Journal
MICROCHIMICA ACTA
Volume 185, Issue 1, Pages -Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-017-2596-2
Keywords
Organic-metal nanowire; Immobilized metal ion affinity chromatography; Cis-diols; Matrix interference; One-pot solvothermal synthesis; Dissolution-recrystallization formation mechanism; Langmuir adsorption mechanism; Coordination interaction; ZrO2; CeO2
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Funding
- National Basic Research Program of China (973 Program) [2013CB910702]
- National Natural Science Foundation of China [21475098, 2163506, 31670373]
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The authors have immobilized nanowires made from zirconium glycerolate (ZrGly) on magnetite (Fe3O4) nanoparticles by applying a solvothermal growth process using metal-glycerolate as a precursor. The structure and the dissolution-recrystallization mechanism of the resulting Fe3O4@ZrGly composite were investigated by attenuated total reflection-FTIR, energy-dispersive X-ray analysis, thermogravimetric analysis and solid-state cross polarization/magic angle spinning C-13 NMR spectroscopy. The interaction between the zirconium glycerolate in Fe3O4@ZrGly and cis-diols leads to efficient adsorption of riboncleosides which then can be quantified by HPLC with UV detection. The sorbent was successfully applied to the selective enrichment of adenosine, cytidine, uridine and guanosine from spiked human urine samples. The detection limit of the method is in the range from 1.7 to 19 ng.mL(-1) of nucleosides in spiked human urine, with relative standard deviations of lower than 12.4% and recoveries ranging from 90.6 to 113%.
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