Sorption and Desorption of Lead on 5-Amino-1,3,4-Thiadiazole-2-Thiol Immobilized Silica Gel by Flame Atomic Absorption Spectrometry (FAAS)
作者： Canan Ekinci Dogan , Goksel Akcin
DOI: 10.1080/10739140802234907
关键词:
摘要: Abstract Silica gel was modified by 5-amino-1,3,4-thiadiazole-2-thiol via homogeneous routes to obtain immobilized silica sorbent (ATT-immobilized gel). This characterized using a variety of physical chemical techniques including, high resolution solid state 13C CP/MAS NMR, X-ray photoelectron spectroscopy (XPS), thermal analysis (TGA and DTA), elemental analysis, BET surface as well infrared (FTIR). The support used for sorption desorption leadions with from aquatic samples their determination FAAS. Lead ions can be desorbed 0.001 mol dm−3 EDTA. capacity lead is found in the range 48.20–49.50 µmol g−1(about 10.14 mg L−1) chelating matrix. Tolerance limits electrolytes are reported. Experimental data obtained batch equilibrium tests have also been analyzed Langmuir isotherm Freundlich equation. T...
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