Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy
BACKGROUND Heavy metal contamination in water and agricultural products is a major concern that causes risks for human health. This article describes a highly selective approach to preconcentrate cobalt(II) (Co(II)) ions based on the standard UV–visible measurement of Co(II)–1‐(2‐pyridylazo)‐2‐napht...
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| Veröffentlicht in: | Journal of the science of food and agriculture 2020-03, Vol.100 (5), p.2272-2279 |
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| creator | Eskandarpour, Maryam Jamshidi, Parastoo Moghaddam, Mohammad Reza Ghasmei, Jahan B Shemirani, Farzaneh |
| description | BACKGROUND
Heavy metal contamination in water and agricultural products is a major concern that causes risks for human health. This article describes a highly selective approach to preconcentrate cobalt(II) (Co(II)) ions based on the standard UV–visible measurement of Co(II)–1‐(2‐pyridylazo)‐2‐naphthol complex at λ = 628 nm in water and nut samples. In this method, magnetic silica (mSiO2) was utilized as a practical sorbent and 1‐(2‐pyridylazo)‐2‐naphthol was employed as a complexing agent in the elution step. The adsorbent was characterized via X‐ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. The effects of the main variables (pH, adsorption time, sorbent amount, pH of eluent, ligand volume, and desorption time) were investigated and established.
RESULTS
The maximum recovery was achieved at pH 7 ± 0.3, adsorption time of 60 min, sorbent amount of 40 mg, eluent pH 8 ± 0.2, ligand volume of 2 mL (16.95 × 10−4 mol L−1) and desorption time of 30 min. The linearity of dynamic range (10–500 μg L−1), limit of detection (0.32 μg L−1), relative standard deviation (3.04%), and preconcentration factor (25) show the reliability of the method. The sorbent was reusable 12 times. Selectivity and the effect of interference ions were successfully examined. The adsorption process of Co(II) ions on mSiO2 was investigated based on Langmuir and Freundlich isotherms. The Freundlich model was fitted with the system and the maximum capacity adsorption of mSiO2 for Co(II) adsorption is 2.35 mg g−1. Then, the kinetics study revealed that the adsorption process of Co(II) ions on the mSiO2 follows the pseudo‐first‐order model. The thermodynamics parameters ΔG, ΔS, and ΔH were calculated.
CONCLUSION
The method was fruitfully applied to preconcentrate Co(II) ions in water and nut samples. This method offers high selectivity and precision for determining Co(II) ions. © 2020 Society of Chemical Industry |
| doi_str_mv | 10.1002/jsfa.10257 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2377255673</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2377255673</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3247-4ab44002cc0a52c54f5a2c52d0af7b7373558a661a5ab4a4d6145de1fa4ab6523</originalsourceid><addsrcrecordid>eNp9kc9u1DAQxi0EokvhwgMgS1wKUsB27Jg9VoXyR5U4QLlGE2fS9cqxg51sFU59BCTehQfqk-DdFI5cPPbMb74Z-SPkKWevOGPi9TZ1kG9C6XtkxdlaF4xxdp-sclEUiktxRB6ltGWMrddV9ZAclXxdMsXkivx-izt0YbD-igLd2KuNm2lCh2a0O6Q9jpvQ0i5EOkQ0wRv0Y4TRBk_Bt7TFEWNv_ZIJHTWhATdS6-k15NIB8tNIE_SDw0SntJ_Eb29-noh8DHO07ezgR3iRX_uMh2GTZ7pD5-W325tfO5ts45CmIS8VQzJhmB-TBx24hE_u4jG5PH_39exDcfH5_cez04vClELqQkIjZf4FYxgoYZTsFOQgWgadbnSpS6XeQFVxUJkE2VZcqhZ5B7mzUqI8Js8X3SGG7xOmsd6GKfo8shal1kKpSpeZerlQJq-XInb1EG0Pca45q_cW1XuL6oNFGX52Jzk1Pbb_0L-eZIAvwLV1OP9Hqv705fx0Ef0DI_GkJA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2377255673</pqid></control><display><type>article</type><title>Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy</title><source>Wiley Journals</source><creator>Eskandarpour, Maryam ; Jamshidi, Parastoo ; Moghaddam, Mohammad Reza ; Ghasmei, Jahan B ; Shemirani, Farzaneh</creator><creatorcontrib>Eskandarpour, Maryam ; Jamshidi, Parastoo ; Moghaddam, Mohammad Reza ; Ghasmei, Jahan B ; Shemirani, Farzaneh</creatorcontrib><description>BACKGROUND
Heavy metal contamination in water and agricultural products is a major concern that causes risks for human health. This article describes a highly selective approach to preconcentrate cobalt(II) (Co(II)) ions based on the standard UV–visible measurement of Co(II)–1‐(2‐pyridylazo)‐2‐naphthol complex at λ = 628 nm in water and nut samples. In this method, magnetic silica (mSiO2) was utilized as a practical sorbent and 1‐(2‐pyridylazo)‐2‐naphthol was employed as a complexing agent in the elution step. The adsorbent was characterized via X‐ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. The effects of the main variables (pH, adsorption time, sorbent amount, pH of eluent, ligand volume, and desorption time) were investigated and established.
