Removal and Preconcentration of Cobalt Ions from Aqueous Media Using ImHA Packed Column by On-Line SPE System

This work assesses the use of immobilized humic acid (ImHA) onto aminopropyl silica (APS) as a sorbent for the removal and preconcentration of trace amounts of cobalt ions by on-line solid phase extraction (SPE) technique in the column system prepared in our laboratory. Different parameters, such as...

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Veröffentlicht in:Water, air, and soil pollution air, and soil pollution, 2012-09, Vol.223 (7), p.3817-3830
Hauptverfasser: Ayyildiz, H. Filiz, Topkafa, Mustafa, Arslan, FatmaNur, Durmaz, Fatih, Kucukkolbasi, Semahat, Tarhan, Ismail, Kara, Huseyin
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container_end_page 3830
container_issue 7
container_start_page 3817
container_title Water, air, and soil pollution
container_volume 223
creator Ayyildiz, H. Filiz
Topkafa, Mustafa
Arslan, FatmaNur
Durmaz, Fatih
Kucukkolbasi, Semahat
Tarhan, Ismail
Kara, Huseyin
description This work assesses the use of immobilized humic acid (ImHA) onto aminopropyl silica (APS) as a sorbent for the removal and preconcentration of trace amounts of cobalt ions by on-line solid phase extraction (SPE) technique in the column system prepared in our laboratory. Different parameters, such as the effect of the pH, concentration, and flow rate, were studied and throughput was observed by a UV detector. All SPE steps were monitored by breakthrough curves used to visualize distribution of cobalt concentration between mobile and solid phase. The solutions collected from stripping steps were analyzed in atomic absorption spectrometer (AAS) and the amount of sorbed ions was calculated. Sorption characteristics were evaluated by using common adsorption isotherms and Scatchard plot analysis. From the obtained results, it was seen that sorption mechanism of cobalt ions were fitted to Langmuir model on a large scale and thought to be localized. Mean free energy ( E  = 40.82 kJ mol −1 ) calculated from D-R isotherm showed that chemical interactions are more effective than physical interactions. This investigation reveals a new, simple, environmentally friendly, and cost-effective method for removal and preconcentration of cobalt ions from aqueous solutions by a new aminopropyl silica-immobilized humic acid material.
doi_str_mv 10.1007/s11270-012-1150-4
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Filiz</au><au>Topkafa, Mustafa</au><au>Arslan, FatmaNur</au><au>Durmaz, Fatih</au><au>Kucukkolbasi, Semahat</au><au>Tarhan, Ismail</au><au>Kara, Huseyin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Removal and Preconcentration of Cobalt Ions from Aqueous Media Using ImHA Packed Column by On-Line SPE System</atitle><jtitle>Water, air, and soil pollution</jtitle><stitle>Water Air Soil Pollut</stitle><date>2012-09-01</date><risdate>2012</risdate><volume>223</volume><issue>7</issue><spage>3817</spage><epage>3830</epage><pages>3817-3830</pages><issn>0049-6979</issn><eissn>1573-2932</eissn><abstract>This work assesses the use of immobilized humic acid (ImHA) onto aminopropyl silica (APS) as a sorbent for the removal and preconcentration of trace amounts of cobalt ions by on-line solid phase extraction (SPE) technique in the column system prepared in our laboratory. Different parameters, such as the effect of the pH, concentration, and flow rate, were studied and throughput was observed by a UV detector. All SPE steps were monitored by breakthrough curves used to visualize distribution of cobalt concentration between mobile and solid phase. The solutions collected from stripping steps were analyzed in atomic absorption spectrometer (AAS) and the amount of sorbed ions was calculated. Sorption characteristics were evaluated by using common adsorption isotherms and Scatchard plot analysis. From the obtained results, it was seen that sorption mechanism of cobalt ions were fitted to Langmuir model on a large scale and thought to be localized. Mean free energy ( E  = 40.82 kJ mol −1 ) calculated from D-R isotherm showed that chemical interactions are more effective than physical interactions. This investigation reveals a new, simple, environmentally friendly, and cost-effective method for removal and preconcentration of cobalt ions from aqueous solutions by a new aminopropyl silica-immobilized humic acid material.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11270-012-1150-4</doi><tpages>14</tpages></addata></record>
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source SpringerNature Journals
subjects Acids
Adsorption
Anabolic steroids
Analysis
Aqueous solutions
Atmospheric Protection/Air Quality Control/Air Pollution
Biomass
Biomedical materials
Chemical interactions
Climate Change/Climate Change Impacts
Cobalt
Earth and Environmental Science
Environment
Environmental monitoring
Flow rates
Free energy
Heavy metals
Humic acid
Humic acids
Hydrogeology
Ions
Isotherms
Metals
Pollution
Silica
Soil Science & Conservation
Sorbents
Sorption
Spectral analysis
Studies
Water Quality/Water Pollution
title Removal and Preconcentration of Cobalt Ions from Aqueous Media Using ImHA Packed Column by On-Line SPE System
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