Fourier transform spectroscopy

1. INTRODUCTION Electrochemical Impedance Spectroscopy is an effective method of analyzing the intricate electrical resistance of a process and it is sensitive to surface phenomena and changes in the bulk properties. Thus it plays a major role in electrochemical research. It has been diligently used for the interpretation of corrosion mechanisms and in the characterisation of charge transport over the membrane. In the area of biosensors, it is especially appropriate for the detection of…

10.1 SUMMARY The aim of the present investigation was to formulate Raloxifene Hydrochloride Liquisolid compacts, with coadministration of a bioenhancer, for oral bioavailability enhancement. The reason for poor bioavailability (2%) of Raloxifene Hydrochloride is low solubility (100μg/mL) and high hepatic first pass metabolism. According to BCS, Raloxifene Hydrochloride is considered as Class II drug, lipophilic and highly permeable compound. Therefore, formulating Liquisolid Compacts bearing…

Abstract As one of the most popular analgesic and antipyretic, especially for pregnant women and children, acetaminophen is available over the counter in many forms. When consumed over long periods of time or in high dosages, acetaminophen has serious side effects including liver damage and other organ damages, therefore an effective quality control method of analysis. Here a method using cyclic voltammetry to analyze the concentration of acetaminophen in a liquid suspension Publix brand…

MWCNTs. By combining the selectivity and catalytic capacity of PB for H2O2, a synergistic effect was observed for the H2O2 detection. The morphology and chemical composition of the MWCNTs@PpPD-PB nanocomposites were characterized by Fourier transform infrared spectroscopy, transmission electron microscopy, and X-ray…

ANALYTICAL METHODS Determination of λ max Gemifloxacin mesylate λ max is determined by preparing one standard concentration of 10μg/ml and scanning should be done. Preparation of 0.1N HCL 8 ml of hydrochloric acid is taken in 1000ml volumetric flask and dissolved with distilled water and then make up to 1000ml with distilled water. Standard graph of Gemifloxacin mesylate: The λmax of Gemifloxacin mesylate in 0.1N HCL was scanned in UV-Visible Spectrophotometer and found to have maximum…

Witek-Krowiak et al., (2010) researched on the use of peanut shell to remove heavy metals from water solution. Cu (II) and Cr (III) ions were the heavy metals in this research, using Langmuir, Freundlich, Redlich–Peterson and Sips models to examine data gotten from the tests. The preparation of the bio sorbent material (peanut shell) was prepared by washing with pipe and refined water for about 1-2hrs to remove dirt and colour, the washed peanut shells were dried in an oven for a day then mashed…

Melting point is the technique that disrupts the IMAF’s and forces the molecule to break by adding thermal energy to increase kinetic energy to the compound. When melting the unknown the interactions within the IMAF’s of the molecule are decreasing causing a disruption within the structure of the lattices. Determining the melting point of Unknown 105 A helps narrow down the possible compound that it can be, by the given melting point range. The narrower the range represents the relative purity…

The following analytical method is reported for the estimation of Atorvastatin. 1. UV Spectroscopy In the present investigation UV Spectrophotometer method was used for the estimation of Atorvastatin. Construction of calibration curve for Atorvastatin. Preparation of stock solution: Aqueous solutions of phosphate buffer of pH 6.8…

2. Materials and Methods: The keratin was extracted from Chicken feather which were collected from the local market of Raipur (21.14°N 81.38°E) Chhattisgarh, India. The 91% food grade alginate (sodium salt form) was purchased from Loba Chemie. The β-mercatpoethanol (mol. wt. 78.13) from LOBA Chemie, sodium dodecyl sulfate (SDS) (mol. wt. 288.38) and urea (mol. wt. 60.06) was purchased from Merck, and ethanol was purchased from Sigma-Aldrich. Antimicrobial strain of gram negative bacteria…

A novel solid-phase synthesis methodology of N-substituted-2-aminothiazolo[4,5-b]pyrazine derivatives was developed. The key step in this synthesis strategy is tandem reaction of isothiocyanate terminated resin 2 with o-halo-2-aminopyrazine, affording cyclized 2-aminothiazolo[4,5-b]pyrazine resin 4. To increase the diversity of our library, Suzuki coupling reaction was performed at the position C6. Further functionalization of 2-aminothiazolo[4,5-b]pyrazine core skeleton with various…