The Importance of Denitrification Analysis in Groundwater Research
Denitrification is the process by which nitrate (NO3) is reduced to nitrogen gas (N2) through intermediate steps. This process can significantly reduce nitrate concentrations in groundwater, which is an important aspect of groundwater protection and management. It helps mitigate the impact of agricultural runoff and other sources of nitrate contamination, making it essential to monitor and analyse effectively.
The N2/Ar method, supported by Hiden’s MIMS technology, enables researchers and water agencies to measure the excess nitrogen (excess N2) originating from denitrification. Accurate measurement of excess N2 provides a clearer understanding of the denitrification process, allowing for better assessments of groundwater quality and management decisions.
Adoption of the MIMS System for Groundwater Analysis
Our MIMS system, used to measure dissolved gases in groundwater, has been recognised for its capability to deliver reliable and detailed data. According to a recent report from the Lower Saxony State Environmental Agency titled “Measurement of Excess N2 in Groundwater Using the N2/Ar Method”, MIMS is highlighted as a suitable method for tracking changes in groundwater composition. It has been implemented at Aqua Service GmbH and GEO-data GmbH, among others, as part of broader efforts to improve nitrate management in various regions.
The installation of our pQA (Portable Quadrupole Analyser) at Aqua Service GmbH in Schwerin reflects growing interest in using the MIMS method for groundwater analysis. Aqua Service, which operates a well-equipped chemical analysis laboratory, intends to use the system to analyse groundwater samples for excess N2. This move is partly driven by new regulations in Mecklenburg-Western Pomerania that require water suppliers to assess reductive waters for excess N2 as part of their monitoring obligations.
Expanding the Use of the MIMS Method Across Germany
Following the installation of the pQA system at Aqua Service GmbH, there is an opportunity for other federal states to consider using the MIMS method for groundwater research. The system provides a robust means of measuring denitrification processes and understanding nitrate dynamics in groundwater bodies, which is increasingly relevant as regulatory standards evolve.
Hiden Analytical aims to support environmental agencies and research institutions across Germany in adopting the MIMS method as part of their groundwater quality monitoring programmes. We are preparing informational materials to raise awareness of the method and its potential applications.
Alex Rimmer from Hiden Analytical installing the pQA
Supporting Groundwater Quality Research
Hiden Analytical remains dedicated to providing solutions that contribute to environmental research and groundwater monitoring. Find out more about the pQA: Click here. For more information on our MIMS systems and their applications, please contact us.
