presence of 95% ethanol producing long red needles. 0.536g‚ 2.07mmol‚ 158-160°C (160°C lit3)‚ 54.6% recovery. Thin layer chromatography was performed in three different eluents‚ hexane‚ toluene‚ and acetone. The chromatography compared aniline‚ 2‚ 4-dinitrobromobenzene‚ and a sample from the mixture of the two reactants when the reaction first began to take place. Another thin layer chromatography used a product sample an hour after the reaction first began and the eluent that showed the best separation
Premium Thin layer chromatography Chromatography
Introduction To Information Security Teacher : Mr. Timothy Tacker Unit 8 Assignment 1 Network Hardening Network Hardening Network Layout 4 : VPN (Remote Access Domain) – Virtual Private Networks (VPNs) with VPN software and Secure Socket Layer/VPN (SSL/VPN) tunnels A Virtual Private Network or VPN enables a computer or network-enabled device to send and receive data through shared or public networks as if it were directly connected to the private network‚ while it’s benefiting from the functionality
Premium Virtual private network Transport Layer Security Router
A simple‚ precise‚ accurate and rapid High-Performance Thin Layer Chromatographic method has been developed and validated for the simultaneous estimation of of ellagic acid‚ chlorogenic acid‚ gallic acid and quercetin in the leaf extract of Terminalia tomentosa and its Formulation. The stationary phase used was precoated silica gel 60F254.The mobile phase used was a mixture of Butyl acetate: Formic Acid: Distilled Water 14:5:5 (v/v). The detection of spots were carried out at 254 nm. This HPTLC method
Premium Chemistry Solvent Acetic acid
There can be both advantages and disadvantages in using a TLC sheet of a different length. For example‚ it becomes a disadvantage if the TLC sheet in this lab was 5 cm shorter. If this were the case‚ then (Sample A) would not have shown up or the second spot of unknown substance #3. Moreover‚ the unknown substance‚ which consists of (Sample A‚ would be incorrectly identified as a pure substance and/or as consisting of only (Sample D). Contrary to using a shorter TLC sheet‚ a longer TLC sheet might
Premium Chromatography Thin layer chromatography Analytical chemistry
restocking procedure adopted by each store does interfere with the feasibility and accuracy of the application as it does not remind the stock manager to update the data each time they had done any restocking. We also trust that that the Secure Socket Layer (SSL) is reliable in creating a secure connection between a client and a server. 5.2 Risks One of the major risks covered by this application is theft breaks synchronization between the inventory and the database. The information could be generated
Premium Transport Layer Security NCR Corporation
sent to the transport layer and is SEGMENTED‚ adds s/d PORT # and sequence number o Network layer turns these into packets with s/d ip address o Data link layer turns these into frames with s/d mac address for default gateway o Frames go to switch and switch checks source mac and learns it if it doesn’t o Switch checks destination mac (default gateway mac) and port floods if it doesn’t know Switch does NOT OPEN frame; just reads frame because switch is same layer as frame o Switch forwards
Premium Ethernet OSI model IP address
catalyst to facilitate the reaction. The reaction forms a porphyrinogen‚ which is then oxidized to the porphyrin product by atmospheric oxygen. Column chromatography is performed for the isolation and purification of tetraphenlyporphin‚ and the thin layer chromatography for analysis.It was concluded that the renention factor(Rf) of the 5‚10‚15‚20- Tetraphenylporphyrin with a percent yield of 61% Introduction: In this experiment 5‚10‚15‚20‚ tetraphenylporphyrin was prepared‚ from four molecules each
Premium Solvent Thin layer chromatography Chemical reaction
wireless information networks ● Line switching ● DTMF – dual tone multi frequency ● Telephony protocol ● Standards in telecommunication ● Digital telephony networks – PCM ● ISDN – Integrated Services Digital Network ● D channel ● DSS1 layer 3 protocol 5 | 54 Communication Systems History of telephony networks ● Traditional analogous telephony networks – 1848: State Telegraphy System in Prussia (Siemens) – 1851: First trans-sea cable between Dover and Calais – 1858: Transatlantic
Premium OSI model Integrated Services Digital Network Internet Protocol Suite
multiple layers of security‚ including communication security‚ operations security and information security. Among all‚ information security stands out and we should pay enough attention to protect it. The C.I.A triangle was used to address the importance of three characteristics that give value to corporations (C stands for
Premium Transport Layer Security Virtual private network Security
Analgesic’s Active Component seeks to separate‚ identify‚ quantify and analyze the active component found in Biogesic®‚ which may be useful for public awareness despite its wide acceptance and availability in the market. Furthermore‚ this study applies thin layer chromatography (TLC) technique since it is the simplest‚ cheapest yet most effective approach in terms to the study’s objectives. The TLC method implies Rf (Rate of flow) values where it is given by the distance from origin to center of subtance spot
Premium Thin layer chromatography Chromatography Chemical polarity