RESULTS
The maximum recovery was achieved at pH 7 ± 0.3, adsorption time of 60 min, sorbent amount of 40 mg, eluent pH 8 ± 0.2, ligand volume of 2 mL (16.95 × 10−4 mol L−1) and desorption time of 30 min. The linearity of dynamic range (10–500 μg L−1), limit of detection (0.32 μg L−1), relative standard deviation (3.04%), and preconcentration factor (25) show the reliability of the method. The sorbent was reusable 12 times. Selectivity and the effect of interference ions were successfully examined. The adsorption process of Co(II) ions on mSiO2 was investigated based on Langmuir and Freundlich isotherms. The Freundlich model was fitted with the system and the maximum capacity adsorption of mSiO2 for Co(II) adsorption is 2.35 mg g−1. Then, the kinetics study revealed that the adsorption process of Co(II) ions on the mSiO2 follows the pseudo‐first‐order model. The thermodynamics parameters ΔG, ΔS, and ΔH were calculated.
CONCLUSION
The method was fruitfully applied to preconcentrate Co(II) ions in water and nut samples. This method offers high selectivity and precision for determining Co(II) ions. © 2020 Society of Chemical Industry</description><identifier>ISSN: 0022-5142</identifier><identifier>EISSN: 1097-0010</identifier><identifier>DOI: 10.1002/jsfa.10257</identifier><identifier>PMID: 31930504</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>1‐(2‐pyridylazo)‐2‐naphthol ; Adsorption ; Agricultural pollution ; Agricultural products ; Co(II) ; Cobalt ; Contamination ; Desorption ; Elution ; Fe3O4/SiO2 ; Fourier transforms ; Health risks ; Heavy metals ; Infrared spectroscopy ; Ions ; Ligands ; Linearity ; magnetic solid‐phase extraction ; Naphthol ; nut sample analysis ; Nuts ; Order parameters ; pH effects ; Pyridylazonaphthol ; Reliability aspects ; Scanning electron microscopy ; Selectivity ; Silica ; Silicon dioxide ; Sorbents ; Spectrum analysis ; water analysis ; Water pollution</subject><ispartof>Journal of the science of food and agriculture, 2020-03, Vol.100 (5), p.2272-2279</ispartof><rights>2020 Society of Chemical Industry</rights><rights>2020 Society of Chemical Industry.</rights><rights>Copyright © 2020 Society of Chemical Industry</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3247-4ab44002cc0a52c54f5a2c52d0af7b7373558a661a5ab4a4d6145de1fa4ab6523</citedby><cites>FETCH-LOGICAL-c3247-4ab44002cc0a52c54f5a2c52d0af7b7373558a661a5ab4a4d6145de1fa4ab6523</cites><orcidid>0000-0002-0380-8000</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjsfa.10257$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjsfa.10257$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31930504$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Eskandarpour, Maryam</creatorcontrib><creatorcontrib>Jamshidi, Parastoo</creatorcontrib><creatorcontrib>Moghaddam, Mohammad Reza</creatorcontrib><creatorcontrib>Ghasmei, Jahan B</creatorcontrib><creatorcontrib>Shemirani, Farzaneh</creatorcontrib><title>Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy</title><title>Journal of the science of food and agriculture</title><addtitle>J Sci Food Agric</addtitle><description>BACKGROUND
Heavy metal contamination in water and agricultural products is a major concern that causes risks for human health. This article describes a highly selective approach to preconcentrate cobalt(II) (Co(II)) ions based on the standard UV–visible measurement of Co(II)–1‐(2‐pyridylazo)‐2‐naphthol complex at λ = 628 nm in water and nut samples. In this method, magnetic silica (mSiO2) was utilized as a practical sorbent and 1‐(2‐pyridylazo)‐2‐naphthol was employed as a complexing agent in the elution step. The adsorbent was characterized via X‐ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. The effects of the main variables (pH, adsorption time, sorbent amount, pH of eluent, ligand volume, and desorption time) were investigated and established.
