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Browsing by Author "Prasada Rao, T"

Now showing items 1-20 of 49

Amberlite XAD-4 functionalized with succinic acid for the solid phase extractive preconcentration and separation of uranium(VI)

Metilda, P; Sanghamitra, K; Mary Gladis, J; Naidu, G R K; Prasada Rao, T (Elsevier Science, 2005)

Amberlite XAD-4 resin has been functionalized with succinic acid by coupling it with dibromosuccinic acid after acetylation. The resulting resin has been characterized by FT-IR, elemental analysis and TGA and has been used ...
Bio-based ionic liquid crystalline quaternary ammonium salts: Properties and applications

Renjith, S; Prasada Rao, T; Sudha, J D (American Chemical Society, 2014)

In the present work, we describe the preparation, properties, and applications of novel ionic liquid crystalline quaternary ammonium salts (QSs) of 3-pentadecylphenol, a bio-based low-cost material derived from cashew nut ...
Copper quantum cluster-polypyrrole composite film based zero current chronopotentiometric sensor for glutathione

Saumya Varghese; Prasada Rao, T (Royal Society of Chemistry, 2012-07)

We report, for the first time, a potentiostatically deposited copper quantum cluster (CuQC) and CuQCpolypyrrole composite film modified copper disc electrode prepared under the seemingly unlikely conditions of deposition ...
Design and development of imprinted polymer inclusion membrane-based field monitoring device for trace determination of phorate (O,O-diethyl S-ethyl thiomethyl phophorodithioate) in natural waters

Prasad, K; Prathish, K P; Mary Gladis, J; Naidu, G R; Prasada Rao, T (Wiley, 2007)

A biomimetic potentiometric field monitoring device was developed for the trace determination of phorate (O,O-diethyl S-ethyl thiomethyl phophorodithioate) in natural waters. The sensing element was fabricated by the ...
Design of two-dimensional biomimetic uranyl optrode and its application to the analysis of natural waters

James, D; Mary Gladis, J; Pandey, A K; Naidu, G R K; Prasada Rao, T (Elsevier, 2008)

A two-dimensional biomimetic optrode for the detection and quantification of uranium in natural waters was fabricated. The sensing element was designed by the inclusion of uranyl ion imprinted polymer particles into ...
Determination of selenium(IV) after co-precipitation with Fe-Ti layered double hydroxides

Prasad, K; Rao, K S; Mary Gladis, J; Naidu, G R K; Prasada Rao, T (Polskie Towarzystwo Chemiczne-Polish Chemical Society, 2006)

The narrow margin between beneficial and toxic properties of selenium requires precise analytical methods for its fast and reliable determination. We have developed a precise co-precipitative preconcentration and separation ...
Dual Optoelectronic Visual Detection and Quantification of Spectroscopically Silent Heavy Metal Toxins: A Multi-measurand Sensing Strategy Based on Rhodamine 6G as Chromo or Fluoro Ionophore

Prathish, K P; James, D; Jaisy, J; Prasada Rao, T (Elsevier, 2009-07-04)

A novel colorimetric chemo-sensor for the simultaneous visual detection and quantification of spectroscopically silent heavy metal toxins viz. cadmium, lead and mercury has been developed. This is based on the proposed ...
Electrochemical synthesis of a gold atomic cluster-chitosan nanocomposite film modified gold electrode for ultra-trace determination of mercury

Aneesh, P K; Sindhu, R N; Prasada Rao, T; Ajayaghosh, A (Royal Society of Chemistry, 2014)

Gold atomic cluster based nanocomposites are important in the field of energy and sensing applications due to their interesting optical, electronic, chemical and catalytic properties. In the present study a chitosan ...
Electrochemically synthesized partially reduced graphene oxide modified glassy carbon electrode for individual and simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid

Aneesh, P K; Sindhu, R N; Prasada Rao, T; Ajayaghosh, A (Royal Society of Chemistry, 2014-07)

We report here an efficient and simple approach for the preparation of a partially reduced graphene oxide modified glassy carbon electrode (RGO-GCE). The modification of the RGO-GCE consists of three steps. These include ...
Fabrication and characterization of rhodamine 6G entrapped sol–gel film test strip for virtually specific and sensitive sensing of nitrite

Dhanya, S; Jaisy Joy; Prasada Rao, T (Elsevier, 2012-10)

