1. Introduction to FTIR spectroscopy: IR spectroscopy was the first structural spectroscopic technique. The IR spectrometry is an analytical technique used to characterize the bonding structure of atoms based on the interaction of the IR radiation with matter, and measures the frequencies of the radiation at which the substance absorbs and lead to the production of vibrations in molecules. Vibrational spectroscopy history begins with the first infrared (IR) spectrum, obtained by Coblentz (1905)
The natural plant exudate gum tragacanth is obtained from the stem of the bush like plant “goat’s-horn”, Astragalus species. Gum tragacanth has been used commercially for well over 2000 years and is currently widely used as a thickener and emulsifier in emulsion systems in different pharmaceutical, food, cosmetic and diverse industrial uses. In addition, it is on the list of stabilizers that are permitted by Food and Agriculture Organization/ World Health Organization that could be used during the
Generally, Inductively Coupled Plasma Mass Spectroscopy (ICP-MS), Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), Atomic Absorption Spectroscopy (AAS), etc. methods are used for the determination of the elements present in biological samples. But these methods require preliminary sample preparation like ashing, acid digestion etc. and
6.1 PHYSIOCHEMICAL CHARACTERIZATION 6.1.1 Appearance Naproxen sodium a gift sample from Cipla ltd., was found to be white, odourless and crystalline powder. 6.1.2 Solubility of Drug in different solvents Naproxen sodium is freely soluble in water & methanol. It is practically insoluble in chloroform & toluene 6.2 FLOW PROPERTIES OF THE DRUG The flow properties of naproxen sodium for various parameters such as bulk density, tapped density, Carr’s index, Hausner’s ratio are shown in table 6.1. it
Introduction Pharmaceutics is the science of preparing and dispensing drugs. Drugs, specially vaccines and antibiotics contain proteins in the form of enzymes or antibodies as the active component. In most cases these foreign proteins can be dangerous or harmful in larger concentrations for the body. Therefore it is crucial for the accurate and precise estimation of the protein concentration in the final product. This estimation of proteins is not only important for the final product but it also
Spectroscopy and Atomic Spectra Erin Halloran Chris Chemistry 1210L-05H Mark In the Spectroscopy and Atomic Spectra Lab the student is to build or locate a cereal box spectroscope. To build this equipment one needs to gather a box, razor blades or notecards, graph paper and a small piece of a diffraction grating. Once the equipment has been gathered cut a small hole in the side of the box; this will be the eyehole where the student will tape on the diffraction grating. A line must then be drawn
reagents Pyrrole (Spectrochem Pvt. Ltd, Mumbai) was double distilled and stored in refrigerator before use. Ferric Chloride (anhydrous) and trisodium citrate were procured from S. D. Fine Chem. Ltd., Mumbai. Silver Nitrate was purchased from Research Lab Fine Chem. Industries, Mumbai. These chemicals were of AR grade and were used as received. All solutions of reacting materials were prepared in distilled water. 2.2 Synthesis of Polypyrrole Polypyrrole (PPy) was synthesized by chemical oxidative polymerization
report about Atomic Absorption and Atomic Fluorescence Spectrometry. What is Atomic Spectroscopy? Atomic Spectroscopy is the study of the electromagnetic radiation absorbed and emitted by atoms. Since unique elements have characteristics spectra,atomic spectroscopy, specifically is applied for determination of elemental compositions. (2nd picture)This is the Electromagnetic radiation,in further discussion atomic spectroscopy is the study of electromagnetic radiation,so let’s discuss what electromagnetic
Crystal growth, spectral, optical, thermal, photoconductivity, laser damage threshold and fluorescence studies of β-P-amino benzoic acid SenthilKumar Chandran, Rajesh Paulraj*, P.Ramasamy Centre for crystal growth, Department of Physics, SSN College of Engineering, Kalavakkam Tamilnadu, India-603 110 Abstract P-amino benzoic acid (PABA) chemical formula C7H7NO2, an organic single crystal was grown by slow evaporation technique. Single crystal X-ray diffraction studies shows that the grown crystal
Nuclear Magnetic Resonance (NMR) Spectroscopy usually referred as Magnetic Resonance Spectroscopy (MRS). MRS/NMR spectroscopy is a technique used to determine various metabolites. It can be performed in vivo as well as in vitro. A problem with in vivo NMR spectroscopy is recognizing individual metabolite contribution within the spectrum, at short echo time. Echo-planar- imaging termed as fast imaging is preferred for MRS. A chemical shift information is suitable for recognizing the singlet resonances