Results 81 to 90 of about 132 (112)

Charge-transfer complex of 1-(2-Thiazolylazo)-2-naphthol with aromatic nitro compounds: Experimental and theoretical studies

Journal of Molecular Liquids, 2017
Abstract The charge transfer interaction between 1-(2-Thiazolylazo)-2-naphthol (TAN) and aromatic nitro compounds were studied spectroscopically in methanol. These experimental and theoretical works inspect the natural history of charge-transfer interactions that contribute an imperative role in chemistry and biological science.
Animesh Karmakar, Bula Singh
exaly   +2 more sources

A chelating resin containing 1-(2-thiazolylazo)-2-naphthol as the functional group; synthesis and sorption behavior for trace metal ions

Microchemical Journal, 2001
A new polystyrene-divinylbenzene resin containing 1-(2-thiazolylazo)-2-naphthol (TAN) functional group was synthesized and its sorption behavior for 19 metal ions including Zr(IV), Hf(IV) and U(VI) was investigated by batch and column experiments. The chelating resin showed a high sorption affinity for Zr(IV) and Hf(IV) at pH 2.
Yong-Ill Lee, Young-Sang Kim, Si-Eun Lee   +2 more
exaly   +2 more sources

Multiwavelength spectrophotometric determination of acidity constants of 1-(2-thiazolylazo)-2-naphthol in methanol–water mixtures

Chinese Chemical Letters, 2007
Abstract The acid–base properties of 1-(2-thiazolylazo)-2-naphthol (TAN) in mixtures of methanol–water at 25 °C and an ionic strength of 0.1 mol/L are studied by a multi-wavelength spectrophotometric method. The acidity constants of all related equilibria are estimated using the whole spectral fitting of the collected data to an established factor ...
Ali Niazi, Ateesa Yazdanipour
exaly   +2 more sources

Simultaneous spectrophotometric determination of cobalt, copper and nickel using 1-(2-thiazolylazo)-2-naphthol by chemometrics methods

Chinese Chemical Letters, 2008
Abstract The simultaneous determination of cobalt, copper and nickel using 1-(2-thiazolylazo)-2-naphthol (first figure of this article) by spectrophotometric method is a difficult problem in analytical chemistry, due to spectral interferences. By multivariate calibration methods, such as partial least squares (PLS) regression, it is possible to ...
Ali Niazi, Ateesa Yazdanipour
exaly   +2 more sources

Construction of Tm3+-PVC membrane sensor based on 1-(2-thiazolylazo)-2-naphthol as sensing material

Materials Science and Engineering C, 2010
Abstract In this study, a new thulium(III) membrane sensor was constructed. The proposed membrane sensor was fabricated based on a membrane containing 2% sodium tetraphenyl borate (NaTPB) as an anionic additive, 65% benzyl acetate (BA) as solvent mediator, 3% 1-(2-thiazolylazo)-2-naphthol (TN) as ionophore, and 30% poly(vinyl chloride) (PVC).
Mohammad Reza Ganjali, Hassan Ali Zamani, Majid Mohammadhosseini   +2 more
exaly   +2 more sources

Rapid X-ray fluorescence analysis of trace metals collected by using naphthalene powder doped with 1-(2-thiazolylazo)-2-naphthol

Talanta, 1979
Naphthalene powder doped with 1-(2-thiazolylazo)-2-naphthol is used as collector for traces of metals, which are then determined by X-ray fluorescence analysis of the naphthalene. The method is used for traces of nickel.
Masatada Satake, Taitiro Fujinaga
exaly   +3 more sources

Removal of Hg(II) from aqueous solutions using a novel impregnated resin containing 1-(2-thiazolylazo)-2-naphthol (TAN)

Chemical Engineering Journal, 2011
Abstract A novel efficient Hg(II) adsorbent was prepared by impregnating 1-(2-thiazolylazo)-2-naphtol (TAN) onto Amberlite XAD-4 resin beads. Batch sorption experiments were carried out for the removal of Hg(II) from aqueous solutions using the new extractant-impregnated resin, EIR.
Ahmad Hosseini-Bandegharaei, Masoud Sarwghadi, Mehdi Nedaie   +2 more
exaly   +2 more sources

Removal and recovery of mercury(II) from hazardous wastes using 1-(2-thiazolylazo)-2-naphthol functionalized activated carbon as solid phase extractant

Journal of Hazardous Materials, 2004
As a part of removal of toxic heavy metals from hazardous wastes, solid phase extraction (SPE) of mercury(II) at trace and ultra trace levels was studied using 1-(2-thiazolylazo)-2-naphthol (TAN) functionalized activated carbon (AC). The SPE material removes traces of mercury(II) quantitatively in the pH range 6.0 +/- 0.2.
T Prasada Rao
exaly   +3 more sources

Magnetic Fe3O4@C nanoparticles modified with 1-(2-thiazolylazo)-2-naphthol as a novel solid-phase extraction sorbent for preconcentration of copper (II)

Mikrochimica Acta, 2014
We report on a new magnetic nanosorbent for solid phase extraction of Cu(II) before its determination by flame atomic absorption spectrometry. The magnetic sorbent is composed of carbon-coated magnetite nanoparticles (Fe3O4@C) synthesized by a single-step solvothermal reaction and then loaded with the chelator 1-(2-thiazolylazo)-2-naphthol. It was used
Mohammad Amjadi, Amjadi Mohammad
exaly   +2 more sources

Rapid spectrophotometric determination of cerium(III) with 4-(2-thiazolylazo)resorcinol and 1-(2-thiazolylazo)-2-naphthol

Analyst, The, 1986
M C Eshwar
exaly   +3 more sources