Zobrazeno 1 - 10
of 112
pro vyhledávání: ''
Autor:
El Salmawy
Publikováno v:
MEJ. Mansoura Engineering Journal. 23:79-95
Publikováno v:
Egyptian Dental Journal. 67:119-126
Background: Theobromine is a natural alkaloid of plant origin; theobroma cacao. Attempts have been made to use it as a remineralizing agent. Aim of the study: Assessment of the remineralizing potential of theobromine containing toothpastes compared t
Autor:
Seham Naguib
Publikováno v:
MEJ. Mansoura Engineering Journal. 32:45-55
Whereas, Fe (III) is easily extracted using di (2-ethylhexyl) phosphoric acid (D2EHPA), it is hard to strip it from the organic phase. It is well known that Fe (II) is readily stripped from( D2EHPA), so a reduction of ferric to ferrous iron could be
Publikováno v:
Aswan University Journal of Environmental Studies. 1:157-170
A simple and sensitive method for preconcentration and determination of Cd2+, Cu2+, Mn2+, Pb2+ and Zn2+ by flame atomic absorption spectrophotometer was developed. The method is based on the sorption of the studied elements as metal-dithizone complex
Publikováno v:
Journal of Environmental Sciences. Mansoura University. 49:106-112
In this study, activated carbon (AC) was utilized for removal of methylene blue dye (MB) from wastewater. The activated carbon was prepared from rice husk through thermal and chemical activations. The morphology and size of prepared activated carbon
Publikováno v:
MEJ. Mansoura Engineering Journal. 35:1-11
A novel five series of monoesters were prepared two series by reaction of oxypropylated 1, 6 hexane diol with two types of fatty acid chloride (lauroyl and palmi and three series by the reaction of polyethylene glycol (MWs = 400, 1500, 2000) with thr
Publikováno v:
Journal of Advanced Pharmacy Research. 4:161-168
Objective: A simple, selective and sensitive spectrofluorometric method is established for the quantitative assay of Nepafenac (NEPA) in pure form and in ophthalmic suspension dosage form. Methods: The fluorescence quenching of Terbium-Tris complex i
Publikováno v:
Egyptian Journal of Chemistry.
THIS study was conducted to activate and characterize carbons prepared from coconut shells for subsequent adsorption of Cr (VI) from synthetic wastewater. The adsorption process was carried out through batch studies. The results showed that the proce
Publikováno v:
Egyptian Journal of Chemistry.
Thiazole derivatives 2a-c were synthesized via reaction of 2-chloro-N-phenylacetamide (1) and thiourea, thiosemicarbazide or thioacetamide in alcoholic potassium hydroxide. Also, substituted benzaldehyde reacted with thiosemicarbazide at reflux tempe
Publikováno v:
Egyptian Journal of Chemistry.
Two new series of azo-azomethine compounds based on sulfathiazole and sulfadiazine were synthesized. Condensation of sulfathiazole diazonium salt and sulfadiazine diazonium salt with 3-ethoxy-4-hydroxy benzaldehyde. These new azo compounds were react