Spearmint and Caraway Oils: (+)- and (-) – Carvones Purpose Compare (+)- carvone from caraway oil to (-)- carvone from spearmint oil‚ using gas chromatography. Experimental Odor: Smell containers of spearmint and caraway oil and two carvones. Analytical Gas Chromatography: Put five individual samples by different group members into Gas Chromatograph to calculate the percent composition. Claudia tested S- (+)- carvone and R- (+) – Limonene‚ Daniel tested Spearmint oil (pure)‚ Greg tested R-
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Bromobenzene 155-156 -30.8 1.50 Insoluble Dibromobenzene 220.40 87.31 0.96 Insoluble MATERIALS: Graduated cylinder Weight scale Buchner funnel Filter flask Rubber stopper Hot plate Thermometer Conical funnel Various size beakers Fractionating column (for reflux) Various sized round bottom flasks Distillation head Condenser Vacuum adapter Clamps and stands Test tubes PROCEDURE: Pre Lab: The experiment should be carried out AWAY from the sunlight. Before beginning the experiment
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TITLE Crime and Dye Lab Special Projects 1 Martin Enem LAB SECTION: BB2 INTRODUCTION Light is usually viewed as a result of the heating of a substance. The higher the temperature at which the substance is heated‚ the greater the vibrations that lead to certain light intensity given off by the molecule. It is this same theory that suggests why steel glows red hot when heated to high enough temperatures. The process of light emissions can also be induces through other means. 1 One
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A SEMINAR ON “SYNTHESIS OF LOW COST ADHESIVES FROM PULP & PAPER INDUSTRY WASTE” For the partial fulfillment of degree of Bachelor of Technology Submitted by DINESH G. TEMBHURNE (20090557) Under the guidance of MISS. NAZLI GITE. DEPARTMENT OF PETROCHEMICAL ENGINEERING DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY‚ LONERE (RAIGAD) - 402 103 2010-2011 DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY LONERE - 402 103‚ TAL – MANGAON
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uses a column that allows many small distillations to occur as the vapor ascends the fractional distillation column. Purpose: In this experiment we aim to demonstrate that we can separate two volatile compounds from a mixture due to the different chemical properties of each compound. We will accomplish this by a separation procedure known as distillation‚ which relies on each compound having a distinct and separate boiling point. Our pure products will be analyzed with gas chromatography to determine
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solid phase extraction cartridges (PGC)‚ e.g. Thermo Hypersil keystone Hypersep Hypercarb 200 mg‚ 3 ml cartridges‚ from Thermo Hypersil Keystone‚ UK (b) C18 solid phase extraction cartridges‚ e.g. Isolute C18(EC) solid phase extraction columns‚ size 1 g sorbent in 6 ml reservoir from Argonaut Technologies‚ Mid Glamorgan‚ UK (c) Glass-fibre filters (e.g. Whatman GF/C)‚ diameter 25-70mm (d) Argon or nitrogen‚ >99.99% (e) Borosilicate test tubes or vials‚ >3 ml capacity
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CHAPTER ONE 1.0 INTRODUCTION 1.1 Antimycobacterial Studies An Antimycobaterial is a substance that kills or inhibits the growth and activities of disease causing Mycobacteria (e.g.‚ Mycobacterium tuberculosis‚ Mycobacterium Leprae‚ etc) that are responsible for fatal diseases such as Tuberculosis and leprosy. Antimicrobacterials can either kill microbes (microbiocidal) or prevent the growth of microbes (microbiostatic) (Hannan et al.‚ 2011). Mycobacterium is a genius in the family of the Mycobacteriaceae
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NOTES AND COMMENT 343 DETERMINATION OF CHLOROPHYLL AND PHEO-PIGMENTS : SPECTROPHOTOMETRIC EQUATIONS~ It has been shown that chlorophyll degradation products may at times constitute a significant fraction of the total green pigments present in seawater (Yentsch and Menzel 1963; Lorenzen 1965; Yentsch 1965). These degraded forms‚ or inactive chlorophyll‚ absorb light in the red part of the spectrum; if they are present in concentrations significant relative to chlorophyll a‚ a serious error
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reaction‚ Gas Chromatography is used to analyze the composition of the product mixture. IR spectrometry is also carried out to confirm the product. Procedure This experiment was carried out as described in Class Pak. The heat source power was set to 3 for fractional distillation and to 2 for simple distillation. For both processes‚ aluminum foil was wrapped around the heat source and flask to trap the heat and speed up the process. Results Injection Port Temperature 200 Column Temperature
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by means of Anion-Exchange Chromatography. Carbohydrates are weak acids with pKa values ranging between 12 and 14. At high pH they will be either completely or partially ionised depending on their pKa value. Due to the extreme alkaline conditions only polymeric anionexchange columns are suitable for
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