Spectroscopy

Nowadays, in adsorptive separation and purification, activated carbon, zeolites, activated alumina, and silica gels, as existing commercial sorbents, have important roles. However, innovative technological developments are needed in the new economy and under the stringent environmental regulations. Despite very promising features of the newly developed nanostructured sorbent materials, basically exploring and systematic investigations are needed on both synthesis methods and adsorption characteristic

process of transferring each solution smoothly, a pipette will be used to place the unknown solution and DI water into the 10 mL graduated cylinder. First, 100% of the unknown concentration should be placed in a test tube ready to be put in the spectroscopy. Then, using a clean pipette fill the graduated cylinder with 9 mL of the unknown solution and fill the rest with DI water using a different clean pipette until 10 mL is reached. The concentration solution is 90%, and 10% is the DI water which

Major project ON FORENSIC GUNSHOT RESIDUE ANALYSIS. SUBMITTED BY : GAURAB SOM B.Sc.(hons)FORENSIC SCIENC (ENROLL NO - A5905913096) Supervision of DR. SHRUTI GUPTA Amity University, Uttar Pradesh Amity institute Of Forensic science (2013-2016) The project was a learning experience for me in terms of accumulation of educational knowledge as human values, as well as co-operation. During this project I felt indebted to a lot of people. I owe a special depth of thank to my guide DR.SHRUTI

Project organization and Management Structure: As the experimental methods are complementary to each other, but are not critically interdependent, the cooperative design of my research plans will greatly facilitate my ability to accomplish the specific aims. To monitor the progress and project quality, I will conduct meetings with Prof. Battaglia on a bi-weekly basis, write monthly reports that can be incorporated into peer-reviewed publications, and present my research outcomes at lab group meetings

Introduction: Water is an important substance that is needed all around the world. Freshwater is not completely pure though. It has dissolved solutes from minerals, and gases from the atmosphere. The presence of dissolved ions in water gives it a chemical property that is called water hardness. Water hardness refers to a liquid that has a high concentration of minerals, but those minerals are typically Ca2+, and Mg2+. Water that has a very low concentration of these elements is called “soft”. This

Figure 1 shows the 1H magic angle spinning (MAS) NMR spectra of Nafion membrane heated at 80 °C for many hours, and then swollen in water (labeled as Nafion-Xh, where X is the heat treatment duration in hours). In the spectra, the three groups of signal were detected between 4 and 7 ppm. The peak at 4.8 ppm was assigned to water on the surface of the membrane (designated as surface water), because its chemical shift was the same with that of bulk water27. The peak at ~5.7 ppm for fresh Nafion (Nafion-0h)

Using the Beer-Lambert Law, it can be interpreted that variation of the concentration in relation to the constant and the path length of the cuvette will be the sole factor in changing the absorption rate of a solution, since the length of the cuvette remains 1 cm throughout the duration of the experiment. A calibration curve that compares the values for the absorbances and the concentrations of the yellow and blue dye can be found in figures 1 and 2 respectively. Figure 1. Shows the calibration

Gunshot Residues are a critical and an important trace evidence used in a criminal investigation. Recovering and analyzing GSR evidence is carried out in order to link an individual to a certain firearm. Finding GSR on a person’s hand does not necessarily mean that he/she is the one that fired the weapon. At the same time not finding any GSR particles does not prove that that person was not the shooter. Gunshot Residues can easily be transferred to various surfaces not only by being in contact with

Surface Segregation and Formation of Silver Nanoparticles Created In situ in Polyvinyl alcohol Films. 1- Introduction. Preparation, characterization, and physical properties of a nanostructured materials of silver (nanoparticles and nanocomposites) have been the subject of various researcher in many scientific laboratories during the past years for many studies and it has been also established that size, stability, color, shape, and properties depend on the method of preparation (radiation, photochemical

Lab Report 4 Biology 103 Prof. Dr. Johnson Spectrophotometer; the finding of protein concentration of an unknown sample of BSA, and by using the standard curve. Abstract A spectrophotometer’s purpose is to use colors of the light spectrum to determine the concentration of light absorbing molecules in a solution. (p.59) In this particular lab, our mission was to determine the protein concentration and the standard curve of the unknown sample of BSA. This, by preparing five dilutions of