نتایج جستجو برای: aqueous system
تعداد نتایج: 2305427 فیلتر نتایج به سال:
It has recently been shown that aqueous humor is able to obstruct flow through Nuclepore polycarbonate filters having flow dimensions similar to those found in the juxtacanalicular tissue (JCT). We undertook studies designed to identify the component(s) of aqueous humor responsible for this obstruction and to determine the mechanism of blockage. We conclude that aqueous humor contains two compo...
The penetration of rifampin into human aqueous humor was determined in 15 patients undergoing elective cataract surgery. Between 0.9 and 5.5 h after administration of a single 600-mg oral dose, concentrations ranged from 6.0 to 21.5 mg/liter in serum and from less than 0.2 to 1.3 mg/liter in aqueous humor.
Cephalexin is an important antibiotic. It is very significant to determine an appropriate method for the extraction of this valuable antibiotic for industrial applications. Aiming at developing an efficient method for the extraction of cephalexin, the partitioning of cephalexin has been evaluated in aqueous two-phase system, including cholinium chloride and potassium phosphate. The effect of th...
Aqueous humor turnover in the cat eye determined by intracameral injection of inulin*C was found to be 2.1 per cent per minute, a value which is in close agreement with that reported for other species. The inhibition of aqueous humor formation induced by acetazolamide was dose dependent bid the quantities required were much higher than those reported necessary to lower the eye pressure. The dat...
in this paper electrical conductivity measurements and optical investigations takes place in aot/ heptane/ (water or aqueous) systems. the water in oil system prepared with adding water in 50% by weight of aot/ heptane solution. in other systems instead of water, aqueous solutions of 1) zinc acetate and water 2) potassium hydroxide and water were used. in each phase, the trend of the electrica...
in the present study seven synthetic polymers were used as adsorbents for the removal of cd(ii) from aqueous solution. the equilibrium studies were systematically carried out in a batch process, covering various process parameters that include agitation time, adsorbent dosage, and ph of the aqueous solution. the analyzing system was an atomic absorption spectrometer (perkin-analyst 100). it was...
Analysis of the partition in a two-polymer phase system of Salmonella typhimurium R mutants with different susceptibility to phagocytosis distinguished between the mutants. Close to 80% of the R mutants least resistant to phagocytosis accumulated in the dextran-rich phase, whereas more phagocytosisresistant mutants showed higher affinity for the interface and the polyethylene glycol-rich top ph...
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