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  • Ion-Selective electrodes  (1)
  • ionic sites  (1)
  • 1
    Electronic Resource
    Electronic Resource
    New method for determining the concentration of ionic impurities in solvent polymeric membranes (1995)
    Springer
    Microchimica acta 121 (1995), S. 269-279 
    Details
    ISSN: 1436-5073
    Keywords: ionic sites ; PVC ; Tecoflex® ; ion-selective electrodes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A new method is proposed for ascertaining the amount of ionic impurities in solvent polymeric membranes of ion-selective electrodes. The method is based on determining the selectivity coefficient for ions of different valences as a function of the concentration of a lipophilized tetraphenylborate salt added to the membrane phase. Thus, the concentration of anionic impurities in commercially available poly(vinyl chloride) and of cationic ones in Tecoflex® (a polyurethane) was obtained as 0.063 ± 0.016 and 0.044 ± 0.006 mmol/kg, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01248256
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Reminiscences of Professor Wilhelm Simon and his research work at the ETH Zürich (1995)
    Weinheim : Wiley-Blackwell
    Electroanalysis 7 (1995), S. 798-800 
    Details
    ISSN: 1040-0397
    Keywords: Potentiometry ; Ionophores ; Ion-Selective electrodes ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Symposium on Electrochemical Sensors was dedicated to the memory of the late Professor Wilhelm Simon. We all remember him as a remarkable and renowned scientist, and as an enthusiastic and inspiring lecturer. In particular, he was a pioneer in research on ion-selective electrodes. With this article, the authors would like to pay due reverence to him and to his outstanding contributions to analytical chemistry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elan.1140070903
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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