Acetic anhydride

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…

Introduction The ferric chloride test is used to determine the presence of phenols in a given sample or compound (for instance natural phenols in a plant extract). Enols, hydroxamic acids, oximes, and sulfinic acids give positive results as well. The ferric chloride test can be used to detect metabolites in urine in case of inborn error of metabolism such as phenylketonuria. In addition,the Ferric Chloride test can be used to detect salicylates in urine after an aspirin overdose.1 Background…

In pursuit of our continued interest in the development of solvent-free and green synthetic procedures, we decided to explore the use of tartaric acid catalyst for synthesis of polysubstituted quinolines via Friedlander condensation in high to excellent yields at 70 °C under solvent-free conditions. Initially the reaction between 2-aminobenzophenone (1.0 mmol) and dimedone (1.0 mmol), as the model reaction was examined in the presence varying amount of tartaric acid as catalyst and the results…

Pharmacology 1 Major Assignment Salbutamol The chemical name of salbutamol is 1-(4-hydroxy-3-hydroxymethylphenyl)-2-(t-butylamino)-ethanol sulphate, chemical structure is (C13H21NO3)2 • H2SO4 and molecular weight is 576.7g/mol Generic Name: albuterol Commonly used brand name(s): Available doses and dosage forms: Oral salbutamol: Adults and Children over 12 years: Usual starting dosage of salbutamol is 2mg or 4 mg 3 or 4 times a day. A dosage exceeding 4 milligrams of salbutamol 4 times…

Sterile Saline (0.9% w/v NaCl) Dissolve 9.0gm of NaCl in 1000ml water and dispense 9.0ml of the solution into 20ml test tubes. Autoclave the tubes as per the validated cycle and cool to room temperature. Sterile saline with polysorbate 80: Dissolve 9.0gm of NaCl in 1000ml water and add .5gm of tween 80 to the resulting saline solution, dispense 9.0 ml of the solution into a number of 20ml test tubes. Autoclave the tubes Preparation of Inoculums and its Standardization: 1) Take loop full of…

The role of oxysterols in human body and disease 1. Introduction Oxysterols are 27-carbon derivatives of cholesterol created by spontaneous or enzymatic oxidation (Figure 1, (Brown and Jessup, 2009)). The oxidation of cholesterol occurs either on the side chain or on the sterol core. Side chain oxidation generates, e.g., 24-hydroxycholesterol (24-HC), 25-hydroxycholesterol (25-HC) or 27-hydroxycholesterol (27-HC) while the core oxidation gives rise to ring oxysterols, mostly ring-B oxysterols,…

General Introduction Dietary lipids: Dietary lipids consist of a broad group of compounds that are soluble in organic solvents and insoluble in water. Their density is lower than water and consistency varies from liquids to solids at normal room temperature, depending on their structure and function. They are also referred as ‘Oils’ which are liquid and ‘fats’ which are solid at room temperature. Lipids are the important constituents of diet due to their higher energy value. One gram of lipid…

Proximate analysis The analysis result of proximate composition of dried laver (P. species) has presented in Table 1. In our study, the crude protein of commercial dried laver was found to be (42.99 ± 0.051g/100g DW) and the moisture content was (9.40 ± 0.056 g/100g DW). The ash content was found (10.30 ± 0.033 g/100g DW). Laver, in this study, contained a very small amount of crude lipids (0.49 ± 0.04 g/100g DW). The total dietary fibre of dried laver was (31.63 ±0.032 g/100g DW). The total and…

WHAT IS FORMALIN? Formalin is the trade name for an organic compound made by formaldehyde and water. It has the chemical formula CH2O and its chemical structure is as shown in figure.1. Uses: Formaldehyde is used mainly in the production of plastics (such as urea-formaldehyde plastics which is used in many manufacturing processes due to its useful properties such as flexural modulus, and a high heat distortion temperature, high surface hardness, low water absorption, high tensile strength, mold…

The effects of caffeine on Daphnia magna Lee Phan Lab Section: P0501 1000587723 1. Materials and Methods: Preparation: Clean 3-well specimen chambers were kept in ice and a cooling chamber was then prepared to be put under the microscope, by filling it with ice and a small volume of water. This was done to ensure the temperature would remain around 15 degrees Celcius, which could keep Daphnia magna efficiently cool. Furthermore, the different concentrations were prepared in separately…