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Cadmium determination at trace levels in lake water samples by cold vapor generation-atomic absorption spectrometry after magnetic dispersive solid phase extraction

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CHEMICAL PAPERS
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SPRINGER INT PUBL AG
DOI: 10.1007/s11696-023-02963-5

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Cadmium; Antarctica; Manganese ferrite nanoparticle; Cold vapor generation; Magnetic dispersive solid phase extraction

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This study developed an analytical method using manganese ferrite nanoparticles as an adsorbent for the determination of trace levels of cadmium in lake water samples collected from Horseshoe Island, Antarctica. The method involved magnetic dispersive solid phase extraction (MDSPE) followed by cold vapor generation-atomic absorption spectrometry (CVG-AAS). The optimized method showed good recovery results from spiked samples, indicating its suitability for real samples.
This study established an analytical method based on manganese ferrite based magnetic dispersive solid phase extraction (MDSPE) before cold vapor generation-atomic absorption spectrometry (CVG-AAS) for the determination of cadmium at trace levels in lake water samples collected from Horseshoe Island, Antarctica. Manganese ferrite nanoparticles were synthesized to be used as an adsorbent in the MDSPE method. Different MDSPE and CVG parameters were fixed to their optimum values after univariate optimization approach. Under the optimum conditions, analytical performance of the developed MDSPE-CVG-AAS method was evaluated and its applicability/accuracy was determined by recovery experiments. Twelve different lake water samples collected from Horseshoe Island, Antarctica were analyzed. Matrix matching calibration strategy was used to eliminate possible matrix effects arising from the lake water samples. Good recovery results (93.2-112.5%) were obtained from the spiked samples that indicated the method suitability to real samples.

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