首页|Determination of dissolved nickel in natural waters using a rapid microplate fluorescence assay method

Determination of dissolved nickel in natural waters using a rapid microplate fluorescence assay method

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  • NSTL
  • Elsevier
A new microplate analytical procedure is described for the determination of nickel (Ni2+) ions in natural water samples. A lophine analogue fluorescent sensor was synthesized and a spectral study showed a selective fluorescence quenching effect of chemical sensor by Ni2+ under optimized conditions. Density functional theory (DFT) calculations confirmed the formation of a Ni(II)L-3 complex obtained by the Job plot. The calculations showed that the fluorescence emission peak of L collapses due to the distortion of L in the complex. The simple and fast microplate procedure allowed us to quantify Ni2+ with a linear response from 1.6 to 40 mu g L-1 and a quantification limit of 5.4 mu g L-1 without the need of a preconcentration step. The optimized procedure using high-throughput microplate assay has been applied for the determination of Ni2+ in natural water samples with good analytical performances. (C) 2022 Elsevier B.V. All rights reserved.

Fluorescent chemical sensorNickelLophine derivativeHigh-throughput analysisNatural watersATOMIC-ABSORPTION-SPECTROMETRYSOLID-PHASE EXTRACTIONSIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATIONBASIS-SETSLOPHINE DERIVATIVESCORRELATION-ENERGYSAMPLESCOBALTLEVELAPPROXIMATION

Robert-Peillard, Fabien、El Mouchtari, El Mountassir、Bonne, Damien、Humbel, Stephane、Boudenne, Jean-Luc、Coulomb, Bruno

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Aix Marseille Univ

2022

10.1016/j.saa.2022.121170

Spectrochimica acta

Spectrochimica acta

ISSN：1386-1425
年,卷(期)：2022.275
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