Ion exchange and binding in selenium remediation materials using DNP-enhanced solid-state NMR spectroscopy #DNPNMR

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Ion exchange and binding in selenium remediation materials using DNP-enhanced solid-state NMR spectroscopy #DNPNMR

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05-06-2019, 04:47 PM

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Ion exchange and binding in selenium remediation materials using DNP-enhanced solid-state NMR spectroscopy #DNPNMR

From The DNP-NMR Blog:

Ion exchange and binding in selenium remediation materials using DNP-enhanced solid-state NMR spectroscopy #DNPNMR

Mais, Marco, Javier Torroba, Nathan S. Barrow, Subhradip Paul, and Jeremy J. Titman. “Ion Exchange and Binding in Selenium Remediation Materials Using DNP-Enhanced Solid-State NMR Spectroscopy.” Solid State Nuclear Magnetic Resonance 98 (April 2019): 19–23.

https://doi.org/10.1016/j.ssnmr.2019.01.004.

Selenate-loaded selenium water remediation materials based on polymer fibres have been investigated by dynamic nuclear polarization (DNP) enhanced solid-state NMR. For carbon-13 a significant reduction in experiment time is obtained with DNP even when compared with conventional carbon-13 NMR spectra recorded using larger samples. For the selenium remediation materials studied here this reduction allows efficient acquisition of {1H}-77Se heteronuclear correlation spectra which give information about the nature of the binding of the remediated selenate ions with the grafted side chains which provide the required ion exchange functionality.

Go to The DNP-NMR Blog for more info.

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