Mass Spectrometry & Spectroscopy

  • Passive Sampling of Mercury in Ambient Air with Superior Detection Performance

Passive Sampling of Mercury in Ambient Air with Superior Detection Performance

Jan 17 2020 Read 955 Times

Mercury is an air pollutant of global concern because of its high toxicity and ability to bio-accumulate in the food chain. Currently the monitoring of mercury in ambient air is not as extensive as it should be due to the limited number of monitoring sites around the globe.

Cost effective monitoring solutions are, therefore required for widespread and unique deployment in order for a better understanding of the Hg distribution and occurrence.

The employment of Atomic Fluorescence Spectroscopy (AFS) with either cold vapour generation for the ultra-sensitive detection of Hg has been PS Analytical’ s core competency for over 30 years.

PS Analytical introduce the use of passive samplers (based on gold amalgamation Amasil traps) in conjunction with the highly sensitive and selective lab based AFS

When deployed in the field for several months the traps pre-concentrate a sufficient mass of mercury to be analytically measured. These traps are then collected and returned to the lab for analysis by dual-amalgamation AFS.

The mercury that is collected on these traps is thermally desorbed and carried to the analyser for quantification.

The reusable traps may then be redeployed again for further air monitoring.

PSA works with many industries, organisations and markets to deliver industry leading analysers. The systems are used to analyse; waters, soils, sediments, air, stack gas, blood, urine, food and beverage, petrochemicals, polymers, minerals and many other sample types.

More information online: https://ilmt.co/PL/LDoP

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