A. A. Tameem, S. Salhin Mohamed, A. Alnaas, and E. Kusrini, “Biogenic Amine Determination by High-Performance Liquid Chromatography Using a Sol Gel Immobilized 2 Hydroxy 5 nitrobenzaldehyde 2,4 dinitro phenyl hydrazone Solid Phase Extractant”, Kompl. Ispolz. Min. Syra = Compl. Use of Min. Resour., vol. 344, no. 1, pp. 46–54, Apr. 2026.