Title: Thin-Layer Chromatography Objectives: Part1: 1. To learn the technique of TLC and the visualization of colourless components. 2. To identify an unknown drug by a TLC comparison with standard compounds. Part 2: To learn the separation technique by using Thin Layer Chromatography plate in separating a mixture of compounds into individual pure compound by using Spinach Leaf. Introduction: (i) General Concepts Chromatography is a common and powerful method used to separate and analyze complex
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science fiction novel or a video game. Yet‚ that is what some researchers at NASA did a few years ago. Atmospheric physicists Paul Newman and Luke Oman built a simulation of the Earth’s atmosphere and then proceeded to strip away our protective ozone layer. Their computer model reproduced the chemistry and circulation of the air; natural variations in temperatures and winds; and minor changes in the energy received from the sun. Newman and Oman then added ozone-destroying chemicals to the atmosphere
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Christine Snyder The atmospheric issue that I chose to write about is the Ozone layer depletion and the indoor air pollutant is Volatile Organic Compounds. I am going to talk about the cause and effect of each of these issues and also efforts to mitigate the issues. Our Earth’s Ozone layer protects all life from the sun’s harmful radiation. Due to all human activities damage has been done to our Ozone layer thus‚ causing harmful ray’s to enter and expose people to higher levels of Ultra Violet
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the unit of data sent or received at each of the following layers? a. application layer:Message b. network layer:Datagram c. data-link layer:Frame Q2-12) When we say that the transport layer multiplexes and demultiplexes application layer messages‚ do we mean that a transport-layer protocol can combine several messages from the application layer in one packet? Explain. The TCP/IP protocol suite uses several protocols at some layers‚ we can say that we have multiplexing at the source and demultiplexing
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Eco-Column Lab Write up Alicia Whiteley Block 4 Abstract: In this research and experiment we were testing whether or not we can maintain a healthy eco-system based off creating one from scratch. We initially went into this experiment confident that we were going to be able to keep our fish alive which was proven wrong mid-way through due to high levels of turbidity and the state of the fish. After collecting all of our data‚ we maintained a healthy terrestrial level and a good PH
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The self-portrait The Broken Column was painted by Frida Kahlo in 1944. This work is oil on canvas‚ mounted on masonite‚ and it is 40 x 30.7 cm. The Broken Column is at Museo Dolores Olmedo in Mexico. This painting is one of Kahlo’s most famous iconic self-portraits which represents feminism in its time‚ for it shatters the traditional idealized image of women through it subject matter‚ depiction of female beauty and symbolism. This life-size painting has a horizontal perspective
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circuit. 6. UTP cables can have up to eight wires inside the cables. Which of the following is the most likely reason why EMI from one wire does not affect the electrical behavior of another wire inside the same cable? B. Twisting the pairs together. 7. Which of the following facts are in common between both of the
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HOUSING REQUIREMENTS FOR CHICKEN - LAYER LPM605- SHELTER MANAGEMENT PRASOON 10/11/2011 Contents Essentials of Good Housing: 3 Location of Poultry House: 3 Housing requirements: 4 Poultry housing systems: 7 Styles of Poultry Houses: 11 House Construction: 11 Housing requirements for layer birds Poultry is housed for comfort protection‚ efficient production and convenience of the poultry man. Essentials of Good Housing: Comfort: The best egg production is secured
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Thin-Layer Chromatography of Analgesics Abstract: In this experiment thin-layer chromatography (TLC) was used to determine the composition of an unknown mixture of analgesics given five references of AC‚ ASP‚ CAF‚ IBU‚ SAL‚ an unknown consisting of a mixture of three of the references‚ and two unknowns (6‚23) containing a single reference compound. The composition of the unknown mixture and two single unknowns were determined by spotting the reference compounds and the unknown compounds on two
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Q 4. What are the four layers of documents of ISO 9000? Please explain the purpose of each layer of document and their interelationship ISO 9000 emphasis on document control as it could act as a means of communication‚ define and clarify quality activities‚ rationalize the work of quality assurance‚ facilitate quality control‚ provide a base for system audit‚ and as teaching materials. While the above benefit bases on 4 types of documents‚ according to ISO9001: 2008‚ 4.2.1‚ the quality management
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