Silica gel

The Brentwood Home Bamboo Mattress with gel memory foam is a unique mattress with ingredients specific to Brentwood. This review is specific to the 11-inch thick mattress in the queen size, but this mattress is available in different sizes and thicknesses. This mattress is unique due to its usage of New Zealand wool and bamboo fibers. Below, there is an in-depth discussion on this mattress. 1. 2.5 inches Gel Mattress Foam: This foam is infused with blue gel. This helps combat the heat that…

solution. The tube was then incubated in a heat block for 10 mins at 65 degrees centigrade and then placed in a micro-centrifuge for ten minutes. After Centrifugation, the supernatant was collected and transferred into a new tube. Then 3 microliters of silica resin was added to the supernatant to bind present nucleic acids. The tube was then incubated for 5 minutes in a heat block at 57 degrees centigrade. Then Wash Buffer was added to remove contaminants. Then the collection and…

Jatropha gossypiifolia L. (Euphorbiaceae), widely known as “bellyache bush,” is a medicinal plant largely used throughout Africa and America for treatment of inflammatory analgesic antidiarrheal diseases. In spite of some published data on its efficiency, there are still few toxicological data unfolding the safety of this plant. The plant was extracted with many solvents (pet. ether, ethanol, and water). The preliminary phytochemical outcomes revealed that flavonoids and other glycosides as…

lipids from the egg yolk, the egg yolk needed to be combined with an organic solvent such as a mixture of CHCl3/MeOH. An organic solvent was needed to carry the extracted lipids up the TLC plate because the plate was polar, due to the presence of silica gel (silanol groups). To compare relatively similar lipids to the ones found in the egg yolk, the egg yolk extract was compared to lipids such as cottonseed oil, cholesterol, phosphatidyl choline, phosphatidyl ethanolamine, and sphingomyelin. The…

to perform. This system serves as a fast and simple plasmid purification method for routine molecular biology laboratory applications (Qiagen). This procedure is based on alkaline lysis method of bacterial cells and the by absorption of DNA onto silica in the presence of high salt. Starting with the preparation and clearing of a bacterial lysate, then absorption of DNA, and finally the wash and elution of plasmid DNA are the three basic steps that conform the procedure. After the preparation…

narrow vessel in the column will induce a high pressure in the instrument. The column is always filled with the stationary phase. The stationary phase is commonly filled with silica gel since the size of the silica particle, surface properties and pore structure will lead to good separation results of solvent. The silica gel is also inert to most solvent so it can separate various type of chemical compound with high reproducibility. The materials for constructing a HPLC column are inert to the…

III. RESULTS AND DISCUSSION A. Influence of specific gravity to water to binder ratio of M-S-H binder In development of M-S-H binder with magnesium oxide and silica fume, it is noted that silica fume has rather low specific gravity (S.G) and bulk density compared to Portland cement (PC). Thus, use of high silica fume content in the binder consequently results in a binder system of low specific gravity and bulk density, compared to PC. The light weight binder leads to a difference in water to…

In lab, a sample of crude caffeine was purified using the technique of sublimation. Thin layer chromatography (TLC) was used to verify the caffeine's chemical structure and purity. Sublimation played a huge role in the purification of the crude caffeine. The process of sublimation is to take a chemical and change it from a solid phase directly into a vapor. Another reason as to why sublimation was used is because the caffeine can be separated from its contaminant due to the fact that it does…

Synthesis of oleyl 9,(12)-hydroxy-10,(13)-oleioxyoctadecanoate (OLHYOODT) (4) The reaction mixture was heated on a magnetic heater and stirrer until it reached the experiment temperature; catalyst sulfuric acid (SA) and desiccant of silica gel (SG) were added to the mixture at that moment to remove the water during the reaction. The reaction temperatures were held constant within a range of ±1°C. A mixture of HYOODA 3 (5 g; 0.01 mol), oleyl alcohol (OL) (10 g; 0.02 mol) in a 250-mL three-neck…

Separation of Compounds by Thin Layer Chromatography • Three 100 mL beakers and watch glasses were cleaned in preparation for this experiment. Three silica gel plates were acquired from the instructor, and to each plate a line was drawn 5 mm from the edge of the plate on both sides with a pencil, this was done carefully as to not scratch or break the plate’s gel layer. After marking the plates, three different concentrations of methanol and dichloromethane were prepared in the three beakers: a…