When and Why Are Trace Elements Measured?

Trace elements are measured for a variety of reasons. In environmental analysis, for example, heavy metals like mercury, lead, cadmium, and arsenic can be harmful to human health and ecosystems. Monitoring soil, water, and plant samples helps ensure environmental safety. Additionally, even common elements like carbon, hydrogen, and sulfur can be significant indicators of climate change when their levels change.

I enjoy knowing that I contribute to a cleaner, safer world by enabling more data collection on pollution levels, especially when combined with analysis devices from other manufacturers.

Pharmaceutical companies increasingly use TEA to verify the purity of their final products. However, the applications go far beyond that—nearly every industry that deals with chemical composition requires precise and reproducible flow control. That’s why we often assist in selecting and optimizing equipment for trace element measurement. We analyze the accuracy, repeatability, and speed of the device and translate those needs into a suitable flow solution. Our wide range of products allows us to tailor our offerings to meet specific requirements.

What Is the Role of a Flow Controller in Elemental Analysis?

During the analysis process, the elements in a sample are first separated and then detected. A carrier gas is used to transport the separated components, and additional gases may be needed for chemical or physical reactions that help identify the elements. The purity of these gases is crucial because the elements being measured are present in extremely low concentrations. Therefore, flow controllers and meters must be both highly accurate and extremely reproducible. This ensures that results are not only correct but also consistent, whether the analysis is repeated the next day or in a remote location like a mountain in Switzerland.

What Are the Specific Needs and Requirements?

The requirements for flow meters and controllers can vary significantly depending on the type of analysis device. Factors such as the device's design, signal processing method, control system, and power supply all play a role in the selection process. Price is also an important consideration. Since our engineers work closely with our customers, we’re able to deliver high-quality, customized solutions that meet their unique needs.

Bronkhorst flow controllers already have self-diagnostic capabilities to monitor the instrument's condition. We're also exploring predictive maintenance options, such as analyzing valve tension to predict potential issues. Right now, I'm focusing on understanding the specific needs of pharmaceutical companies when measuring trace elements. I'd love to hear from readers who have insights or questions on this topic!