Solid phase extraction of ultra trace copper(II) using octadecyl silica ...

Mar 9, 2000 ... A simple and reliable method for the rapid extraction and determination of ultra trace amounts of copper(II) ions using octadecyl-bonded silica membrane disks modified by a recently synthesized Schiff's base (2,2′-[1,2-ethanediyl bis(nitriloethylidyne)] bis(1-naphthalene)) and atomic absorption...

Solid phase extraction and determination of ultra trace amounts of ...

A simple and selective method for rapid extraction and determination of trace amounts of copper(II) ions using octadecyl-bonded silica membrane disks modified with 11-hydroxynaphthacene-5,12-quinone and flame atomic absorption spectrometry is presented. Extraction efficiency and the influence of pH, flow rates,...

Solid Phase Extraction and Determination of Ultra Trace Amounts of ...

Mar 16, 2007 ... Solid Phase Extraction and Determination of Ultra Trace Amounts of Copper using Activated Carbon Modified by N,N′‐Bis(Salicylidene)‐1,2‐Phenylenediamine...

Solid Phase Extraction and Determination of Ultra Trace Amounts of ...

Solid Phase Extraction and Determination of Ultra Trace Amounts of Copper using. Activated Carbon Modified by N,N0-. Bis(Salicylidene)-1,2-Phenylenediamine. M. B. Gholivand, F. Ahmadi, and E. Rafiee. Department of Chemistry, Faculty of Science, Razi University,. Kermanshah, Iran. Abstract: N,N0-bis(salicylidene)-1...

Solid Phase Extraction of Trace Copper in Aqueous Samples Using ...

ISSN:2251-6719. 9. Solid Phase Extraction of Trace Copper in Aqueous Samples Using C18 Membrane. Disks Modified by Benzildithiosemicarbazone Prior to Flame Atomic Absorption. Spectrometric (FAAS) Determination. M. Mohammadhosseini. *. Department of Chemistry, Faculty of Basic Sciences, Shahrood Branch,...

Quantification of ultra-trace amounts of copper by using off-line solid ...

Quantification of ultra-trace amounts of copper by using off-line solid phase extraction-flame atomic absorption spectrometric determination through the octadecyl silica-bonded phase membrane (OSPM) C18 disks impregnated with 2,2'-[ethane-1,2-diylbis(thio)]dianiline. Authors; Authors and affiliations.

Quantification of ultra-trace amounts of copper by using off-line solid ...

Mar 23, 2014 ... Quantification of ultra-trace amounts of copper by using off-line solid phase extraction-flame atomic absorption spectrometric determination through the octadecyl silica-bonded phase membrane (OSPM) C18 disks impregnated with 2,2'-[ethane-1,2-diylbis(thio)]dianiline. Majid Mohammadhosseini...

Solid-Phase Extraction of Ultratrace Uranium(VI) in Natural Waters ...

Oct 1, 1999 ... Spectrophotometric Complexation Studies of Some Transition and Heavy Metals with a New Pyridine Derivative Ligand and Application of It for Solid Phase Extraction of Ultratrace Copper and Determination by Flame Atomic Absorption Spectrometry. Mahmood Payehghadr , Kobra Shahbala , Homa...

Solid-Phase Extraction and Preconcentration of Copper in ... - jstor

Preconcentration of Copper in Mineral. Waters with 4-(2-Pyridyl-Azo). Resorcinol-Loaded Amberlite XAD-7 and. Flame Atomic Absorption Spectrometry. Muharrem Ince1, Olcay Kaplan2, Mehmet Yaman3*. ABSTRACT: A simple, sensitive, accurate, and selective method for determination of ultratrace levels of copper is...

Solid phase extraction for selective separation ... - Semantic Scholar

A simple and relatively fast method for the selective separation and preconcentration of trace amounts of copper in real samples ... The method permitted separation of copper ions from coexisting metal ions with an enrichment factor of 200. ... Keywords: Solid phase extraction, Copper, N-benzoyl N-phenyl hydroxyl amine.

Solid phase extraction of Cd(II) using ... - Academic Journals

A simple and reproducible method for the rapid extraction and determination of trace amounts of Cd(II) ions using mesoporous organo-silicas mesoporous silica and atomic absorption spectrometry is presented. Common coexisting ions did not interfere with the separation and determination. The preconcentration factor was...

