| Computer controlled-flow injection potentiometric system based on virtual instrumentation for the monitoring of metal-biosorption processes. | |
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MedLine Citation:
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PMID: 20457298 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A completely automated flow-injection system was developed for the monitoring of biosorption studies of Cu(II) ion on vegetable waste by-products. The system employed flow-through Cu(II)-selective electrodes, of epoxy-resin-CuS/Ag(2)S heterogeneous crystalline type, and computer controlled pumps and valves for the flow operation. Computer automation was done through a specially devised virtual instrument, which commanded and periodically calibrated the system, allowing for the monitoring of Cu(II) ions between 0.6 and 6530 mg L(-1) at a typical frequency of 15 h(-1). Grape stalk wastes were used as biosorbent to remove Cu(II) ions in a fixed-bed column with a sorption capacity of 5.46 mg g(-1), obtained by the developed flow system, while the reference determination performed by FAAS technique supplied a comparable value of 5.41 mg g(-1). |
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Authors:
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A Florido; C Valderrama; S Nualart; L Velazco-Molina; O Arias de Fuentes; M del Valle |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-01-18 |
Journal Detail:
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Title: Analytica chimica acta Volume: 668 ISSN: 1873-4324 ISO Abbreviation: Anal. Chim. Acta Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-05-11 Completed Date: 2010-08-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370534 Medline TA: Anal Chim Acta Country: Netherlands |
Other Details:
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Languages: eng Pagination: 26-34 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Av. Diagonal 647, Edifici H Planta 4a, 08028 Barcelona, Spain. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adsorption Automation Copper / analysis*, chemistry Flow Injection Analysis / methods* Ion-Selective Electrodes Potentiometry / methods* Silver Compounds / chemistry Waste Products / analysis |
| Chemical | |
Reg. No./Substance:
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0/Silver Compounds; 0/Waste Products; 21548-73-2/silver sulfide; 7440-50-8/Copper |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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