Ion Exchange Kinetics of Mg(II) from Aqueous Solutions with 732 Cation-exchange Resin

2016 ◽  
Vol 17 (2) ◽  
pp. 1-10 ◽  
Author(s):  
Jia Qian ◽  
Yiwen Liu ◽  
Weilan Xue ◽  
Zuoxiang Zeng
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics ◽  
Kinetics Of

Simplified radioimmunoassay of urinary drugs of abuse adsorbed on ion-exchange papers.

1977 ◽  
Vol 23 (10) ◽  
pp. 1921-1924 ◽  
Author(s):  
G J Alexander ◽  
S Machiz
Keyword(s):  
Ion Exchange ◽  
Cation Exchange ◽  
Drugs Of Abuse ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Screening Procedure ◽  
Central Laboratory ◽  
Small Disc

Abstract A convenient screening procedure for presence of drugs of abuse in urine consists of two steps: adsorption of the drugs from urine onto a paper loaded with cation-exchange resin and detection of the adsorbed drugs by direct radioimmunoassay. The first step can be performed in the field, the second in a central laboratory. Storage and transport to the laboratory are simplified because specimens adsorbed on dried paper are stable and can be sent in letter-mail. In the laboratory, a small disc of the ion-exchange paper is exposed to antigen and antibody, rinsed, and tested for radioactivity. Discs treated with positive urines are more radioactive than discs from negative urines.

Ion exchange kinetics of magnetic alginate ferrogel beads produced by external gelation

2014 ◽  
Vol 111 ◽  
pp. 198-205 ◽  
Author(s):  
Vânea Ferreira Torres Teixeira ◽  
Nádia Rosa Pereira ◽  
Walter Ruggeri Waldman ◽  
Ana Luiza Cassiano Dias Ávila ◽  
Victor Haber Pérez ◽  
...  
Keyword(s):  
Ion Exchange ◽  
External Gelation ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics ◽  
Kinetics Of

Kinetics of alkali ion exchange of irradiated glasses

2003 ◽  
Vol 792 ◽  
Author(s):  
Michael I. Ojovan ◽  
William E. Lee
Keyword(s):  
Ion Exchange ◽  
External Irradiation ◽  
Glass Temperature ◽  
Ion Exchange Kinetics ◽  
Radiation Induced ◽  
Exchange Kinetics ◽  
Induced Changes ◽  
Kinetics Of ◽  
Alkali Ion

ABSTRACTThe kinetics of alkali ion exchange of irradiated glasses were investigated using the structural energy barrier model for ion exchange of glasses. Derived rates of alkali ion exchange depend both on irradiation dose D(Gy) and dose rate q(Gy/s) illustrating that some effects cannot be simulated by external irradiation and require in-situ measurements. Higher D and q lead to increased ion exchange rates. Significant changes occur in the activation energies demonstrating a 4 – 6 times decrease depending on glass composition. Radiation-induced changes are higher at relatively low temperatures and are diminished by increased glass temperature. Numerical estimations show that changes in alkali ion exchange kinetics occur at D far below damaging doses.

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