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AB-083 Determination of sodium with the ion-selective electrode  
Determination of sodium with the ion-selective electrode

The determination of sodium with the sodium ISE represents a selective, rapid, accurate and favorably-priced method which is described in this Bulletin. Examples are used to show how determinations can be carried out with the 692 pH/Ion Meter using either direct measurement or the standard addition technique. The sodium concentration has been determined in standard solutions, water samples (tap water, mineral water, wastewater), foodstuffs (spinach, baby food) and urine. The construction, working principles and areas of application of the two Metrohm ion-selective sodium electrodes – the 6.0501.100 Glass membrane ISE and the 6.0508.100 Polymer membrane ISE – are explained in detail.


German:  AB_083_5_d.pdf (451 KB)
:  AB_083_5_e.pdf (447 KB)

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   Determination of sodium with the ion-selective electrode