- NPL is leading a European Metrology Research Programme (EMRP) research project to establish a metrological infrastructure for energy gases from non-conventional sources.
- This Joint Research Project funded under the EMRP addresses the need for improving the metrological traceability and comparability of measurement results in current air monitoring techniques.
Trace Analysis & Electrochemistry
- Some heavy metals are known to be toxic and carcinogenic. They are emitted during industrial processes and through the abrasion and degradation of metal-containing materials. Heavy metals are present in the air in particulate matter (PM) and, in the case of mercury, also in the vapour phase.
- Measurement of mercury in the environment is of growing importance due to its high toxicity. Recent European legislation requires the UK Government to monitor the mercury content of ambient air – NPL is responsible for carrying out these measurements at 13 locations around the UK as part of the UK Heavy Metals Monitoring Network.
- Since its discovery in 1974, surface enhanced Raman spectroscopy (SERS) has been used to detect and characterise a variety of chemicals and biological species. At NPL, our research focuses on improving the repeatability and reproducibility of SERS and understanding the mechanisms underpinning the method. This is targeted at overcoming barriers for the uptake of this technique as a powerful commercial tool for trace analysis.