The spectra of the analyzed samples were recorded using a PERKIN ELMER 16F PC FT-IR instrument. Samples for FT-IR measurements were supplied by crushing dry material into KBr. The morphology of the MWCNTs was studied by Scanning Electron Microscope (SEM). SEM measurement was carried out on the XL30 Philips Electron Microscope 2.3. Transstrification parameters The methanol and catalyst were stirred about 10 min separately and then transferred to the reactor for transestrification.
Fractional distillation is a separation technique used to separate two liquids with different boiling points and keep the liquid. To do this, we set it up just like the distillation lab with the 10-15mL in the test tube over the fire and the tube leading the the test tube in the beaker. The first time you go through, the same test tube is left in the whole time but you must record the temperature around every 10-15 seconds using your labquest. You then find two places where the temperature is consistent for a few seconds, this is your plateau. The second time you go through, change out the test tubes as soon as you get to your first plateau, this liquid is liquid one.
The mixture was stirred until the entire dissolved and homogeneous. The materials were ready each put in a bottle 100 mL size vial, then sterilized with autoclave for 15 minutes at 121 °C. The preparations hydrogel done within aseptic at LAF cabinet. Evaluation of chloramphenicol hydrogel ophthalmic preparations Organoleptic test Organoleptic hydrogel checked by observing changes in color, odor and clarity. Clarity was checked visually by examination of the formulation against white and black background.
A separatory funnel is attached to the clamp stand with a conical flask below as a receiving flask for the unwanted solution. The separatory funnel works by adding a solution to the mixture and blocking the top with a bung. Then turning the funnel upside down and right way around combines the mixture and the solution aiding in separating the ester from the aqueous layer. The aqueous layer is then removed/released by turning the head of the funnel. The bung must be removed at this stage as Carbon Dioxide is released.
A typical test is to mix the sludge homogenously and let to settle in a 100 mL cylinder. After a while, it is possible to verify the clean water on top, separated of the solids, with a settling velocity, which is measured respecting the time. Interface height is plotted in a chart against time and the zone settling velocity (ZSV) is calculated from the initial slope of the graph. The speedy in which the solids settle out are dependable on their concentration. In the beginning of the process (moment t>0), there are two interfaces, one moving in the direction of the other (on from the bottom up, and other from the top to bottom), this is the moment of settling the sludge.
30°C 5.5 METHOD VALIDATION Validation of RP-HPLC method 5.5.1 Accuracy To study the accuracy, 10 tablets were weighed and powdered. Analysis of the same as carried out as mentioned in section .recovery studies were carried out by adding the known amount of Etodolac to the preanalyzed sample at three different concentration levels i.e. 80%, 100%, 120% of assay concentration and percent recoveries were calculated. From the above filtrate about 1ml of sample solution was pipette out and transferred to three 10 ml volumetric flask separately along with 0.8, 1, 1.2 ml of aliquots from the stock solution of Etodolac. All the solutions were filtered through 0.4 μ membrane filter and injected into HPLC system and peak areas were recorded.
The biggest concern is that there are solvents left in the oil after processing. In this method, the plants are dissolved in a solvent such as benzene or hexane. After the process completes, the solvent is evaporated off. Sometimes a vacuum or centrifugal force is used to aid the evaporation. Carbon Dioxide - This is one of the latest methods of obtaining essential oils.
A549 cell lines were obtained from National Center for Cell Science (NCCS), Pune, (India). Millipore milli Q water was used for all the experiments. 2.2 CALIBRATION CURVE OF EPIRUBICIN IN PHOSPHATE BUFFER pH 7.4 100mg of drug was weighed and dissolved in 100 ml distilled water (stock). 1 ml of resulting solution was taken and dilute with 100 ml with phosphate buffer pH 7.4. Further, 1ml, 2ml, 3ml, 4ml & 5ml was taken from above diluted solution and dilute it to 10 ml with phosphate buffer pH 7.4.
o When using rotating machinery, place neckties or necklaces inside your shirt or, better yet, remove them. o Make sure power turned off as soon as you finish your experiment/activity in the lab. Capacitors may store dangerous amount of charge so discharge them fully by means of well insulated
Filter onsite generation of wastewater contaminants so that it can be used at the site itself for non-consumptive uses such as for horticulture, washing, cleaning etc. Preparation of working model for single unit filtration system so that the thoughts can be laid into execution Able to achieve sustainable environment goals because it should be the very first point kept in mind before beginning any project work. CHAPTER 4 FILTER MATERIALS AND FILTRATION TECHNOLOGY 4.1 Activated Carbon Activated carbon is created from a variety of carbon-based materials in a high-temperature process that creates a matrix of millions of microscopic pores and crevices. One pound of activated carbon provides anywhere from 60 to 150 acres of surface area. The pores trap microscopic particles and large organic molecules, while the activated surface areas cling to, or adsorb, small organic