Automated Spectrophotometric Multi-Pumping Flow System for the Determination of Total Iron in Wine

Cristina Andreu; Kaewta Danchana; Víctor Cerdà

doi:10.1080/00032719.2020.1758710

Automated Spectrophotometric Multi-Pumping Flow System for the Determination of Total Iron in Wine

Cristina Andreu, Kaewta Danchana, Víctor Cerdà

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A new automated system based on a multi-pumping flow system (MPFS) for the spectrophotometric determination of total iron in various wine samples is presented. This analytical protocol is based on the complex formation between Fe (II) and 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP). The addition of ascorbic acid allows the determination of total iron by reducing the Fe (III) present in the samples to Fe (II). Several physical and chemical parameters, including the mixing coil length, the sample volume, the chromogenic reagent concentration, the pH, and the ascorbic acid concentration have been characterized in order to optimize the analytical conditions. The limits of detection and quantification were 34 µg L⁻¹ and 114 µg L⁻¹ respectively. The developed procedure requires minimal sample preparation.

Original language	English
Pages (from-to)	2775-2783
Number of pages	9
Journal	Analytical Letters
Volume	53
Issue number	17
DOIs	https://doi.org/10.1080/00032719.2020.1758710
Publication status	Published - Nov 21 2020
Externally published	Yes

Keywords

2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP)
Ascorbic acid
flow injection analysis
multi-pumping flow system
total iron
wines

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Spectroscopy
Clinical Biochemistry
Biochemistry, medical
Electrochemistry

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10.1080/00032719.2020.1758710

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title = "Automated Spectrophotometric Multi-Pumping Flow System for the Determination of Total Iron in Wine",

abstract = "A new automated system based on a multi-pumping flow system (MPFS) for the spectrophotometric determination of total iron in various wine samples is presented. This analytical protocol is based on the complex formation between Fe (II) and 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP). The addition of ascorbic acid allows the determination of total iron by reducing the Fe (III) present in the samples to Fe (II). Several physical and chemical parameters, including the mixing coil length, the sample volume, the chromogenic reagent concentration, the pH, and the ascorbic acid concentration have been characterized in order to optimize the analytical conditions. The limits of detection and quantification were 34 µg L−1 and 114 µg L−1 respectively. The developed procedure requires minimal sample preparation.",

keywords = "2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP), Ascorbic acid, flow injection analysis, multi-pumping flow system, total iron, wines",

author = "Cristina Andreu and Kaewta Danchana and V{\'i}ctor Cerd{\`a}",

note = "Funding Information: This work has been funded by the Spanish Ministry of Economy and Competitiveness (MINECO Project CTQ2016-77155-R) and by FEDER. Kaewta Danchana acknowledges the financial support from the Conselleria d?Innovaci?, Recerca I Turisme of the Govern de les Illes Balears and of the Fons Social Europea (FPI/1867/2016). Publisher Copyright: {\textcopyright} 2020, {\textcopyright} 2020 Taylor & Francis Group, LLC.",

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AU - Andreu, Cristina

AU - Danchana, Kaewta

AU - Cerdà, Víctor

N1 - Funding Information: This work has been funded by the Spanish Ministry of Economy and Competitiveness (MINECO Project CTQ2016-77155-R) and by FEDER. Kaewta Danchana acknowledges the financial support from the Conselleria d?Innovaci?, Recerca I Turisme of the Govern de les Illes Balears and of the Fons Social Europea (FPI/1867/2016). Publisher Copyright: © 2020, © 2020 Taylor & Francis Group, LLC.

PY - 2020/11/21

Y1 - 2020/11/21

N2 - A new automated system based on a multi-pumping flow system (MPFS) for the spectrophotometric determination of total iron in various wine samples is presented. This analytical protocol is based on the complex formation between Fe (II) and 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP). The addition of ascorbic acid allows the determination of total iron by reducing the Fe (III) present in the samples to Fe (II). Several physical and chemical parameters, including the mixing coil length, the sample volume, the chromogenic reagent concentration, the pH, and the ascorbic acid concentration have been characterized in order to optimize the analytical conditions. The limits of detection and quantification were 34 µg L−1 and 114 µg L−1 respectively. The developed procedure requires minimal sample preparation.

AB - A new automated system based on a multi-pumping flow system (MPFS) for the spectrophotometric determination of total iron in various wine samples is presented. This analytical protocol is based on the complex formation between Fe (II) and 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP). The addition of ascorbic acid allows the determination of total iron by reducing the Fe (III) present in the samples to Fe (II). Several physical and chemical parameters, including the mixing coil length, the sample volume, the chromogenic reagent concentration, the pH, and the ascorbic acid concentration have been characterized in order to optimize the analytical conditions. The limits of detection and quantification were 34 µg L−1 and 114 µg L−1 respectively. The developed procedure requires minimal sample preparation.

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KW - total iron

KW - wines

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Automated Spectrophotometric Multi-Pumping Flow System for the Determination of Total Iron in Wine

Abstract

Keywords

ASJC Scopus subject areas

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