PDF (532 K) - International Journal of Nanoscience and ...

sorbent for solid-phase extraction of trace lead and cadmium in different food samples such as rice, ... In the present work, the solid phase extraction by using amino-vinyl functionalized Fe3O4 MNPs as a sorbent was investigated for extraction, preconcentration and determination of .... particles are composed of ultra ne.

offline and online solid phase extraction ... - ResearchGate

preconcentrationlremoval or separation of trace and ultra trace amounts of toxic ..... reversed phase extraction chromatography, electrophoresis, and solid phase extraction. Also, preconcentration IS inherent in some techniques, i.e. in sample ... and cadmium with phenolphthalein as collector but the yields of copper is low.

Ionic liquid-based dispersive liquid-liquid microextraction combined ...

Oct 23, 2017 ... Ionic liquid-based dispersive liquid-liquid microextraction combined with functionalized magnetic nanoparticle solid-phase extraction for determination of industrial ... There are several reports using ionic liquid based DLLME for trace enrichment of organic chemicals in foods, biological, and water samples.

Quantification of ultra-trace amounts of copper by using off-line solid ...

Title: Quantification of ultra-trace amounts of copper by using off-line solid phase extraction-flame atomic absorption spectrometric determination through the octadecyl silica-bonded phase membrane (OSPM) C disks impregnated with 2,2'-[ethane-1,2-diylbis(thio)]dianiline; Language: English; Authors: Mohammadhosseini...

Determination of Ultra Trace Copper in Water Samples by ...

Title: Determination of Ultra Trace Copper in Water Samples by Differential Pulse Polarography after Solid Phase Extraction. Language: English; Authors: ... The breakthrough volume was greater than 500 mL with an enrichment factor of more than 100 and 3.88µg L-1 detection limit. The capacity of the modified disks is...

Solid-phase extraction of ultra-trace levels of lead using tannic acid ...

Herein, highly efficient and rapid solid-phase extraction technique was used for preconcentration of ultra-trace levels of lead (Pb2+) followed by electrothermal atomic absorption spectrometry (ETAAS). Tannic acid-coated graphene oxide (TA-GO) was used as a powerful adsorbent in solid-phase extraction for th.

Solid Phase Extraction of Trace Elements in Waterand Tissue ...

Feb 4, 2015 ... This study presents a simple, robust and environmentally friendly solid phase preconcentration procedure for multielement determination by inductively coupled plasma optical emission spectrometry (ICP-OES) using diphenylcarbazone (DPC) impregnated TiO2 nanopowder (n-TiO2). DPC was successfully...

Spectrophotometric Complexation Studies of Some Transition and ...

M. Payehghadr, K. Shahbala and H. Shafikhani, "Spectrophotometric Complexation Studies of Some Transition and Heavy Metals with a New Pyridine Derivative Ligand and Application of It for Solid Phase Extraction of Ultratrace Copper and Determination by Flame Atomic Absorption Spectrometry," American Journal of...

Ultra-trace monitoring of copper in environmental and biological ...

Ultra-trace amounts of Cu(II) were separated and preconcentrated by solid phase extraction on octadecyl-bonded silica membrane disks modified with a new Schiff,s base (Bis- (2-Hydroxyacetophenone) -2,2-dimethyl-1,3-propanediimine) (SBTD) followed by elution and inductively coupled plasma atomic emission...

Solid-Phase Extraction with Diethyldithiocarbamate as ... - Hindawi

Trace Determination of Copper, Iron and. Lead in Fruit Wine and ... Solid-phase extraction (SPE) has been widely used for the preconcentration/ separation of trace metals and clean up or removal of matrix interference in aqueous samples38-43. As chelating agent ... Since ultratrace analysis of As in these samples can be...

Determination of Trace Elements in High-Purity Molybdenum by ...

We attempted a simple pretreating method consisting of solid-phase extraction using bonded silica gel with benzenesulfonic acid (SCX) as the solid-phase sorbent to determine trace elements in pure molybdenum samples by means of inductively coupled plasma mass spectrometry (ICP-MS). Molybdenum was anionized...

M.H. Mashhadizadeh - Google Scholar Citations

Solid phase extraction of copper (II) by sorption on octadecyl silica membrane disk modified with a new Schiff base and determination with atomic absorption spectro. ... characterization and application of novel lead imprinted polymer nanoparticles as a high selective electrochemical sensor for ultra-trace determination of l.

Research on Measuring Ultra-Trace Tombarthite Elements in Water ...

Research on Measuring Ultra-Trace Tombarthite Elements in Water by Separation and Enrichment of Solid-Phase Extraction-Inductively Coupled Plasma-Mass ... Separate and enrich water samples by using solid-phase extraction, and then conduct quantitative analysis by using the ICP-MS method for 14 species of...

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