Potential and pitfalls of XRF-CS analysis of ion-exchange resins in environmental studies.

ABSTRACT: Detecting clandestine, intermittent release of heavy metal pollution into natural and man-made water ways is challenging. Conventional chemical methods are both labor intensive and expensive. A recent approach combining ion-exchange resins with the capabilities of X-ray fluorescence core scanners (XRF-CS) therefore is of great interest. In short, ion-exchange resin is deployed in the water using small sachets, the resin is then collected, dried, filled into sample holders and scanned using XRF-CS. Ion-exchange resins take up heavy metals in proportion to the concentration in the ambient water, with a correlation coefficient (R²) between concentration and XRF-CS counts better than 0.96 for most elements. However, a number of parameters influence the measurements. Different drying

SUBMITTER: Lowemark L 

PROVIDER: S-EPMC8536750 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature