Catalog: Sodium determination by direct potentiometry made easy with Metrohm's two Na ISE
Company/Brand: Metrohm AG
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| | sodium determination by direct potentiometry made easy with metrohms two na ises
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| | sodium determination by direct potentiometry now even simpler and more selective direct measurement the determination of sodium with the sodium ise is a selective rapid accurate and favorably-priced method as is the case for all ion-selective electrodes the na ise senses the ionic activity which can therefore be measured directly in the sample solution however the influence of possible interfering ions must be taken into account for real samples information about the ionic strength of the solution is normally not available this means that the activity coefficient of the measuring ion is not known ...
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| | brane ise it is also no longer necessary to work with a double-junction reference electrode the use of ckcl 3 mol/l as the reference electrolyte provides excellent results as far as correctness and precision are concerned this means that a bridge electrolyte such as is used with the glass electrode tisab solution is superfluous as mentioned above the polymer membrane ise is characterized by its outstanding selectivity for na ions the cross-sensitivity towards other cations with the same charge and a similar ionic size and towards protons in particular is greatly reduced in comparison with the ...
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| | 40093 subject to modifications printed by metrohm ltd herisau 2001-09 4 ion-selective sodium electrodes
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