Polyester membrane electrodes, containing TCNQ units

Polyester membrane electrodes containing TCNQ units (51) were used for determination of Ag(I) in concentrations ranging from 10-8 to 1 M. The determination consists of various steps. First the membrane is brought to the reduced state in LiCl solution, as shown in reaction 12. The conditioned membrane is then dipped into the sample solution where ion exchange and a redox process take place, as shown in reaction 13 the existence of Ag(0) in the membrane was demonstrated by XPS, ESR and Raman spectra. Finally, silver is determined in the anodic stripping step 14146. 

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See also in sourсe #XX -- [ , ]

See also in sourсe #XX -- [ , ]

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