COLUMN AND THIN LAYER CHROMATOGRAPHY Mark Paul P. Pastrana‚ Mariah Ericka M. Patawaran‚ Princess Juneire M. Peligro‚ Francisco Q. Pua III‚ Rose Anne L. Quyo and Janille P. Ragpa Group 8 2B Medical Technology Organic Chemistry Laboratory ABSTRACT The main objectives were to separate the colored components of malunggay leaves by means of column chromatography‚ as well as to determine the purity of the components using thin layer chromatography (TLC) and measure the Rf values of the colored
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Explaining the Differences Including Advantages and Disadvantages NTC/360 By Betsy Grissom Earl Sortor November 15‚ 2010 Introduction After reading this paper the reader should know how each of the terms works in a computer. The reader will also have knowledge of each terms advantages and disadvantages. Mesh Topology A mesh network has a very simple concept. Because of the simple concept a mesh network has fewer chances of breaking down the network. Many possible combinations
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model make it easier to understand? Another way of displaying information for easier understanding is to use a flow chart. A flow chart can be used as a step by step guide. 3.1.3 Based on what you already know about networks‚ what are the different layers you think would be necessary for communication to be mapped to a model? Consider direct connections between host devices and connections that require other routing equipment‚ such as a hub‚ switch‚ or router. 1. Data link 2. Physical 3. Application
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encryption to data in transit. Secure Socket Layer (SSL): SSL protocol is a cryptographic protocol used for establishing a secure communication channel between two entities (Martin‚ 2012). Secure socket layer operates at the transport layer of the internet protocol suite. Though SSL provides transport layer security‚ it site immediately above Transmission Control Protocol (TCP) in the protocol stack‚ therefore it can be said that the SSL provides session layer security in the OSI model (Kak‚ 2012).
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3.1.3 Computer Network Topologies Network Topology is a network specification that determines the network arrangement‚ connecting the senders and receivers through lines of connection. Topologies are of both physical and logical aspect of the network. The physical topology describes the network’s physical wiring layout or shape. The logical topology describes the path through which the data moves. Both logical and physical topologies could be same or different in a same network. The physical and
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OBJECTIVE The purpose of this experiment is to analyze mixtures of compounds prior to‚ during and after a separation scheme. This experiment also allows monitoring reactions of organic molecules‚ and determines the identity of a mixture of compounds. STRUCTURES AND PHYSICAL PROPERTIES OF REACTANTS [1] SOLVENTS | a. Hexane1Molecular Molarity: 86.18 g/molBoiling Point: 69 ºCMelting Point: -95ºCDensity: 0.659 g/mL at 25ºCWater Solubility: Insoluble in waterColor/Texture: Colorless/LiquidHazardous
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standards that apply to multiple countries. 5. Which of the following are true about the commonly used version of the TCP/IP model as shown in this chapter? (Choose two answers.) Answer: C. The physical layer sits just below the data link layer. D. The physical layer sits just below the data link layer. 6. The TCP/IP model refers to standards other than those the IETF defines in RFCs. Which of these standards groups is typically the source of external LAN standards? (Choose two answers.) Answer:
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standards‚ but are used in common practice to reduce the power of devices in both WLANs and WPANs. These techniques exist from the application layer all the way down to the physical layer of a traditional networking protocol stack. Techniques specific to a particular type of network are annotated as appropriate. Application Layer At the application layer a number of different techniques can be used to reduce the power consumed by a wireless device. A technique known as load partitioning allows an
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stop-and-wait protocol for a noisy channel Simplex stop-and-wait protocol for an error-free channel diagram explained 1. The Sender‚ which runs in the Data Link Layer of the source machine‚ fetch a packet from the Network Layer 2. An outbound frame is constructed 3. Sender remembers the next frame’s sequence number before entering the loop 4. The Sender then sends the frame to the Receiver a. Check: If timer is already running then reset
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rhomboid crystals of calcium oxalate; sclereids of the epidermis and dry scales. Identication (Thin Layer Chromatographic Identification Test for Crude Plant Drugs) – Test solution—Transfer 1.0g of dried allii sativi Bulbus Pulveratus to a suitable glass apparatus. Extract with 10mL of a mixture of methanol and water (95:5)‚ using any suitable method as described in Test Solution under Thin Layer Chromatographic Identification Test for Crude Plant Drugs. The filter is the Test Solution. Application
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