Flow device improves accuracy and reproducibility of chemical reactions

05 December 2022

For labs looking to improve accuracy, reproducibility, and yield from liquid phase chemical reactions, TESTA Analytical Solutions e.K has developed the Chemistry flowmeter.

Accurately measuring the rate of addition of liquid reagents is a critical consideration for many labs undertaking batch or flow chemistry reactions. When using peristaltic or piston pumps to add chemicals or other fluids into a reaction, it is important that the rate of addition is both accurate and constant as part of quality control. Without accurate flow measurement, too much or too little chemical can be injected into a reaction. Also, if the rate of addition of reagents is not constant this can also result in adverse outcomes, expensive reagent overuse, lower final product yield and safety issues. In fact, inaccurate flow measurement can mean the difference between profits and lost revenue.

Designed to be compatible with most solvents, acids, and bases – the Chemistry flowmeter is compact in size and is powered via a USB connection. It uses a thermal flow sensor that is extremely accurate, sensitive, and high-resolution. As the sensor is non-invasive it can operate over a wide dynamic range and has been demonstrated to be the perfect real-time flow measurement tool for monitoring both batch and flow chemistry reagent addition pumps.

The Chemistry flowmeter utilises a PC-based app for continuous recording, display and storage of the measured flow rates. The current reagent addition flow rate is also displayed on the devices integral display.


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