Conductometric titration works where other methods struggle

What if you could determine challenging sample parameters quickly, accurately, all without dealing with fragile sensors or colour indicators? In labs where reliability and efficiency matter most, conductivity titration offers a powerful yet often underappreciated solution.

Conductometric titration, also called conductivity titration, is an analytical method based on the change of conductivity while adding a titrant. The change in conductivity is measured with a conductivity sensor after each titrant addition.

Various industries, including the food and petrochemical sectors, utilise this method as it allows the determination of parameters in samples that are often difficult to quantify with other titration approaches.

Conductivity titration is a monotonic endpoint titration, which means that the titrant is added in fixed volume increments. Executing this task involves employing a magnetic or overhead stirrer, a dosing tip, and the conductivity sensor. It must be noted however, that the most important consideration when performing conductivity titrations is a fast sensor response.

This method has many advantages over classical potentiometric titration as the conductivity sensor is extremely durable, requires no preconditioning, and can be cleaned effortlessly. The sensor also requires no maintenance and since the ions involved in the reaction are measured directly, there is no need for an indicator. Additionally, as you don't need a colour indicator, it means it's possible to titrate coloured and turbid samples. Finally, even weak acids can be titrated since this method gives sharp endpoints for these kinds of samples.

OMNIS makes conductometric titrations simple to run. Depending on the reaction, the user is able to adjust the titration parameters to achieve reliable results. Even if a curve is difficult to evaluate, OMNIS aids users with its comprehensive toolbox, including allowing the addition of optimal tangents to the curve. Additionally, users can establish a measuring window to pinpoint the specific area where the endpoint should be identified. This can be flexibly adjusted for both the conductivity and the volume.

In conclusion, conductivity titration is a valuable analytical method for determining the concentration of ionic compounds in solutions as it offers a fast and precise alternative to conventional titration methods. Furthermore, Metrohm's OMNIS software improves the efficiency and accuracy of conductometric titration, as the user has ultimate control and precision over the analysis with functions like smoothing, defining linear range, adjusting weighting factors, and flexible endpoint evaluation.

To read more, please click here: Conductometric titration works where other methods struggle | Metrohm