Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines
In-capillary derivatization and field-amplified sample injection (FASI) coupled to capillary zone electrophoresis (CZE) was evaluated for the analysis of metals (Co(II), Cu(II), Ni(II), and Fe(II)) using 2-(5-Nitro-2-Pyridylazo)-5-(N-Propyl-N-Sulfopropylamino)Phenol (Nitro-PAPS) as the derivatizing...
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th-cmuir.6653943832-609602018-09-10T04:01:58Z Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines Apichai Santalad Rodjana Burakham Supalax Srijaranai Kate Grudpan Chemistry In-capillary derivatization and field-amplified sample injection (FASI) coupled to capillary zone electrophoresis (CZE) was evaluated for the analysis of metals (Co(II), Cu(II), Ni(II), and Fe(II)) using 2-(5-Nitro-2-Pyridylazo)-5-(N-Propyl-N-Sulfopropylamino)Phenol (Nitro-PAPS) as the derivatizing agent. For FASI, the optimum conditions were water as sample solvent, 1 s hydrodynamic injection (0.1 psi) of a water plug, 5 s of electrokinetic introduction (10 kV) of the sample. The in-capillary derivatization was successfully achieved with zone-passing strategy in order tandem injection of Nitro-PAPS reagent (0.5 psi, 7 s), a small water plug (0.1 psi, 1 s), and metal ion introduction (10 kV, 5 s). The solution of 45 mmol L- 1borate pH 9.7 and 1.0 × 10- 5 mol L- 1Nitro-PAPS containing 20% acetonitrile was used as the running buffer. The limit of detection obtained by the proposed method was lower than those from pre-capillary derivatization about 3-28 times. The recovery of the method was comparable to pre-capillary derivatization method. In-capillary derivatization-FASI-CZE was applied to analysis of metals in wine samples. The results were compared with those obtained by CZE with pre-capillary derivatization method and atomic absorption spectrometry (AAS). © 2007 Elsevier B.V. All rights reserved. 2018-09-10T04:01:58Z 2018-09-10T04:01:58Z 2007-08-01 Journal 0026265X 2-s2.0-34249321217 10.1016/j.microc.2007.03.006 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34249321217&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/60960 |
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Chemistry Apichai Santalad Rodjana Burakham Supalax Srijaranai Kate Grudpan Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
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In-capillary derivatization and field-amplified sample injection (FASI) coupled to capillary zone electrophoresis (CZE) was evaluated for the analysis of metals (Co(II), Cu(II), Ni(II), and Fe(II)) using 2-(5-Nitro-2-Pyridylazo)-5-(N-Propyl-N-Sulfopropylamino)Phenol (Nitro-PAPS) as the derivatizing agent. For FASI, the optimum conditions were water as sample solvent, 1 s hydrodynamic injection (0.1 psi) of a water plug, 5 s of electrokinetic introduction (10 kV) of the sample. The in-capillary derivatization was successfully achieved with zone-passing strategy in order tandem injection of Nitro-PAPS reagent (0.5 psi, 7 s), a small water plug (0.1 psi, 1 s), and metal ion introduction (10 kV, 5 s). The solution of 45 mmol L- 1borate pH 9.7 and 1.0 × 10- 5 mol L- 1Nitro-PAPS containing 20% acetonitrile was used as the running buffer. The limit of detection obtained by the proposed method was lower than those from pre-capillary derivatization about 3-28 times. The recovery of the method was comparable to pre-capillary derivatization method. In-capillary derivatization-FASI-CZE was applied to analysis of metals in wine samples. The results were compared with those obtained by CZE with pre-capillary derivatization method and atomic absorption spectrometry (AAS). © 2007 Elsevier B.V. All rights reserved. |
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Apichai Santalad Rodjana Burakham Supalax Srijaranai Kate Grudpan |
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Apichai Santalad Rodjana Burakham Supalax Srijaranai Kate Grudpan |
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Apichai Santalad |
title |
Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
title_short |
Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
title_full |
Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
title_fullStr |
Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
title_full_unstemmed |
Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
title_sort |
field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34249321217&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/60960 |
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