The present paper focuses on the development of a flow-through cell and a closed circuit that permit to carry out measurements of low electrolytic conductivity of aqueous solutions under flowing condition. The traceability path has been set as follows: samples with conductivity between 200 μS cm-1 and 50 μS cm-1 have been employed for the calibration of the geometric constant of the new cell, by comparison with the primary cell of Istituto Nazionale di Ricerca Metrologica (I.N.Ri.M.). Then the flow-through cell has been used to measure values with decreasing conductivities down to 1 μS cm-1. The measurement system capabilities have been evaluated to be limited by contamination effects.
Development of a flow-through cell for accurate measurements of low electrolytic conductivity / Boveri, C; Durbiano, Francesca; Serazio, D.. - (2009), pp. 117-121. (Intervento presentato al convegno XIX IMEKO World Congress Fundamental and Applied Metrology tenutosi a Lisbona nel Settembre 6 - 11).
Development of a flow-through cell for accurate measurements of low electrolytic conductivity
DURBIANO, FRANCESCA;SERAZIO D.
2009
Abstract
The present paper focuses on the development of a flow-through cell and a closed circuit that permit to carry out measurements of low electrolytic conductivity of aqueous solutions under flowing condition. The traceability path has been set as follows: samples with conductivity between 200 μS cm-1 and 50 μS cm-1 have been employed for the calibration of the geometric constant of the new cell, by comparison with the primary cell of Istituto Nazionale di Ricerca Metrologica (I.N.Ri.M.). Then the flow-through cell has been used to measure values with decreasing conductivities down to 1 μS cm-1. The measurement system capabilities have been evaluated to be limited by contamination effects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
