Selective preconcentration and determination of sb(III) in natural waters using mercapto-resin

Eroğlu, Ahmet Emin


Selective Preconcentration of Gold from Ore Samples
Refiker, Hurmus; Merdivan, Melek; Aygun, Ruveyde Sezer (Hindawi Limited, 2018-9-12)
A simple and selective method has been developed for preconcentration of gold in ore samples. The method is based on use of N, N-diethyl-N’-benzoylthiourea (DEBT) as selective chelating agent and Amberlite XAD-16 as solid sorbent. Sorption behavior of gold with DEBT impregnated resin under optimized conditions has been studied in batch process. The gold ion capacity of the impregnated resin is calculated as 33.48 mg g<jats:sup>−1</jats:sup> resin (0.17 mmol g<jats:sup>−1</jats:sup> resin). The selective pre...
HOWARD, AG; Volkan, Mürvet; Ataman, Osman Yavuz (1987-02-01)
A surface-modified silica gel has been developed for the pre-concentration of arsenite from natural waters. The reaction of silica gel with (3-mercaptopropyl)trimethoxysilane produces a mercapto-modified silica gel with a silver capacity of ca. 0.9 mmol g–1. This material selectively removes arsenite from samples that also contain arsenate, monomethylarsonate and dimethylarsinate, and can be employed for both the column and batch pre-concentration of arsenite. Under column and batch conditions recoveries of...
Selective emitter formation via single step doping through laser patterned mask oxide layer for monocrystalline silicon solar cells
Çiftpınar, Emine Hande; Turan, Raşit; Department of Physics (2014)
Selective emitter is one of the new approaches for higher efficiency solar cells. Although selective emitter cells could be processed by several different methods such as; etch back process, laser doping, ion implantation, doping paste, a different method based on diffusion through a laser patterned oxide layer was studied in this thesis. Utilization of pattern oxide layer as a diffusion barrier enables to obtain selective emitter profile via single step doping which reduces overall production cost and time...
Selective recovery of pyruvic acid from two and three acid aqueous solutions by reactive extraction
Marti, Mustafa E.; Gürkan, Türker (Elsevier BV, 2015-12-17)
With single-stage extraction, approximately 40% of the acetic acid (AA) is preferentially and selectively recovered from the aqueous three-acid solution using 0.1 M trioctylamine (TOA) in 1-octanol. Pyruvic acid is the only solute positively affected by an increase in the TOA concentration; however, the purity of the final extract is compromised by co-extracted acids. The distribution coefficient (K-D) values obtained in three-acid solutions are lower than those obtained in single-acid solutions, showing th...
Selective monitoring and treatment of neuroblastoma cells with hydrogen sulfide activatable phototheranostic agent
Dirak, Musa; Kepil, Dilay; Almammadov, Toghrul; Elmazoglu, Zubeyir; Cetin, Sultan; Ozogul, Naz; Günbaş, Emrullah Görkem; Kolemen, Safacan (2023-02-01)
© 2022 Elsevier LtdActivity-based photosensitizers (aPSs) are highly attractive as they offer improved selectivity and better therapeutic outcome in the scope of photodynamic therapy (PDT). Here, a hydrogen sulfide (H2S) responsive iodinated resorufin-based PS (RHS) was developed to treat neuroblastoma cancer cells selectively. RHS was shown to be a phototheranostic agent as it turned on its fluorescence signal and singlet oxygen (1O2) generation capability after reacting with H2S. RHS exhibited remarkable ...
Citation Formats
A. E. Eroğlu, “Selective preconcentration and determination of sb(III) in natural waters using mercapto-resin,” Middle East Technical University, 1988.