Date:7.6.2013 Objectives: Part 1: (i)To learn the technique of TLC and the visualization of colourless components. (ii)Identify the unknown drug by a TCL comparison with standard components. Part2 :to learn the separation technique by using TLC plate in separating a mixture of compound by using spinach leaf. Apparatus:UV lamp‚capillary ‚250 ML beaker Materials:aspirin‚acetaminophen‚caffeine‚unknown A‚unknown B‚TLC plates‚ethyl acetate‚Hexane‚acetic acid‚iodine Introduction: Procedure:
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Discussion Using the Thin Layer Chromatography experiment‚ caffeine was found to be the most polar due to the fact that it stayed closer to the stationary phase. Caffeine contains four amine groups that are extremely polar as a result of the hydrogen bond and amide functional group. Acetaminophen was found to be the second most polar analgesic drug tested. Acetaminophen contains a polar alcohol group on one side and amide group on the other but also includes non-polar functional groups that consisted
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Organizational Culture can be one of the most important means of improving organizational performance. Organizational Culture has become very important in the last 25 years. Even though it is intangible in nature‚ it plays a role that is significant and affects employees and organizational operations. It may not guarantee success but companies with strong cultures have almost always‚ done better than their competition. What is organizational culture? Edgar Schein‚ a very well known scholar
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What determines culture? Discuss and use examples. Culture is the way of thinking and doing things that are passed on from one generation to another such as language‚ norms and values of society. It is the total pattern of human behavior which creates human beings and human societies. Culture is cumulative‚ by slow accumulation over many generations; culture is the product of human societies and of the individuals who compose them. Culture holds society together. It is the way of life that people
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INTRODUCTION Above Creative Events (M) Sdn Bhd (ACE) was chosen as our research company. In this report‚ we will determine the organizational communication practices in ACE from management point of view and analyze its effectiveness. ACE is a one-stop events management company in Malaysia. ACE provides services in three main areas which are events management‚ artist management and destination management. Their services include whole events planning‚ decoration of stage and the venue‚ equipment
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The 7 Layers of the OSI Model Last updated: March 03‚ 2008 The OSI‚ or Open System Interconnection‚ model defines a networking framework for implementing protocols in seven layers. Control is passed from one layer to the next‚ starting at the application layer in one station and proceeding to the bottom layer‚ over the channel to the next station and back up the hierarchy. |Application |This layer supports application and end-user processes. Communication partners
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A Glance at the Session Layer of the OSI Model Throughout the history of networking‚ one model has stood the test of time for providing not only insight‚ but also a foundation by which all networking systems utilize in some form or fashion. The seven layers of the OSI model‚ which stands for Open System Interconnect‚ are: Application‚ Presentation‚ Session‚ Transport‚ Network‚ Data link‚ and Physical. These layers are the framework for networking‚ because they represent the roadmap‚ rules‚ and
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Layer 2 Domains Paper Layer 2 Domains Paper We have chosen an extended star topology connection using a router to designate the VLANS and two 24 port switches to provide the most cost effective setup for this small office network. Being the very small nature of the setup we are using a class C network of 192.168.0.1 that we will designate the first 20 IP addresses of each VLAN as static to support any servers we might install as well as printers we may install in the future. The other
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ROLE OF YOUTH IN OZONE LAYER PROTECTION Ozone layer plays a vital role in protecting animals‚ human beings and plants from ultraviolet radiation. Ozone layer is destroyed by a group of manufactured or human made chemicals such as chlorine bromine. These chemicals are called "ozone-depleting substances". Ozone layer is destroyed by some natural’s ways and some humane made activities. A single molecule of chlorine can break apart thousands of molecules of ozone. Chlorofluorocarbons the most widely
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Slavery was a part of the American culture for over two hundred years. African-Americans were not considered equal to whites‚ thus leading whites to use them for work. Anyone with darker skin than white was used as a slave. Slaves were used from the early 1600s to the late 1800s in the United States. The most common area and most talked about time for enslavement was in the southern part of the United States in the late 1700s and early 1800s when the north portion of America banned slavery.
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