Conductometric cell

A virtual device  for  assessing  the presence of heavy metals  in vegetables  is developed within  the LabVIEW systems  engineering  software.  The  quality  of  vegetable  juice  with  heavy  metals  contamination  is  studied  in  the  immitance-measuring way. Device  consists of  the  capacitive  transducer  (a  conductivity  cell  filled with  investigated  fluid – vegetable  juice with various additives), USB-6009 unit, connected to a computer with the full-speed USB interface.

Vegetables’  pollution  by  mercury,  copper,  zinc  and  arsenic  concerning  the  EU  standards  is  not  permitted, whereas in Ukraine it has to be within the limits of permissible concentrations. The urgent task is to develop an express method for controlling  the  concentrations  of  heavy  metals  in  vegetable  production. We  have  investigated  the  electrical  characteristics  of vegetable juices aiming the operative control of heavy metals concentrations in them.