Determination of nickel at trace levels in Saint John’s wort tea by using a solidification of floating organic droplet-based liquid-liquid microextraction method followed by matrix matching assisted slotted quartz tube-flame atomic absorption spectroscopy

5th International Congress on Analytical and Bioanalytical Chemistry (5th ICABC 2024), Antalya, Türkiye, 4 - 07 Mart 2024, (Özet Bildiri)