Sulphate-selective optical microsensors: overcoming the hydration energy penalty

作者: Tomàs Guinovart , Pascal Blondeau , Francisco J. Andrade

DOI: 10.1039/C5CC02350E

关键词: Hydration energyAqueous mediumEnhanced sensitivityPolystyrene microsphereChemistryDivalentSelectivityInorganic chemistry

摘要: Novel membrane-free chemically modified polystyrene microspheres for the optical detection of sulphate in aqueous media are introduced. The working principle this sensor is based on surface mass-extraction equilibrium target species. This allows overcoming strong hydration energy penalty, a typical problem divalent anions. exhibits both enhanced sensitivity and selectivity, which accurate biological samples. To illustrate these features determination urine presented.

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