The electrical conductivity of solutions is determined by the movement of ions under the influence of an electric field, which is accompanied by the transfer of matter. It depends on several factors, including the nature of the dissolved substance and solvent, the degree of dissociation, ion mobility, temperature, pressure, and concentration.
Conductometry is a set of electrochemical analysis methods based on measuring the electrical conductivity of solutions, colloids, solids, and water. To determine the concentration of dissolved salts, acids, and bases, it is essential to have a conductometer in the laboratory.
Depending on the model, the device can measure conductivity using either contact or non-contact methods. Modern conductometers often integrate additional sensors within a single unit, including TDS meters, thermometers, and pH meters. Conductometers vary in cost and typically consist of the following main components:
conductivity sensor: built-in or remote;
controller for processing and conversion of data from the sensor;
display to show the results;
control system.
During measurement, two electrodes are placed in the solution, and an alternating voltage is applied. The equipment measures the electrical resistance of the current, and the result is displayed on the screen.
Conductometers are available from leading manufacturers of laboratory equipment. To purchase a device that meets all requirements and fits your budget, it is important to consider the following criteria:
Type: manual, portable, stationary, laboratory.
Multifunctionality and variety of measurements: conductivity, amount of dissolved solids, salinity, resistivity, acidity, redox potential, temperature, ions.
Range, discreteness, accuracy of analysis.
Automatic calibration — improves the accuracy of results and reduces the time to perform the study.
Sensor characteristics.
Protection standard.
Additional features: automatic shutdown, self-diagnosis, recognition of buffer solutions, recording of results, data transfer to a PC.
Before buying a conductometer, pay attention to whether it includes an automatic temperature compensation function. This feature accounts for the influence of temperature on conductivity and adjusts the result to a standard temperature.
Bimedis Medical Equipment Marketplace offers a selection of reasonably priced conductometers. With a wide range of new and used devices available, finding high-quality equipment is easy. Reliable sellers, competitive prices, international recognition, and user-friendly service are key advantages of the site. For consultations, please contact our managers.