Absorption spectroscopy

J. Robert Oppenheimer had a very interesting life that undoubtedly influence his works in science. He was born on April 22, 1904 in New York City, New York. The Oppenheimers were Ashkenazi Jews. In his childhood, J. Robert Oppenheimer moved to Manhattan. Early on, Oppenheimer attended Alcuin Preparatory School. However, in 1911, he switched and began attending the Ethical Culture Fieldston School. His family was a part of the Ethical Culture Society. The Ethical Culture Society was an outgrowth…

The visible pulse (gating pulse) enters the microscope, and together with the ultrafast electron pulses illuminate the nanostructure specimen (gold nanoparticle). The visible laser pulse kept at low power (~1.8 mJ/cm2) to avoid saturation. At the spatiotemporal overlapping, the coupling between the visible and electron pulses takes place. The signature of this coupling can be revealed by measuring the electron energy spectrum using the electron energy spectrometer attached to the microscope. The…

CORROSION STUDIES WITH ANTIGONON LEPTOPUS IN 1M HCl S.Aejitha 1, P P.K.Kasthuri 2andGeethamani 3 1 Department of Chemistry, Asian College of Engineering & Technology, Coimbatore- 641110, India 2 Department of Chemistry, L.R.G.Government Arts College for Women, Tirupur- 638604, India 3 Department of Chemistry, Sriguru Engineering College of Technology, Tamil Nadu, Coimbatore -641110, India Correspondence should be addressed to S.Aejitha ,aejitha_subbaian@yahoo.co.in ABSTRACT The inhibition…

trimethylsilylenol ethers of metabolites was performed by treatment of the extract with catalytic amounts of trimethylsilylchloride (TMSCl) and trimethylsilylimidazole to produce silylated compounds that were determined using gas chromatography mass spectroscopy. The GC/MS analysis of the culture supernatants of aqueous extract of…

Abstract In this study, a CO2-respensive GM-AD-HA hydrogel derived from electrostatics crosslinks and supramolecular bond will be produced and studied about its mechanical properties and physiological performance. It is expected to have application in restoring cartilage and controllable delivery of Epirubicin Background of research Hydrogels have crosslinked microstructure and can swell up in water without resolving. Their soft and rubbery nature minimizes inflammatory reactions of the…

Gastroretentive System of Metformin: Approaches to Effervescent Tablet Sudhanshu K Chakravati1, Javed Khan Pathan1, Sapna Malviya1, Anil Kharia1 Modern Institute of Pharmaceutical Sciences, Indore (MP) ABSTRACT Effervescent tablet generally contains in addition to active ingredients, mixture of acids/acid salts (Citric, Tartaric, Malic acid or any other suitable acid or acid anhydride) and carbonate and hydrogen carbonates (Sodium, Potassium or any other suitable alkali metal carbonate or…

(a) (b) (a) (b) 3. 1 Potentiodynamic polarization test of Mg-Zn-RE and Mg-Zn-RE-xCa alloys Potentiodynamic polarization test in Kokubo solution was carried out to evaluate the bio-degradation behavior of Mg-Zn-RE and Mg-Zn-RE-xCa alloys. The results (Fig. 1) revealed that the corrosion potential, Ecorr of Mg-Zn-RE alloy was -1841 mV, which…

History of Communication The communication methods employed by human dates back from a very early stages of civilization. In the primitive ages, communication were based on human voice. But it had a limitation, the distance. As distance grew between two people, messages got hard to convey due to the limitation of vocal cord. Next big step taken by human civilization was the invention of fire. He soon realized that this fire could be used for communication. During the attack in China, soldiers…

Preformulation Study Preparation of calibration curve of Amoxicillin trihydrate [51,53,76] Preparation of stock for Hydrochloric acid Stock solution in 0.1N Hydrochloric acid (0.1N HCl): 10 mg of Amoxicillin was accurately weighed and transferred into 10 ml volumetric flask. It was dissolved and diluted to volume make up to mark with 0.1N HCl to give stock solution containing 1000 µg/ml, after than 1ml take to from 1000 µg/ml and dilute to volume make up to mark of 10ml volumetric flask with…