Sponsor
Christopher Spiese, PhD
Ohio Northern University
Chemistry & Biochemistry, Science, Technology, and Mathematics
c-spiese.1@onu.edu
Advisor(s)
Christopher Spiese, PhD
Ohio Northern University
Chemistry & Biochemistry, Science, Technology, and Mathematics
c-spiese.1@onu.edu
Document Type
Poster
Location
ONU McIntosh Center; Activities Room
Start Date
22-4-2022 10:00 AM
End Date
22-4-2022 11:00 AM
Abstract
This study compares four methods for pre-concentration and preservation of dissolved phosphorus species forP-31 NMR analysis. P-31 NMR enables differentiation among classes of phosphorus compounds: orthophosphate, phosphate esters, nucleic acids, polyphosphate, and phosphonates. A variety of water samples were obtained from rivers, lakes, groundwater, wastewater treatment plants, wetlands, and tiles. Four methods utilizing different metals were then used to concentrate phosphorus to a level sufficient to permit P-31 NMR analysis. From these analyses, the depletion or enrichment of specific phosphorus species in natural waters can be determined. These data will help elucidate phosphorus speciation in the dissolved phase and enable more robust analysis of phosphorus biogeochemistry.
Recommended Citation
Neal, Elliette Elizabeth, "Precipitation and Analysis of Dissolved Phosphorus by P-31 NMR" (2022). ONU Student Research Colloquium. 38.
https://digitalcommons.onu.edu/student_research_colloquium/2022/posters/38
Restricted
Available to ONU community via local IP address and ONU login.
Precipitation and Analysis of Dissolved Phosphorus by P-31 NMR
ONU McIntosh Center; Activities Room
This study compares four methods for pre-concentration and preservation of dissolved phosphorus species forP-31 NMR analysis. P-31 NMR enables differentiation among classes of phosphorus compounds: orthophosphate, phosphate esters, nucleic acids, polyphosphate, and phosphonates. A variety of water samples were obtained from rivers, lakes, groundwater, wastewater treatment plants, wetlands, and tiles. Four methods utilizing different metals were then used to concentrate phosphorus to a level sufficient to permit P-31 NMR analysis. From these analyses, the depletion or enrichment of specific phosphorus species in natural waters can be determined. These data will help elucidate phosphorus speciation in the dissolved phase and enable more robust analysis of phosphorus biogeochemistry.