A test strip sensor was developed for nitrite by the entrapment of rhodamine 6G in sol–gel film. Evidence for successful fabrication of the test strip is provided by characterizations using UV–visible spectrophotometry(UV–vis), ...
Flow injection on-line solid phase extractive preconcentration of palladium(II) in dust and rock samples using exfoliated graphite packed microcolumns and determination by flame atomic absorption spectrometry

Praveen, R S; Sobhi Daniel; Prasada Rao, T; Sampath, S; Rao, K S (Elsevier, 2006)

A sensitive and efficient flow injection preconcentration and matrix-separation technique using exfoliated graphite (EG) as column material was developed prior to flame atomic absorption spectrometry (FAAS) determination ...
Hybrid gold atomic cluster-cobalt oxide scaffolds for dual tandem electrocatalytic sensing of cysteine

Sindhu, R N; Prathish, K P; Karthik, G; Prasada Rao, T (Elsevier, 2011)

Innovations in nanoelectrochemistry have opened a plethora of techniques for the preparation of nanometer sized electrochemical probes with tunable properties. Atomic clusters emerged at the cross-road of physics and ...
In situ copper oxide modified molecularly imprinted polypyrrole film based voltammetric sensor for selective recognition of tyrosine

Saumya Varghese; Prathish, K P; Prasada Rao, T (Elsevier, 2011)

Organic-inorganic hybrids are promising functional materials as they combine the special characteristics of both organic (polymer) and inorganic phases. Among different existing approaches for the preparation of such ...
Investigation of the role of chelating ligand in the synthesis of ion-imprinted polymeric resins on the selective enrichment of uranium(VI)

Metilda, P; Mary Gladis, J; Venkateswaran, G; Prasada Rao, T (Elsevier, 2007)

Uranyl ion-imprinted polymeric (IIP) resins were prepared by dissolving stoichiometric amounts of uranyl nitrate and selected chelating ligands,viz. salicylaldoxime, catechol, succinicacid,5,7-dichloroquinoline-8-ol and ...
Ion Imprinted Polymer based Ion-selective Electrode for the Trace Determination of Dysprosium(III) Ions

Prasad, K; Kala, R; Prasada Rao, T; Naidu, G R K (Elsevier, 2006-04-27)

Ion-selective electrode (ISE) was designed by dispersing the dysprosium(III) IIP particles in 2-nitrophenyloctyl ether plasticizer and then embedded in polyvinyl chloride matrix. The ISE shows a Nernstian response for ...
Ion imprinted polymer particles for separation of yttrium from selected lanthanides

Kala, R; Prasada Rao, T (Wiley, 2006)

Lanthanide(III) (Dy, Gd, Th and Y) ion imprinted polymer (IIP) materials were synthesized via single pot reaction by mixing lanthanide imprint ion with 5,7-dichloroquinoline-8-ol, 4-vinylpyridine, styrene, divinylbenzene ...
Ion Imprinted Polymer Solid Phase Extraction (IIP‐SPE) for Preconcentrative Separation of Erbium(III) From Adjacent Lanthanides and Yttrium

Kala, R; Prasada Rao, T (Taylor & Francis, 2006)

Erbium(III) ion imprinted polymer (IIP) materials were prepared by photochemical polymerization of the ternary complex, Erbium(III)-5,7-dichloroquinoline-8-ol-4-vinylpyridine, with methyl methacrylate (functional monomer) ...
Lanthanum carbonate incorporated chitosan microparticles for phosphate collection

Aneesh, P K; Prathish, K P; Kala, R; Prasada Rao, T (Elsevier, 2009)

Lanthanum carbonate incorporated chitosan microparticles (LCCM) is proposed for collection of phosphate from 0.9% saline and human plasma serum samples. Loading of similar to 4.1 mg of La(2)(CO(3))(3)center dot 3H(2)O onto ...
Mechanistic aspects of tyrosine sensing on an in situ copper oxide modified molecularly imprinted polypyrrole coated glassy carbon electrode

Saumya, V; Prathish, K P; Dhanya, S; Prasada Rao, T (Elsevier, 2011)

The electrochemical sensing of different analytes with metal oxide modified electrodes by various mechanisms viz., free radial, catalytic, ion exchange, mixed ligand, ion association, etc., captured explicit attraction in ...
Metal Ion-imprinted Polymers—Novel Materials for Selective Recognition of Inorganics

Prasada Rao, T; Kala, R; Sobhi Daniel (Elsevier, 2006-09-25)

Ion-imprinted polymers (IIPs) are recently identified nano-porous polymeric materials which on leaching the imprint ion can rebind, sense or transport (when cast as membranes) selectively the target analyte in presence of ...

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