RESULTS
The maximum recovery was achieved at pH 7 ± 0.3, adsorption time of 60 min, sorbent amount of 40 mg, eluent pH 8 ± 0.2, ligand volume of 2 mL (16.95 × 10−4 mol L−1) and desorption time of 30 min. The linearity of dynamic range (10–500 μg L−1), limit of detection (0.32 μg L−1), relative standard deviation (3.04%), and preconcentration factor (25) show the reliability of the method. The sorbent was reusable 12 times. Selectivity and the effect of interference ions were successfully examined. The adsorption process of Co(II) ions on mSiO2 was investigated based on Langmuir and Freundlich isotherms. The Freundlich model was fitted with the system and the maximum capacity adsorption of mSiO2 for Co(II) adsorption is 2.35 mg g−1. Then, the kinetics study revealed that the adsorption process of Co(II) ions on the mSiO2 follows the pseudo‐first‐order model. The thermodynamics parameters ΔG, ΔS, and ΔH were calculated.
CONCLUSION
The method was fruitfully applied to preconcentrate Co(II) ions in water and nut samples. This method offers high selectivity and precision for determining Co(II) ions. © 2020 Society of Chemical Industry</description><subject>1‐(2‐pyridylazo)‐2‐naphthol</subject><subject>Adsorption</subject><subject>Agricultural pollution</subject><subject>Agricultural products</subject><subject>Co(II)</subject><subject>Cobalt</subject><subject>Contamination</subject><subject>Desorption</subject><subject>Elution</subject><subject>Fe3O4/SiO2</subject><subject>Fourier transforms</subject><subject>Health risks</subject><subject>Heavy metals</subject><subject>Infrared spectroscopy</subject><subject>Ions</subject><subject>Ligands</subject><subject>Linearity</subject><subject>magnetic solid‐phase extraction</subject><subject>Naphthol</subject><subject>nut sample analysis</subject><subject>Nuts</subject><subject>Order parameters</subject><subject>pH effects</subject><subject>Pyridylazonaphthol</subject><subject>Reliability aspects</subject><subject>Scanning electron microscopy</subject><subject>Selectivity</subject><subject>Silica</subject><subject>Silicon dioxide</subject><subject>Sorbents</subject><subject>Spectrum analysis</subject><subject>water analysis</subject><subject>Water pollution</subject><issn>0022-5142</issn><issn>1097-0010</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kc9u1DAQxi0EokvhwgMgS1wKUsB27Jg9VoXyR5U4QLlGE2fS9cqxg51sFU59BCTehQfqk-DdFI5cPPbMb74Z-SPkKWevOGPi9TZ1kG9C6XtkxdlaF4xxdp-sclEUiktxRB6ltGWMrddV9ZAclXxdMsXkivx-izt0YbD-igLd2KuNm2lCh2a0O6Q9jpvQ0i5EOkQ0wRv0Y4TRBk_Bt7TFEWNv_ZIJHTWhATdS6-k15NIB8tNIE_SDw0SntJ_Eb29-noh8DHO07ezgR3iRX_uMh2GTZ7pD5-W325tfO5ts45CmIS8VQzJhmB-TBx24hE_u4jG5PH_39exDcfH5_cez04vClELqQkIjZf4FYxgoYZTsFOQgWgadbnSpS6XeQFVxUJkE2VZcqhZ5B7mzUqI8Js8X3SGG7xOmsd6GKfo8shal1kKpSpeZerlQJq-XInb1EG0Pca45q_cW1XuL6oNFGX52Jzk1Pbb_0L-eZIAvwLV1OP9Hqv705fx0Ef0DI_GkJA</recordid><startdate>20200330</startdate><enddate>20200330</enddate><creator>Eskandarpour, Maryam</creator><creator>Jamshidi, Parastoo</creator><creator>Moghaddam, Mohammad Reza</creator><creator>Ghasmei, Jahan B</creator><creator>Shemirani, Farzaneh</creator><general>John Wiley & Sons, Ltd</general><general>John Wiley and Sons, Limited</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QL</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7T5</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-0380-8000</orcidid></search><sort><creationdate>20200330</creationdate><title>Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy</title><author>Eskandarpour, Maryam ; Jamshidi, Parastoo ; Moghaddam, Mohammad Reza ; Ghasmei, Jahan B ; Shemirani, Farzaneh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3247-4ab44002cc0a52c54f5a2c52d0af7b7373558a661a5ab4a4d6145de1fa4ab6523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>1‐(2‐pyridylazo)‐2‐naphthol</topic><topic>Adsorption</topic><topic>Agricultural pollution</topic><topic>Agricultural products</topic><topic>Co(II)</topic><topic>Cobalt</topic><topic>Contamination</topic><topic>Desorption</topic><topic>Elution</topic><topic>Fe3O4/SiO2</topic><topic>Fourier transforms</topic><topic>Health risks</topic><topic>Heavy metals</topic><topic>Infrared spectroscopy</topic><topic>Ions</topic><topic>Ligands</topic><topic>Linearity</topic><topic>magnetic solid‐phase