chaos of the trial was a computer search that had stated Casey was searching on Google about “Chloroform (Casey Anthony Trial‚ 2011).” Casey had claimed that her pet was eating some plants in the backyard and for the pets health she was searching “chlorophyll” on the home computer (Casey Anthony Trial‚ 2011). This cause much confusion because at first the evidence had reported Casey searching for chloroform for exactly 84 times by using some forensic software called CacheBack (Alvarez‚ 2011). CacheBack
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Preparation of the propolis extracts: the propolis sample of the Brazilian native bee species Melipona quadrifasciata was obtained in May‚ 2013 in the city of Blumenau‚ SC‚ Brazil (26 ° 54’21.3 "S 49 ° 04’49.1 "W). In order to obtain a hydroalcoholic crude extract (HCE)‚ 284.3 grams of propolis were pulverized and macerated in 70% ethanol (m m-1)‚ left in a dark chamber for 7 days at room temperature‚ filtered in vacuum and taken to complete drying in a rotary evaporator with reduced pressure. In
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"anesthesia." The Greenhaven Encyclopedia of Capital Punishment. Bruce E.R. Thompson. Ed. Mary Jo Poole. Detroit: Greenhaven Press‚ 2006. 21. U.S. History In Context. Web. 18 May 2013. In 1846 surgeons began using anesthesia in the forms of ether and chloroform to render patients unconscious prior to surgery. Almost immediately some people began advocating the use of anesthesia in executions as well. An essay to that effect written by G.W. Peck appeared in the American Whig Review in 1848. In that article
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Objectives After studying this Unit‚ you will be able to • name haloalkanes and haloarenes according to the IUPAC system of nomenclature from their given structures; • describe the reactions involved in the preparation of haloalkanes and haloarenes and understand various reactions that they undergo; • correlate the structures of haloalkanes and haloarenes with various types of reactions; • use stereochemistry as a tool for understanding the reaction mechanism; • appreciate the applications of organo-metallic
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lipids are not polymeric. However‚ they do aggregate‚ and it is in this state that they perform their central function as the structural matrix of biological membranes. Substances of biological origin those are soluble in organic solvents such as chloroform and methanol. Hence‚ they are easily separated from other biological materials by extraction into organic solvents (Voet‚ D.‚ Voet‚ J.G.‚ Pratt‚ C.W. 2012). Lipids can be categorized to two classes depending on the presence of phosphate. Firstly
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Before Surgery in the early 19th century is dangerous and painful. There is no way to relieve the pain felt by patients during operations. Surgeons do not yet know how to control blood loss or infection‚ and operating theatres are dirty and dangerous places to be.Some surgeons superstitiously prefer to wear their ‘lucky’ coat in the operating theatre – a coat worn during a successful operation in the past. They do not wash their ‘lucky’ coat between operations in case this breaks their run of
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The Anthelmintic Property of Methanolic and Ethanolic extract of the Kulitis leaves (Amaranthus viridis) Chapter 1 Introduction The World Health Organization estimates that a staggering two billion people harbor parasitic worm infections. Parasitic worm also infect livestock and crops‚ affecting food production with a resultant economic impact. Despite this pevelance of parasitic infections‚ the research o the Anthelmintic drug is sparse. According to the WHO‚ only a
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Acetaminophen[NCBI‚ 2009] One of the technique involved in the extraction of codeine and paracetamol from its matrix‚ is the solvent extraction otherwise known as liquid – liquid extraction. This process entails the use of two immiscible liquids usually chloroform and water; in dissolving the sample for two distinctive layers to form after the mixture had been thoroughly shaken together (Rubinson and Rubinson‚ 1998). Separating the components of the extract‚ is done through the use of Thin Layer Chromatography
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A THEORITICAL STUDY ON REMOVAL AND RECOVERY OF VOLATILE ORGANIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY PERVAPORATION JAGADEESH KUMAR. Y *a‚ NAGA KUMAR. Vb. *a III/IV B.Tech chemical engineering‚ R.V.R & J.C College of engineering‚ GUNTUR. E-mail: abhi.chemico@gmail.com. bIII/IV B.Tech chemical engineering‚ R.V.R & J.C College of engineering‚ GUNTUR. E-mail: naga.vootla@gmail.com. ABSTRACT Strategies for
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Objective: The objective of the lab is to separate the caffeine samples we are using‚ using thin layer chromatography. The solvent we are using for the separation is 3:1 mixture of Chloroform and Acetone. Principle: Thin layer chromatography (TLC) is an important technique that is useful for separating organic compounds. TLC is often used to monitor the progress of organic reactions and to check the purity of products. Separations in Thin layer chromatography involve distributing a mixture of
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