Ozone layer

Chapter Three - Conclusions 3.1 Conclusions This research aimed to verify the synthesis protocol for HPA-12 and analogues from aldehydes of Greatrex et al. (2014). Limited success in synthesising required quantities had a negative impact on the outcomes of this research, and no reasons were identified for the low yields that were obtained. Additional time, or resolution of issues resulting in low yields, would have allowed additional research and confirmation of the synthesis protocol. Long…

TLC and HPTLC Introductions Thin layer chromatography (TLC) is derived from liquid chromatography where liquid serves as mobile phase and thin layer of substance on a flat late surface serves as stationary phase. The thin layer of materials act as sorbent while the mobile phase known as solvent. Solvent will send the solutes through the sorbent depends on the strength of the mobile phase as it dissolved the solute and send them up the plate against gravity ,and resistance of sorbent…

In its beginning, the Internet was much slower than it is today, requiring companies to host their own networks in order to interconnect their computer systems. As the Internet continues to evolve and become faster with each passing year, the ability has emerged for companies to cut costs by offloading their networks to companies who host these services over the Internet. This practice has widely come to be known as Cloud Computing. The benefits of such a service are many, but it does come with…

Figure 3 demonstrates the 3 layers that make up the SDN structure. Lowest layer represents the Infrastructure Layer or Forwarding Plane, mainly focusing on data forwarding but it also takes care of monitoring local information and gathering statistics. Next layer represents the Control Layer or Control Plane which is responsible for programming and managing the Forwarding Plane. Control Plane makes use of the information gathered by the Forwarding Plane in order to define the route and operation…

IPsec is often installed on today's IPv4 networks to protect communication over VPN networks. It is used to access VPN, as well as between VPNs. IPv6 transition mechanisms can use this kind of infrastructure to achieve a certain level of protection, even in the absence of IPv6 IPsec. Remote IPv4 hosts access private networks by establishing encrypted VPN access to a gateway device set up for this purpose. If the same host is capable of IPv6, it can break through an IPv6 tunnel over this…

Separation through Ion Exchange Chromatography Introduction Amino acids are important molecules that serve as building blocks for all proteins that are made in every organism. Although there are millions of different proteins that can be made by all living things combined, all proteins are derived from a base of 20 amino acids that are combined together in different ways to create the diversity of life that is on Earth. Humans cannot produce all of the amino acids needed for protein synthesis,…

To identify the unknown chemical mixture (#757), a TLC analysis was conducted using three standards (aspirin, acetaminophen, and caffeine). A TLC plate was prepared by drawing an origin line and solvent front line with a pencil. Three spot were labeled A, B, and C. A sample of each standard was spotted on the analytical TLC plate approximately 1cm from the bottom of the plate. It was then enclosed in a jar filled with 2ml of 95% ethyl acetate- 5% acetic acid. (Another laboratory group conducted…

Introduction The purpose of experiment was to identify an unknown analgesic drug using thin-layer chromatography (TLC). Using the thin-layer chromatography to determine the composition of the Acetaminophen, Aspirin, Caffeine and Salicylamide, then compared with unknown analgesics. Experiment Scheme Acetaminophen Aspirin Caffeine Salicylamide C8H9NO C9H8O4 C8H10N C7H7NO Figure 1. The Chemical structure of Acetaminophen, Aspirin, Caffeine…

patterns these are all because the ozone layer is disappearing from us using fossil fuels as power sources. There are ways to preserve the part of the ozone layer we have left and that is to use sustainable energy sources. There are many ways of sustainable energy: solar, thermal, wave, water, and more. Some of the sustainable energies produce greenhouse gasses that help protect the ozone layer. You might be wondering what the world is going to come to when the ozone layer disappears; well…

hole in the ozone layer. This hole allows ultraviolet, also known as UV, rays to cover the Earth like a blanket since the purpose of the ozone layer is to block these rays. The burning of fossil fuels releases carbon dioxide into the air that wraps the UV rays around the Earth which causes the warming of the Earth. In understanding what global warming is and what causes it, we can better understand how to prevent global warming and preserve our Earth. The ozone layer is the layer in the…