Solid-state chemiluminescence assay for ultrasensitive detection of antimony using on-vial immobilization of CdSe quantum dots combined with liquid–liquid–liquid microextraction |
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| Authors: | Isabel Costas-Mora Vanesa RomeroIsela Lavilla Carlos Bendicho |
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| Institution: | Departamento de Química Analítica y Alimentaria, Área de Química Analítica, Facultad de Química, Universidad de Vigo, Campus As Lagoas-Marcosende s/n, 36310 Vigo, Spain |
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| Abstract: | On-vial immobilized CdSe quantum dots (QDs) are applied for the first time as chemiluminescent probes for the detection of trace metal ions. Among 17 metal ions tested, inhibition of the chemiluminescence when CdSe QDs are oxidized by H2O2 was observed for Sb, Se and Cu. Liquid–liquid–liquid microextraction was implemented in order to improve the selectivity and sensitivity of the chemiluminescent assay. |
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| Keywords: | Quantum dots Immobilization Solid-state chemiluminescence Sb(III) and total antimony Liquid&ndash liquid&ndash liquid microextraction |
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