Flow calorimetry, which is ideally suited for measuring reactions oc­ curring at the liquid/solid interface, has been used to study the surface chemistry of many types of solids, but little use of it has been made in the study of surface reactions of soils. The purpose of this study was to demonstrate the application of flow calorimetry to the study of two fun­ damental soil chemical processes,...

A detailed procedure for the quantitative determination of metanephrine and normetanephrine is given. Epinephrine and norepinephrine are eliminated by selective adsorption on an alumina column. Metanephrine and normetanephrine are isolated with a cation-exchange resin. Fluorescence is developed by a two-step ferricyanide oxidation at two different pH values followed by tautomerization. The conc...

The estimation of urinary catecholamines has assumed clinical significance mainly because of its value in the diagnosis of phaeochromocytoma (Engel and Euler, 1950; Euler, 1951). Since biological methods have obvious limitations for routine work, various chemical methods have been developed (Lund, 1950; Pekkarinen and Pitkanen, 1955; Euler and Floding, 1955a, b). They are based on the same prin...

are relatively few, and generally are related to either inadvertent transfusion of incompatible blood or the outcome of some severe form of injury. The latter may follow a surgical operation or be the result of massive trauma incurred during combat. The consequent renal insufficiency is often temporary in nature, and efforts are directed at prolongation of life by sustaining the patient through...

Electrolyte balances were measured in foutr edematous (ardliae patients receivin..g cation exchaitge resin. It was found that such theralp would increase the fecal loss of sodium anl, in some of the cases, would result in the loss of edema which had been refractory to otlher forms of therapy. In these cases the maian route of sodium excretion was through the kidneys awlnd not through the intest...

Uptake of alkane (C5-C9) and alcohol (C4-C7) solutes by both strong acid cation exchange resins and strong base anion exchange resins in aqueous medium has been studied. The amount of solute taken up by resins is directly proportional to the solute concentration equilibrium with resins. Hydrophobic interaction between the solute and the resin matrix appears to play an important role in the upta...

A single column cation exchanger resin was used to eliminate cations from renet cheese whey, with particular reference to the improvement of taste and flavor. Ten panelists were convened to assess the contribution of the mineral components to the salty taste of whey, judging on the basis of taste, flavor and color. The organoleptic characteristics of untreated whey were arbitrarily assigned a s...