Bacterial Smears Are Fixed before Staining to? Answer It is important to heat fix the bacterial smear before staining so as to‚ kill the bacteria‚ firmly adhere the smear on to the microscopic slide to prevent washing off during staining‚ and to allow the sample to readily take up the stain. Reference: www2.hendrix.edu What is the purpose of heat- fixing the smear? It helps the cells adhere to the slide so that they can be stained. The purpose of heat fixing is to kill the organisms without
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This project would not have existed today if it had not been for the following persons that I would like to thank: ← My family‚ teachers‚ friends‚ and anyone who have contributed to the success of this project. ← The management and staff of Methanol Holdings (Trinidad) Limited (MHTL) for their valuable contribution by providing the necessary data as received. ← My mentor‚ Mr. Derryck Dhanoosingh‚ for his dedication‚ time and advice given throughout the project. ← Most importantly God
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and compressed. Liquid hydrogen is very‚ very cold--more than 423.2 degrees Fahrenheit below zero. Another way to get hydrogen to the fuel cell is to use a "reformer". A reformer is a device that removes the hydrogen from hydrocarbon fuels‚ like methanol or gasoline. When a fuel other than hydrogen is used‚ the fuel cell is no longer zero-emission‚ but it still may be very low emitting. Major parts of a fuel cell The anode‚ the negative post of the fuel cell‚ has several jobs. It conducts the
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mechanism for product. Procedure: Schoffstall‚ A.M.‚ Faddis‚ B.A.‚ and Durelinger‚ M.L. Microscale and Miniscale Organic Chemistry Laboratory Experiments‚ 2nd Ed.‚ McGraw-Hill‚ 2004‚ pages 215-218. Experiment 12.2 A Changes: Part A- No methanol recrystallization. Results and Observations * all literature values were obtained at www.sigmaaldrich.com Chemical Volume (mL) Mass (g) Density (g/mL) Molecular Weight (g/mol) Methyl-3-nitrobenzoate
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Gas Chromatography: Purifying alcohol Introduction The goal of this lab is to understand the principles of chromatography by purifying alcohol using fractional distillation. Running standards with gas chromatography we were able to see and calibrate our data to find not only how much ethanol our alcohol attained but also what a mixed unknown sample contained. Chromatography is a way of being able to separate substances in solution that can help not only identify the analytes (the studied
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2.1 Synthesis of p-Toulichydrazone and Resacetophenone Schiff base (RAPPTH): p-Toluic hydrazide (1.5018g) and Resacetophenone (2‚4Dihydroxyacetophenone)(1.5215g) were dissolved in methanol and Refluxed in the presence of few drops of acetic acid for 7 hours on water bath with constant stirring. The resultant mixture was transferred in a china dish and allowed to cool naturally. Light brown crystals were obtained. The compound was recrystalized from water. The % of yield was 80%
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Objectives of the Study This study evaluates the genotoxicity‚ and teratogenicity/antiteratogenicity of the methanol leaf extracts of Tamarindus indica (TE). In particular‚ the study aims to: determine the genotoxicity of TE in terms of: mitotic index chromosomal aberrations micronuclei formation assess the developmental toxicity and teratogenicity potential of TE to zebrafish embryos; and verify the potential of TE to rescue zebrafish embryos from ethanol-induced teratogenicity. Place and
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LAB. MANUAL 16 MANUAL OF METHODS AF T OF ANALYSIS OF FOODS D R ALCOHOLIC BEVERAGES FOOD SAFETY AND STANDARDS AUTHORITY OF INDIA MINISTRY OF HEALTH AND FAMILY WELFARE GOVERNMENT OF INDIA NEW DELHI 2012 ALCOHOLIC BEVERAGES MANUAL FOR ANALYSIS OF ALCOHOLIC BEVERAGES TABLE OF CONTENTS PAGE NO. 1 2 5 6 8 9 10 15 17 19 22 27 30 AF T METHOD Types of Alcoholic Beverages Determination of Ethyl alcohol content Determination of Residue on evaporation
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different approaches to health education For my health education campaign I have chosen to teach my listeners about sweeteners that are replacing sugar‚ such as Aspartame. Aspartame is made up of three chemicals: Aspartic acid‚ phenylalanine‚ and methanol. NutraSweet‚ Equal‚ Spoonful‚ and Equal-Measure‚ all of these are brand names for aspartame‚ the most popular low-calorie sugar substitute used in more than 90 countries to sweeten foods and beverages. According to aspartame information its use
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A potential renewable energy resource development and utilization of biomass energy Abstract I. Introduction II. Biomass resource and its energy value III. Utilization of biomass IV. Prospect of biomass utilization Wang Mengjie & Ding Suzhen Chinese Academy of Agricultural Engineering Research & Planning Beijing‚ P.R. China. Paper No.9408 Abstract One seventh of total energy consumption is from biomass which is the main energy resource for over 1.5 billion people in the world
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