A digital image-based flow-batch analyzer for iron speciation in tomato

Rodrigues, Andreia R.; Nunes, Iara S.; Fernandes, Julys Pablo Atayde; Andrade, Stéfani Iury E.; Pessoa, Amália Geiza G.; Lima, Ricardo Alexandre C.

doi:10.1016/j.jfca.2022.104998

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2024

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Cited by 3 publications

References 29 publications

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The Use of a Standard Cell Phone Camera as a Quick, Cheap, and Non-Destructive Analytical Tool to Quantify the Content of Soluble Solids in Ketchup

de Souza Zangirolami,

Leoncio,

Santos

2024

Preprint

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The Use of a Standard Cell Phone Camera as a Quick, Cheap, and Non-Destructive Analytical Tool to Quantify the Content of Soluble Solids in Ketchup

de Souza Zangirolami,

Leoncio,

Santos

2024

Preprint

View full text Add to dashboard Cite

A General Guide to the Development of Digital-Image Based Analytical Methods

Vasques Peixoto Vieira,

M. M. Barcellos,

Antonio G. Teixeira

et al. 2024

Preprint

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A Ratiometric Fluorescence Method Based on PCN-224-DABA for the Detection of Se(IV) and Fe(III)

Luo,

Chen,

et al. 2024

Biosensors

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In this study, 3,4-diaminobenzoic acid (DABA) was introduced into the porphyrin metal–organic framework (PCN-224) for the first time to prepare a ratiometric fluorescent probe (PCN-224-DABA) to quantitatively detect ferric iron (Fe(III)) and selenium (IV) (Se(IV)). The fluorescence attributed to the DABA of PCN-224-DABA at 345 nm can be selectively quenched by Fe(III) and Se(IV), but the fluorescence emission peak attributed to tetrakis (4-carboxyphenyl) porphyrin (TCPP) at 475 nm will not be disturbed. Therefore, the ratio of I345nm/I475nm with an excitation wavelength of 270 nm can be designed to determine Fe(III) and Se(IV). After the experimental parameters were systematically optimized, the developed method shows good selectivity and interference resistance for Fe(III) and Se(IV) detection, and has good linearity in the ranges of 0.01–4 μM and 0.01–15 μM for Fe(III) and Se(IV) with a limit of detection of 0.045 μM and 0.804 μM, respectively. Furthermore, the quenching pattern was investigated through the Stern–Volmer equation, and the results suggest that both Se(IV) and Fe(III) quenched on PCN-224-DABA can be attributed to the dynamic quenching. Finally, the constructed ratiometric fluorescent probe was applied in the spiked detection of lake water samples, which shows good applicability in real sample analysis. Moreover, the Fe(III) and Se(IV) contents in spinach and selenium-enriched rice were determined, respectively.

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A digital image-based flow-batch analyzer for iron speciation in tomato

Cited by 3 publications

References 29 publications

The Use of a Standard Cell Phone Camera as a Quick, Cheap, and Non-Destructive Analytical Tool to Quantify the Content of Soluble Solids in Ketchup

The Use of a Standard Cell Phone Camera as a Quick, Cheap, and Non-Destructive Analytical Tool to Quantify the Content of Soluble Solids in Ketchup

A General Guide to the Development of Digital-Image Based Analytical Methods

A Ratiometric Fluorescence Method Based on PCN-224-DABA for the Detection of Se(IV) and Fe(III)

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