extraction</topic><topic>Naphthol</topic><topic>nut sample analysis</topic><topic>Nuts</topic><topic>Order parameters</topic><topic>pH effects</topic><topic>Pyridylazonaphthol</topic><topic>Reliability aspects</topic><topic>Scanning electron microscopy</topic><topic>Selectivity</topic><topic>Silica</topic><topic>Silicon dioxide</topic><topic>Sorbents</topic><topic>Spectrum analysis</topic><topic>water analysis</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Eskandarpour, Maryam</creatorcontrib><creatorcontrib>Jamshidi, Parastoo</creatorcontrib><creatorcontrib>Moghaddam, Mohammad Reza</creatorcontrib><creatorcontrib>Ghasmei, Jahan B</creatorcontrib><creatorcontrib>Shemirani, Farzaneh</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ceramic Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Ecology Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Immunology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Journal of the science of food and agriculture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Eskandarpour, Maryam</au><au>Jamshidi, Parastoo</au><au>Moghaddam, Mohammad Reza</au><au>Ghasmei, Jahan B</au><au>Shemirani, Farzaneh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy</atitle><jtitle>Journal of the science of food and agriculture</jtitle><addtitle>J Sci Food Agric</addtitle><date>2020-03-30</date><risdate>2020</risdate><volume>100</volume><issue>5</issue><spage>2272</spage><epage>2279</epage><pages>2272-2279</pages><issn>0022-5142</issn><eissn>1097-0010</eissn><abstract>BACKGROUND
Heavy metal contamination in water and agricultural products is a major concern that causes risks for human health. This article describes a highly selective approach to preconcentrate cobalt(II) (Co(II)) ions based on the standard UV–visible measurement of Co(II)–1‐(2‐pyridylazo)‐2‐naphthol complex at λ = 628 nm in water and nut samples. In this method, magnetic silica (mSiO2) was utilized as a practical sorbent and 1‐(2‐pyridylazo)‐2‐naphthol was employed as a complexing agent in the elution step. The adsorbent was characterized via X‐ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. The effects of the main variables (pH, adsorption time, sorbent amount, pH of eluent, ligand volume, and desorption time) were investigated and established.
RESULTS
The maximum recovery was achieved at pH 7 ± 0.3, adsorption time of 60 min, sorbent amount of 40 mg, eluent pH 8 ± 0.2, ligand volume of 2 mL (16.95 × 10−4 mol L−1) and desorption time of 30 min. The linearity of dynamic range (10–500 μg L−1), limit of detection (0.32 μg L−1), relative standard deviation (3.04%), and preconcentration factor (25) show the reliability of the method. The sorbent was reusable 12 times. Selectivity and the effect of interference ions were successfully examined. The adsorption process of Co(II) ions on mSiO2 was investigated based on Langmuir and Freundlich isotherms. The Freundlich model was fitted with the system and the maximum capacity adsorption of mSiO2 for Co(II) adsorption is 2.35 mg g−1. Then, the kinetics study revealed that the adsorption process of Co(II) ions on the mSiO2 follows the pseudo‐first‐order model. The thermodynamics parameters ΔG, ΔS, and ΔH were calculated.
CONCLUSION
The method was fruitfully applied to preconcentrate Co(II) ions in water and nut samples. This method offers high selectivity and precision for determining Co(II) ions. © 2020 Society of Chemical Industry</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><pmid>31930504</pmid><doi>10.1002/jsfa.10257</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-0380-8000</orcidid></addata></record> |
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| subjects | 1‐(2‐pyridylazo)‐2‐naphthol Adsorption Agricultural pollution Agricultural products Co(II) Cobalt Contamination Desorption Elution Fe3O4/SiO2 Fourier transforms Health risks Heavy metals Infrared spectroscopy Ions Ligands Linearity magnetic solid‐phase extraction Naphthol nut sample analysis Nuts Order parameters pH effects Pyridylazonaphthol Reliability aspects Scanning electron microscopy Selectivity Silica Silicon dioxide Sorbents Spectrum analysis water analysis Water pollution |
| title | Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy |
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