Archana A. Bele et al. IRJP 2011‚ 2 (12)‚ 56-60 INTERNATIONAL RESEARCH JOURNAL OF PHARMACY Available online www.irjponline.com ISSN 2230 – 8407 Review Article STANDARDIZATION OF HERBAL DRUGS: AN OVERVIEW Archana A. Bele*‚ Anubha Khale H.K College of Pharmacy‚ Jogeshwari (W)‚ M.S.‚ India Article Received on: 19/10/11 Revised on: 22/11/11 Approved for publication: 13/12/11 *Email: scientific.cell@hkcollege.ac.in ABSTRACT Herbal drugs have been used since ancient times as medicines
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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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ABSTRACT: The electrophilic aromatic substitution reaction is the attack of a benzene ring on an electrophilic species resulting in the substitution of a proton with a functional group. The electrophilic aromatic substitution reaction nitration is used to nitrate methyl benzoate and acetanilide with a nitronium ion. Crystallization was used to purify the product. The melting point was used to determine its purity and the regiochemistry of the products. The methyl benzoate reaction product‚ methyl
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Abstract: Experiment 55 consists of devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction‚ solubility‚ crystallization and vacuum filtration. The experiment was carried out two times‚ both of which were successful. Background Information: This experiment combined all the knowledge of the previous labs performed throughout the semester. An unknown mixture containing
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Chemistry 1211 Prof. Dan Schwartz Exam #2 Thursday‚ 3/13/2003 7:00 – 8:30 P.M. There is a single correct choice for each question. Answer all questions on the Scantron sheet by filling in the proper bubble with a #2 pencil. If you change an answer‚ erase the undesired mark thoroughly. Be sure to fill in the boxes for your student number‚ name and lab section; then correctly fill in the corresponding bubbles beneath them. A periodic table and other useful information are attached to the back
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Table Of Contents 1. Title 2. Legal and Environmental issues 3. State and Federal laws 4. U.S. energy needs 5. Frances position on Fracking 6. Summary Hydraulic Fracturing Is it safe‚ or are we just trying to save money‚ and produce jobs at the expense of the countries safety? This and many more question have been asked about Hydraulic Fracturing with this paper I hope to answer that question and give you some more insight to what is really going on “ fracking”. Not only
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PART I PHYSICS & CHEMISTRY EXAMPLE FOR DIFFERENT TYPES OF QUESTIONS Instruction: The Question cum answer booklet contains 39 questions including sub question of match the following and main questions. 1. Due to heavy traffic near the school the department of traffic police wants to install automatic traffic lights. This am be done by using the Principle of a) Raman effect b) Radiography c) Holography d) Photoelectric effect 2. Water is to be sterilized for drinking purpose without using any chemicals
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w assignment Introduction Corporate Social Responsibility issues in today’s modern day business environment are one of the most controversial topics affecting firm’s reputation when operating in any industries. This essay question will be looking at Environmental and CSR issues in the context of the film A Civil Action. Part A Environmental law is the important part of government regulation and it deals with pollution or contamination problems. In our case contamination is found within the walls
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Propargyl bromide (80 wt%. in toluene)‚ M11 (0.45 ml‚ 4 mmol) was added into the reaction mixture and stirred at 100 °C for 2 hours. The reaction mixture was cooled to room temperature‚ added small amount of THF‚ and solvent was removed in vacuo. The white solid was washed with DCM to
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For my science fair project‚ I figured out what solvent would work best to erase permanent marker. The solvents I tested were: lemon juice‚ vinegar‚ water‚ and rubbing alcohol. I tried each of these solvents on a permanent marker line on plastic‚ paper‚ fabric‚ and wood. In this research paper‚ I will be talking about what a permanent marker is‚ how they are made‚ why they work so well‚ what rubbing alcohol is and its common uses‚ what vinegar is and its common uses‚ what water is and why water is
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