Germ layer

column and so on. 1 Chromatography differentiates by allowing the differences in polarity, vapor pressure, solubility and so on of different substances to be observed. 1 In our endeavor, we will be using specific types of chromatography, termed Thin-Layer Chromatography (TLC) and column chromatography. Essentially, TLC is an adsorption aspect of chromatography that uses a polar stationary phase and a non-polar mobile phase, and utilizes capillary…

have the higher yield, since it is more stable and consequently harder to break down throughout the experiment. Keywords Nitration, Bromobenzene, Substitution, 4-nitrobromobenzene, 2-nitrobromobenzene, Column Chromatography, Infrared spectrum, Thin-Layer Chromatography. Introduction This experiment…

Introduction Near-field communication (NFC) is a set of protocols that allow communication between two electronic devices. Most commonly this technology is used for communication between portable devices like smartphones. Even though it is a contact less system of communication, it requires that the devices are within 4 cm or 1.57-inch distance from each other (Carter & Faulkner, 2015). Basically, this technology relies on creating a low speed connection between the devices which has a very…

and amino acids.2 Chromatography is the process of separating a mixture, and has many different applications throughout the world. There are a variety of ways to conduct chromatography including column chromatography, paper chromatography, and thin layer chromatography. The particular experiment conducted and discussed is paper chromatography. This experiment will use chromatography to test and identify unknown pen inks based on tests done on known pen inks. Understanding the history of…

Abstract In this paper CuO-NH-NH2 nanoparticle was synthesized and used to remove anionic dyes from single and binary systems. The scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), Energy-dispersive X-ray spectroscopy (EDAX) and X-ray diffraction (XRD) were used to characterize the nanoparticle. Direct Red 80 (DR80) and Direct Green 6 (DG6) were used as anionic dyes. The effect of adsorbent dosage, dye concentration and pH on dye removal was evaluated. Kinetic…

Unlike any other communication technology, Power Line Communications (PLC) is a technology whereby a sender modulates the data to be sent, injects it onto medium, and the receiver demodulates the data to read it. The basic difference is that in PLC no extra wiring is needed. Considering the ubiquity of power lines, it implies that with PLC, virtually all line-powered devices can be controlled or monitored. Generally, PLC uses the same electric cables for the purpose of power delivery and…

Wire Rope Wire Rope Definition and Types Wire rope is machine composed of individual wires that have been twisted to form strands and work together to achieve optimum results for the selected operation. Strands are then twisted, to form a wire rope. The parts of a wire rope illustrated in the figure below. The core is the foundation of the rope design. The main functionality of the core is to support the wire stands and maintain them in their position during the lifecycle of the product…

Alejandro Carriegos 9/1/2015 Network Layer The main purpose of the network layer packet is connecting with the destination; it must be familiar with the topology subnet and choose the appropriate paths through it. When the source and destination are on different networks, the network layer (IP), have to deal with these differences. The services provided by the network layer should be independent of the topology subnet. The transport layer must be protected in the number, type, and topology of…

Chromatography Abstract: The purpose of this lab is to use chromatography to separate and purify organic compounds. There are many different types of chromatography but most depend on the principle of adsorption. The two important components of chromatography are the adsorbent and the eluent. Adsorbents are usually solid materials that will attract and adsorb the materials to be separated. The eluent is the solvent, which carries the materials to be separated through the adsorbent. After being…

This disagreement was about the pigments located in the stems and veins of a plant and the pigments located in the green portion of a leaf. Jan believed that only the stems and veins contained all of the important pigments except for chlorophyll. She believed that the green portion of the leaf would not contain all these other pigments. Mark, on the other hand, believed that the same pigments were also located in the green portion even though they were not visible. In order to determine who was…