نتایج جستجو برای: 23o to 25oc
تعداد نتایج: 10613985 فیلتر نتایج به سال:
The adsorption of textile dyes by clay was investigated using basic dye (Methylene Blue). Adsorption of dye effluent onto clay samples was carried by batch studies at room temperature, 25oC. The effects of adding clay with zeolite, pH and shaking time towards adsorption performance were investigated. The results from the mixture of 1.0 g clay and 0.01 g zeolite, the increases of pH, pH 9 and th...
The primary function of Photosystem I (PSI)1 during photosynthesis is to provide reducing equivalents, in the form of NADPH, that will then be used in CO2 assimilation (Golbeck, 2006). In plants, this occurs via reduction of the soluble [2Fe-2S] Ferredoxin (Fd) by PSI. Subsequent reduction of NADP+ by Fdrd is catalysed by the FAD-dependent FerredoxinNADP+ reductase (FNR) (Eox/hq = -374 mV at pH...
We carried out a stability study of omeprazole in accordance with the stability testing of pharmaceuticals guideline approved by the Romanian National Drug Agency [1]. Omeprazole is sensitive to heat, humidity, light, and organic solvents; consequently, accelerated tests for stability evaluation were performed at 40oC±2oC and 75±5% relative humidity (RH), according to the current official guide...
Background and purpose: Çonsidering different reports on hazardous of commercial antioxidant, Ïn the recent years, researches have been focused on preparation of more effective and safer antioxidant from natural resources. Hydroquinone is a brightner compound which is used for brightening hyperpigmented region and used in cosmetic preparations. This chemical compound has poor stability, and q...
Objective: The Primary objective of the present investigation was to stabilize ascorbic acid by blocking its irreversible conversion to biologically inactive form. Further aim of the project was to disperse stabilized ascorbic acid in internal aqueous phase of multiple emulsions and deliver it in a suitable base for topical application and enhanced transdermal permeation. Materials and Methods:...
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R. Kanungo,1,* A. Prochazka,2,3 M. Uchida,1 W. Horiuchi,4 G. Hagen,5,6 T. Papenbrock,5,6 C. Nociforo,2 T. Aumann,7,2 D. Boutin,3 D. Cortina-Gil,8 B. Davids,9 M. Diakaki,10 F. Farinon,2,3 H. Geissel,2 R. Gernhäuser,11 J. Gerl,2 R. Janik,12 Ø. Jensen,13 B. Jonson,14 B. Kindler,2 R. Knöbel,2,3 R. Krücken,11 M. Lantz,14 H. Lenske,3 Y. Litvinov,2,15 B. Lommel,2 K. Mahata,2 P. Maierbeck,11 A. Musumar...
5- Amino -3- [4- O- hydroxypheny Ithiosemi carbazido ] -1,2,4-thiadiazole compound has been prepared by the reaction of ( 3-mercapto -5- ami,2,4- thiadiazole) with O-hydroxyphenyl thiosemicarbazide) in mole ratios (1:1) .The ligand characterized and its structure was elucidated depending upon spectral data IR U.V-Vis spectra . Lanthanum complex formula [La( C9H10N6S2O)2Cl2]Cl through lanthanum ...
The geological structure is rather complicated in Guangdong province, China. 10 deep fault belts are mainly oriented NE. NE good channels for thermal energy upwelling, which can form a geothermal water reservoir zone. heating of atmospheric precipitation and surface by rocks the primary formation mechanism hydrothermal resources Huangshadong field. results show that two-stage conversion system ...
Neutron decay spectroscopy of neutron-rich oxygen isotopes has been performed using the two-proton knock-out reaction 9Be(26Ne,X)24,23,22O. A combination of the knock-out of valence and core protons can explain the three observed spectra. These knock-out processes are selective and preferentially populate hole states. The observed narrow resonance state in 23O at an excitation energy of 2.8(1) ...
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