Automatic Potentiometric TitratorWhen choosing, you can refer to the following points:

1. Clearly define measurement requirements

Analysis object and titration type

Select the appropriate indicator electrode and titration method based on the type of substance to be tested.

Measurement range and accuracy

Scientific research or high-precision analysis requires the selection of instruments with a titration accuracy of 0.1 μ L and a resolution of 0.1mV; Industrial rapid testing can accept slightly lower accuracy.

2. Core function matching

Titration mode

Basic functions: Supports potentiometric titration, preset endpoint titration, and volumetric titration.

Advanced features: photometric titration (improves sensitivity), conductivity titration (specific reaction monitoring), multi-mode automatic switching.

Terminal judgment method

Differential titration method: suitable for endpoints with flat titration curves.

Pre established endpoint titration method: suitable for reactions with steep titration curves.

Second derivative method (Δ ² E/Δ V ²): automatically identifies potential jump points and eliminates human errors.

Automation and Efficiency

Titration speed: High speed titration and automatic continuous titration function are required for the analysis of a large number of samples.

Dynamic feed: Automatically adjust the flow rate of titrant based on potential changes.

3. Hardware configuration requirements

Electrode compatibility

Confirm that the instrument supports multiple electrode interfaces for easy replacement of reference and indicator electrodes.

Titration system accuracy

High precision measuring tubes and low pulse titration technology ensure data reliability.

Operation interface and display

Simplified operation process with Chinese LCD screen or color touch screen, supporting real-time curve display and result printing.