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Keywords HPLC-MS/MS QuEChERS capillary electrophoresis chemically modified electrodes chromatography-mass spectrometry concentration determination digital colorometry extraction gas chromatography gold nanoparticles high-performance liquid chromatography inductively coupled plasma mass spectrometry liquid chromatography nanoparticles sample preparation smartphone soil solid-phase extraction sorption voltammetry

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Vol 80, No 10 (2025)

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