Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin
A method for the determination of Fe(III) at trace levels is described. Thus, prior to the spectrophotometric determination, a preconcentration of the trace amounts of iron(III) using a chelate forming resin is proposed. A strong base anion-exchange resin (Dowex 2X4) loaded with Ferron (7-iodo-8-hyd...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2002-10-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.shd.org.yu/HtDocs/SHD/Vol67/No10/V67-No10-05.pdf |
| _version_ | 1828474439604371456 |
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| author | ELEONORA-ANA NEAGU ZENOVIA MOLDOVAN |
| author_facet | ELEONORA-ANA NEAGU ZENOVIA MOLDOVAN |
| author_sort | ELEONORA-ANA NEAGU |
| collection | DOAJ |
| description | A method for the determination of Fe(III) at trace levels is described. Thus, prior to the spectrophotometric determination, a preconcentration of the trace amounts of iron(III) using a chelate forming resin is proposed. A strong base anion-exchange resin (Dowex 2X4) loaded with Ferron (7-iodo-8-hydroxyquinoline-5-sulphonic acid) was used for Fe(III) preconcentration, at pH 2.2. After desorption with 5 % ascorbic acid in 0.5 M HCl, the analyte (converted from Fe(III) to Fe(II) was determined spectrophotometrically at 510 nm as Fe(II)-o-phenanthroline complex. The accuracy of the proposed method was verified by comparing the obtained results with those obtained using AAS with the standard addition method. The sensitivity of the spectrophotometric method (after preconcentration) was 0.01 mg Fe(III)/ml. The recovery for iron(III) at the 7 mg/l level was 97 %. |
| first_indexed | 2024-12-11T05:59:58Z |
| format | Article |
| id | doaj.art-f3ea55cc9658446d8c020d3905c65b46 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 |
| language | English |
| last_indexed | 2024-12-11T05:59:58Z |
| publishDate | 2002-10-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-f3ea55cc9658446d8c020d3905c65b462022-12-22T01:18:31ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51392002-10-016710669676Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resinELEONORA-ANA NEAGUZENOVIA MOLDOVANA method for the determination of Fe(III) at trace levels is described. Thus, prior to the spectrophotometric determination, a preconcentration of the trace amounts of iron(III) using a chelate forming resin is proposed. A strong base anion-exchange resin (Dowex 2X4) loaded with Ferron (7-iodo-8-hydroxyquinoline-5-sulphonic acid) was used for Fe(III) preconcentration, at pH 2.2. After desorption with 5 % ascorbic acid in 0.5 M HCl, the analyte (converted from Fe(III) to Fe(II) was determined spectrophotometrically at 510 nm as Fe(II)-o-phenanthroline complex. The accuracy of the proposed method was verified by comparing the obtained results with those obtained using AAS with the standard addition method. The sensitivity of the spectrophotometric method (after preconcentration) was 0.01 mg Fe(III)/ml. The recovery for iron(III) at the 7 mg/l level was 97 %.http://www.shd.org.yu/HtDocs/SHD/Vol67/No10/V67-No10-05.pdfiron(III)Ferronchelating resinpreconcentrationspectrophotometric determination |
| spellingShingle | ELEONORA-ANA NEAGU ZENOVIA MOLDOVAN Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin Journal of the Serbian Chemical Society iron(III) Ferron chelating resin preconcentration spectrophotometric determination |
| title | Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin |
| title_full | Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin |
| title_fullStr | Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin |
| title_full_unstemmed | Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin |
| title_short | Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin |
| title_sort | spectrophotometric determination of trace iron iii in natural water after its preconcentration with a chelating resin |
| topic | iron(III) Ferron chelating resin preconcentration spectrophotometric determination |
| url | http://www.shd.org.yu/HtDocs/SHD/Vol67/No10/V67-No10-05.pdf |
| work_keys_str_mv | AT eleonoraananeagu spectrophotometricdeterminationoftraceironiiiinnaturalwaterafteritspreconcentrationwithachelatingresin AT zenoviamoldovan spectrophotometricdeterminationoftraceironiiiinnaturalwaterafteritspreconcentrationwithachelatingresin |