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High-Throughput Measurement and Classification of Organic P in Environmental Samples
Published on: June 8, 2011
Nuclear magnetic resonance-based quantification of organic diphosphates
Stepan Lenevich1, Mark D Distefano
1Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA.
Analytical Biochemistry
|September 14, 2010
Summary
Quantify organic diphosphates and bisphosphonates using phosphorus-31 NMR spectroscopy. This method uses a capillary tube with a secondary standard for accurate concentration determination in biological samples.
Area of Science:
- Biochemistry
- Analytical Chemistry
Background:
- Phosphorylated compounds play crucial roles in biological systems.
- Accurate quantification of these compounds is essential before biological evaluation.
Purpose of the Study:
- To develop and present a reliable method for quantifying organic diphosphates and bisphosphonates.
- To enable precise concentration determination of phosphorylated compounds for research.
Main Methods:
- Utilized phosphorus-31 nuclear magnetic resonance (NMR) spectroscopy.
- Employed standard instrumentation with a capillary tube containing a secondary standard.
- The method allows for specific quantification down to 200 microM concentrations.
Main Results:
- Successfully quantified concentrations of organic diphosphates and bisphosphonates.
- The capillary tube served as a reference for quantification and a source of deuterated solvent for NMR signal locking.
- Demonstrated specificity and sensitivity of the NMR-based method.
Conclusions:
- The described (31)P NMR method provides a specific and accurate way to determine concentrations of diphosphates and bisphosphonates.
- This technique is valuable for researchers working with phosphorylated compounds in biological contexts.
- The use of a capillary tube simplifies and enhances the quantification process.
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