Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates
Phosphate is a well-known contaminant and its content is an indicator of water quality, so it is important to have an efficient monitoring of the soil leaching process.In this work, an automatic, low cost flow analysis method, capable of real-time monitoring of the soil leaching processes using spec...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Talanta Open |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666831920300151 |
| _version_ | 1819163698608996352 |
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| author | Francisca T.S.M. Ferreira Letícia S. Mesquita Raquel B.R. Mesquita António O.S.S. Rangel |
| author_facet | Francisca T.S.M. Ferreira Letícia S. Mesquita Raquel B.R. Mesquita António O.S.S. Rangel |
| author_sort | Francisca T.S.M. Ferreira |
| collection | DOAJ |
| description | Phosphate is a well-known contaminant and its content is an indicator of water quality, so it is important to have an efficient monitoring of the soil leaching process.In this work, an automatic, low cost flow analysis method, capable of real-time monitoring of the soil leaching processes using spectrophotometric detection, based on the molybdenum blue reaction, was developed. The developed methodology for phosphate determination was based on the molybdenum blue reaction and includes an on-line solid phase extraction (SPE) step, involving an AG1-X8 anionic exchange sorbent.The described SI method enabled phosphate determination within a wide range, 1–80 µM, with a detection limit of 0.52 µM. It was successfully applied to leachates from laboratory scale soil columns (LSSC) and one sample analysis was carried out in triplicate, in less than 10 minutes. |
| first_indexed | 2024-12-22T17:48:16Z |
| format | Article |
| id | doaj.art-7dc332f2afad426bbd5eb6a20e68b955 |
| institution | Directory Open Access Journal |
| issn | 2666-8319 |
| language | English |
| last_indexed | 2024-12-22T17:48:16Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Talanta Open |
| spelling | doaj.art-7dc332f2afad426bbd5eb6a20e68b9552022-12-21T18:18:14ZengElsevierTalanta Open2666-83192020-12-012100015Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachatesFrancisca T.S.M. Ferreira0Letícia S. Mesquita1Raquel B.R. Mesquita2António O.S.S. Rangel3Universidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalUniversidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCorresponding author.; Universidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalUniversidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalPhosphate is a well-known contaminant and its content is an indicator of water quality, so it is important to have an efficient monitoring of the soil leaching process.In this work, an automatic, low cost flow analysis method, capable of real-time monitoring of the soil leaching processes using spectrophotometric detection, based on the molybdenum blue reaction, was developed. The developed methodology for phosphate determination was based on the molybdenum blue reaction and includes an on-line solid phase extraction (SPE) step, involving an AG1-X8 anionic exchange sorbent.The described SI method enabled phosphate determination within a wide range, 1–80 µM, with a detection limit of 0.52 µM. It was successfully applied to leachates from laboratory scale soil columns (LSSC) and one sample analysis was carried out in triplicate, in less than 10 minutes.http://www.sciencedirect.com/science/article/pii/S2666831920300151PhosphateFlow analysisAG1-X8 anionic exchange resinMolybdenum blue reactionGroundwater contamination |
| spellingShingle | Francisca T.S.M. Ferreira Letícia S. Mesquita Raquel B.R. Mesquita António O.S.S. Rangel Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates Talanta Open Phosphate Flow analysis AG1-X8 anionic exchange resin Molybdenum blue reaction Groundwater contamination |
| title | Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates |
| title_full | Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates |
| title_fullStr | Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates |
| title_full_unstemmed | Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates |
| title_short | Improved sequential injection method for phosphate quantification within a wide dynamic range with in-line pre-concentration to monitor soil leachates |
| title_sort | improved sequential injection method for phosphate quantification within a wide dynamic range with in line pre concentration to monitor soil leachates |
| topic | Phosphate Flow analysis AG1-X8 anionic exchange resin Molybdenum blue reaction Groundwater contamination |
| url | http://www.sciencedirect.com/science/article/pii/S2666831920300151 |
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