goal of the group project was to calculate the percent calcium in a natural calcium tablet from Prime Eastern Pharmaceuticals in order to compare it with the reported amount of 800 mg of calcium per tablet to determine the validity of complaints regarding a reduced amount of mineral in the multivitamin. The quantitative determination of the analyte was accomplished through three experiments: complexometric titrimetry, flame atomic absorption analysis, and potentiometry using
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Chromatography is commonly used to separate mixtures to determine different chemical components. The main types of chromatography include gas, thin layer, paper and column chromatography. Generally used most, paper has a stationery phase and a mobile phase in a chromatographical experiment. The stationery phase is the paper itself absorbing the solvent, while the mobile phase is the solute moving up the strip of paper. Solvents are solids, liquids or gasses that dissolve the solute, in this instance
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Maria Vasilenko 223901 Feasibility of using biosensors for heavy metal detection in complex matrices such as bio-slurries. Master of Science Thesis Examiners: Professor Matti Karp Professor Raghida Lepistö Examiner and topic approved in The Science and Bioengineering Department Council meeting on 7.11.2012 Abstract TAMPERE UNIVERSITY OF TECHNOLOGY Master‟s Degree Programme in Science and Bioengineering Vasilenko Maria: Feasibility of using biosensors for heavy metal detection in complex
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considered individuation, a psychological process of integrating the opposites including the conscious with the unconscious while still maintaining their relative autonomy, necessary for a person to become whole. Individuation is the central concept of analytical psychology. ANIMUS: Animus is the archetype of reason and spirits in women. This is the male aspect of the female psyche, as the anima is the female aspect of male psyche. This archetype is projected in various male images and characters like
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Based on my observation, marijuana leaves exhibits a warty appearance due to the presence of non glandular hairs which at their base contains a spheriodal cystollith of calcium carbonate while on the other sample of marijuana seeds I observed the lacy and hair like. During the Chemical Test of the Fast Blue Salt or FBS Test on the Marijuana seeds, hashish cake and hashish candy I observed that there was a reaction on the test conducted due to the appearance of purple color or violet
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ANALYTICAL BIOCHEMISTRY Analytical Biochemistry 334 (2004) 196–198 www.elsevier.com/locate/yabio Notes & Tips A spectrophotometric assay for the quantiWcation of polyethylenimine in DNA nanoparticles Martin Bertschinger, Sophie Chaboche, Martin Jordan¤, Florian M. Wurm Swiss Federal Institute of Technology Lausanne, Laboratory of Cellular Biotechnology, Lausanne VD1015, Switzerland Received 29 April 2004 Available online 28 August 2004 Since the Wrst description of polyethylenimine (PEI)1
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