Monitoring the Chloride Concentration in International Scheldt River Basin District Water Using a Low-Cost Multifunction Data Acquisition Board

Water

WandaJ. Guedens¹  Monique Reynders²  Jan Yperman²  Robert Carleer²  Koen Van Vinckenroye² 

[1] Biomolecule Design Group, Institute for Materials Research, Hasselt University, Campus Diepenbeek, Agoralaan-Building D, BE-3590 Diepenbeek, Belgium;Faculty of Sciences, Hasselt University, Campus Diepenbeek, Agoralaan-Building D, BE-3590 Diepenbeek, Belgium;

关键词: electroanalytical chemistry;    potentiometric titration;    ionic solutions;    multifunction data acquisition;    chloride;    solubility product;    natural surface water;    fresh river water;   

DOI  :  10.3390/w10081025

来源: DOAJ

【 摘 要 】

In analytical chemistry laboratories, to gather in the shortest time as many data as possible with the utmost accuracy and precision, high throughput automated setups are indispensable. In the present study, to determine the chloride concentration in the international Scheldt river basin district, experiments are carried out utilizing a thermostatically controlled semi-automated setup. A novel ICT-based method is developed using a low-cost multifunction Data Acquisition Board (DAQ) controlled by a homebuilt LabVIEW™ program. Specifically, this approach enables a correlation between different parameters i.e., droplet volume, temperature, A/D voltage conversions. Here, processing experimental data of a potentiometric precipitation titration utilizing a silver nitrate standard solution as titrant in a manual burette equipped with a controllable electronic valve allows for a preliminary indication of the titration end point via the Virtual Instrument (VI) numerical first derivative tool in the LabVIEW software. The LabVIEW tool is compared with the well-known Gran method implemented in the LabVIEW program, emphasizing an accurate performance of the setup to determine the chloride concentration in fresh river water. We are confident that our findings are evidence of the versatile and powerful features of the LabVIEW controlled DAQ in the analytical chemistry laboratory.

【 授权许可】

Unknown