Thirty-four edematous cardiac patients who were being treated with cation exchange resin were studied for its long term effectiveness and for clinical and chemical complications. In 23 of 27 patients the resin was effective in terms of mobilizing edema fluid previously refractory to other forms of treatment, of partial or complete substitution for mercurial diuretics, and of permitting a slight...

The use of alkyl levulinates is growing interest in fuels. Adding n-butyl levulinate (BL) to fuels presents some benefits compared ethyl levulinate. conventional production route BL from the esterification levulinic acid, but latter compound corrosion issues. Alcoholysis fructose by butanol over cation exchange resins (solid catalyst) seems be a better alternative. effect water addition, solven...

Ion-exclusion/cation-exchange chromatography (IEC/CEC) on a weakly acidic cation-exchange resin using on acidic eluent, developed by Tanaka et al. in 1994, has been employed to monitor the quality of environmental water samples such as acid rainwater and river water, to analyze body fluid samples such as saliva, and to evaluate water purification by photocatalytic materials.1–8 One advantage of...

This paper introduces a new off-line sample preparation that eliminates carbohydrates from amino acid samples containing a high carbohydrate content before analysis by anion-exchange chromatography and integrated pulsed amperometric detection. First, the sample is introduced into a cation-exchange column in the hydrogen form. Carbohydrates are removed completely using 0.02% formic acid as a tra...

cation exchange capacity and specific surface area are among some of the important soil characteristics the direct measurement of which is laborious, costly and time consuming. therefore, fractal dimension of particle size distribution has been widely studied in relation with many such dynamic and static processes as transmission of water and solutes, water holding capacity, heat storage and co...

The separation and quantitative measurement of aminoacids by ion-exchange chromatography has been in use for many years ]. However, the value of this method is limited by the time required for the analysis: 6 to 23 h. Other methods, such as gas chromatography, give results more rapidly, but do not allow the separation of all amino-acids [2]. The development of cation-exchange resins, capable of...

INTRODUCTION Accurate and precise determination of inorganic As (III/V) redox species is important in the interpretation of its toxicity and mobility in acid mine waters. Several analytical methods use arsine generation to separate arsenic species but high metal concentrations can suppress arsine production (Creed and others 1996). The potential inhibition of arsine formation by eleven metal sp...