2.3. Characterization 2.3.1. FT-IR spectra The IR spectra of different powder were recorded using FT-IR Spectrometer‚ Spectrum RX1‚ USA. The samples were prepared in the pellet form by pressing their mixed powder with KBr by the ratio 1:10 in the Perkin Elmer hydraulic device. 2.3.2. UV-Vis absorption spectra measurement UV-Vis spectra were recorded in N‚ N-Dimethylformamide (DMF) in the range 200-800 nm. All the UV-vis measurements were accomplished by a Shimadzu PC3101 spectrophotometer‚ under
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The dissolution of the drug in different liquisolid formulations was performed in 500 ml simulated salivary fluid (phosphate buffer pH 6.8) maintained at 37 ± 0.5 ºC using the USP dissolution tester apparatus II‚ at a rotation speed of 50 rpm. Aliquots from the dissolution medium were withdrawn at 1‚ 2‚ 3‚ 4‚ 5‚ 6‚ 7‚ 8‚ 9‚ 10‚ 12.5‚ 15‚ 20‚ 25 and 30 minutes time intervals. The samples were changed with fresh dissolution medium of same amount to maintain a constant volume in the vessels. Samples
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3. RESULTS AND DISCUSSION 3.1. Powder X-Ray diffraction analysis The grown Cd doped LSMH crystal were subjected to powder X-ray diffraction studies using a Rich Seifert X-ray diffractometer employing CuKα (1.54058 Å) radiation‚ scanning angle ranging from 10° to 70° at a scan rate 1°/min to confirm the crystalline phase of the grown crystal. Fig 2 shows the X-ray powder diffraction patterns of pure as well as Cd doped LSMH single crystals. The obtained (h k l) values are indexed using the JCPDS
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NANO LETTERS Extended Arrays of Vertically Aligned Sub-10 nm Diameter [100] Si Nanowires by Metal-Assisted Chemical Etching Zhipeng Huang‚† Xuanxiong Zhang‚† Manfred Reiche‚† Lifeng Liu‚† Woo Lee‚*‚†‚‡ Tomohiro Shimizu‚† Stephan Senz‚† and Ulrich Gosele*‚† ¨ Max Planck Institute of Microstructure Physics‚ Weinberg 2‚ D-06120 Halle Germany‚ and Korea Research Institute of Standards and Science‚ Yuseong‚ 305-340 Daejon‚ Korea Received July 31‚ 2008 2008 Vol. 8‚ No. 9 3046-3051 ABSTRACT
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SYNTHESIS AND CHARACTERIZATION OF POLYANILINE/POLY (P-HYDROXYANILINE)/Fe3O4 MAGNETIC NANOCOMPOSITE M. R. SABOKTAKIN‚ A. M. MAHARRAMOV‚ M. A. RAMAZANOV Baku State University‚ Baku‚ Azarbaijan E-mail: mamed_r50@mail.ru Several composites have been studied for static dissipationand microwave absorbing materials based on polyaniline with metallic oxides. These composites which are conducting polymers have been widely used because of their lower density as well their good environmental stability as in
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Comparison Essay Budge Wilson’s “The Metaphor” and Alice Munro’s “An Ounce of Cure” are very similar. Both short stories show how young teenage girls sometimes do not get along with their mothers. They also show how people try to commit suicide when they are emotionally hurt. One last thing they have in common is that they show how most teenage girls overreact in certain situations. “The Metaphor” is about a teenage girl named charlotte. Charlotte is in a more advanced English class. She loves
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Genocide Comparison Essay From 1915 to 1994‚ the Rwanda‚ Holocaust and the Armenian genocide had many similarities and differences. The three incidences were helped in different degrees by other countries. Rwanda had the least help and the Holocaust had the most with Armenia in between. All three incidents did result in continuing tensions between the groups. The difference between all three events was the degree of which they were aided. Rwanda was helped the least out of the three countries
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Comparison and contrast Exercise 1 Using the example paragraph as a model‚ compare the Armani‚ the Mesh Elite and the Elonex with respect to price‚ screen size and amount of RAM. Price Processor Speed Screen Size Hard Disk RAM Armani R850 P4. £2‚467 1.7 GHz 19" 40 GB 256 MB Mesh Elite 1.7GT Pro £1‚938 1.7 GHz 19" 57 GB 256 MB Elonex WebRider Pro £1‚174 1.2 GHz 17" 38.1 GB 128 MB Four personal computers‚ Evesham Axis 1.33 SK‚ Armani R850 P4‚ Mesh Elite 1.7GT pro and
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Atmosphere Comparison The two stores’ atmospheres that I will compare in this paper will be J.C. Penney and Kohl’s. Both stores are very similar in every aspect. They are both retailers that offer a variety of goods‚ such as apparel‚ shoes‚ and accessories for women‚ children and men‚ and home products such as small electronics‚ kitchen electrics‚ electric shavers‚ toothbrushes‚ vacuums & floor care‚ bedding‚ toys‚ and luggage. Basically anything you would ever need to survive except for food
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A Macroeconomic Comparison of the United States of America and Germany (2002-2012) Thomas Edison State College GDP & GDP Growth Rate - USA: GDP is an important measure of the health and wellness of an economy. GDP in short is‚ the total expenditure of an economy through its consumption‚ investment‚ government purchases and net exports. According to data release by the world bank‚ the United States has the largest national GDP on the planet
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