MALVIN, RICHARD L. AND WALTER S. WILDE. Washout of renal countercurrent Na gradient by osmotic diuresis. Am. J. Physiol. 197(I): 177-180. I g5g.-The antidiuretic hormone regulates the ability of the kidney to concentrate urine. There are two theories as to the nature of the renal concentrating mechanism: I) the existence of an active water pump in a distal area which removes free water from the...

The presence of pharmaceuticals in wastewater, mainly hospital is a serious environmental concern, as they are not removed by conventional processes wastewater treatment plants and discharged into the natural environment. This work proposes extracting drugs from using natural, renewable, non-toxic solvents such terpenes eutectic solvents. First, molecular simulation has been used with COSMO-RS ...

Engelsma M, KokWT and Smit HC (1990) Selective determination of trace levels of phenol in river water using electrochemical concentration modulation. Journal of Chromatography 506: 201}210. Fister JC, Jacobson C and RamseyM (1999) Ultra sensitive cross correlation electrophoresis on microdevices. Analytical Chemistry 71: 4460}4464. Kaljurand M and KuK llik E (1989) Computerized Multiple Input C...

For many years, high-speed countercurrent chromatography conducted in open tubing coils has been widely used for the separation of natural and synthetic compounds. In this method, the retention of the stationary phase is solely provided by the Archimedean screw effect by rotating the coiled column in the centrifugal force field. However, the system fails to retain enough of the stationary phase...