Fluorescence of alizarin complexone and its metal complexes

Kunkely, Horst; Vogler, Arnd

doi:10.1016/j.inoche.2006.11.020

Cited by 22 publications

(8 citation statements)

References 19 publications

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“…Anthraquinones are the largest group of natural quinones and are the basis of a variety of natural colorants. Az is a mordant type dye and due to the α-OH group can react with metal ions forming complexes whose color vary with the cation nature and work conditions [26] [27].…”

Section: Resultsmentioning

confidence: 99%

New Analytical Methodology for Sb(III) Traces Quantification as Emergent Contaminant in Drinks Packaged PET Samples by Solid Surface Fluorescence

Talio¹,

Feresin²,

Muñoz³

et al. 2019

AJAC

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Emerging contaminants constitute a set of substances that are released into the environment for which regulations are currently not established for their environmental monitoring, being antimony one of them. A new methodology for Sb(III) traces monitoring by solid surface fluorescence is proposed. The metal was complexed with alizarine (Az) as fluorosphore reagent in alcaline medium in presence of the bile salt sodium cholate. To isolate the analyte of matrix constituents, a preconcentration/separation strategy on filter paper was introduced prior to determination step. The solid surface fluorescence was measured λ em = 450 nm and λ exc = 363 nm using a solid sampler holder. Under optimal conditions, the limits of detection and quantification of proposed methodology were 0.08 and 0.24 µg•L −1 , respectively, showing a linear range from 0.24 to 304.4 µg•L −1 with good sensitivity and adequate selectivity. It was applied to the Sb(III) traces determination present in drinking water and beverages samples packaged in polyethylene terephthalate (PET) bottles widely consumed in Argentina. The combination of a preconcentration step on common filter paper and the inherent sensitivity of photoluminescent methods have permitted to achieve sensitivity similar to atomic spectroscopies using a lower price instrument typical in control laboratories. Precision and accuracy were tested with excellent agreement. Results were truenessed by ETAAS with satisfactory concordance.

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Section: Resultsmentioning

confidence: 99%

New Analytical Methodology for Sb(III) Traces Quantification as Emergent Contaminant in Drinks Packaged PET Samples by Solid Surface Fluorescence

Talio¹,

Feresin²,

Muñoz³

et al. 2019

AJAC

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“…Carminic acid is a fluorophore that emits light from an excited singlet to a single ground state. , Fluorescence analysis is a common method for nondestructively analyzing art work and has been used to identify carmine-based pigments in artifacts . Many of the carminic acid/metal complexes also luminesce, generally with excitation and emission wavelengths red-shifted relative to those of the free base . The complex can undergo an excited state proton transfer leading to multiple peaks in the fluorescence spectrum. ,, …”

Section: Resultsmentioning

confidence: 99%

“…Many of the carminic acid/metal complexes also luminesce, generally with excitation and emission wavelengths red-shifted relative to those of the free base . The complex can undergo an excited state proton transfer leading to multiple peaks in the fluorescence spectrum. ,, …”

Section: Resultsmentioning

confidence: 99%

“…9,10 The characteristic peaks [with molar absorptivities (M −1 cm −1 )] for absorption spectrum of carminic acid in water are 531 (1700), 496 (2700), 468 (2600), 316 (4100), 279 (12,200), 222 (7200). The characteristic peaks [with molar absorptivities (M −1 cm −1 )] for absorption spectrum of carmine are 554 (4400), 518 (5800), 480 (4400), 334 (8200), 281 (17,900), 226 (19,500).…”

Section: Spectroscopic Characterization Methodsmentioning

confidence: 99%

“…17 The complex can undergo an excited state proton transfer leading to multiple peaks in the fluorescence spectrum. 10,17,18 ATR-FTIR Spectroscopy. Peaks in the CO stretching region (1650−1800 cm −1 ) are observed for both carminic acid and carmine.…”

Section: Spectroscopic Characterization Methodsmentioning

confidence: 99%

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An Advanced Spectroscopy Lab That Integrates Art, Commerce, and Science as Students Determine the Electronic Structure of the Common Pigment Carminic Acid

et al. 2016

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Carminic acid and its metal derivatives have been used widely as pigments for fabrics and art, and more recently as a colorant for food. An undergraduate teaching laboratory is described in which students are instructed to design and execute experimental studies to obtain detailed information about the electronic structure, metal complex formation, redox properties, and photochemical stability of extracted carminic acid. The lab maintains room for student innovation and is wellsuited to upper-level undergraduates in an advanced spectroscopy lab. Students are invited to apply knowledge previously gained through highly directed experiments to the analysis of an unfamiliar, complex, and relevant problem. The laboratory lends itself to flexibility in implementation but is designed to deepen students' understanding of UV−vis spectroscopy, fluorescence spectroscopy, IR spectroscopy, electrochemistry, pH and metal spectrophotometric titrations, and experimental determination of the kinetic behavior of UV-induced decomposition.

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Colorimetric chemosensor for Ni²⁺ based on alizarin complexone and a cationic polyelectrolyte in aqueous solution

Inoue

Aikawa

Fukushima

2019

J of Applied Polymer Sci

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A new and convenient chemosensor for detecting Ni2+ in aqueous buffer has been developed by mixing an anionic organic dye, alizarin complexone (ALC) and a cationic polyelectrolyte, poly(diallyldimethylammonium chloride) (PDADMAC). After addition of Ni2+, the chemosensor exhibits a remarkable bathochromic shift with a significant color change from red to blue, while other metal ions did not induce such a change. The color change may be attributed to the aggregate formation of an ALC‐based Ni2+ complex on the surface of PDADMAC. The results showed that the ALC and PDADMAC mixture can be applied to detect Ni2+ selectively with colorimetric changes. This investigation can lead to the construction of new chemosensors by facile and simple mixture of a water‐soluble dye and an oppositely charged polyelectrolyte. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47496.

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Fluorescence of alizarin complexone and its metal complexes

Cited by 22 publications

References 19 publications

New Analytical Methodology for Sb(III) Traces Quantification as Emergent Contaminant in Drinks Packaged PET Samples by Solid Surface Fluorescence

New Analytical Methodology for Sb(III) Traces Quantification as Emergent Contaminant in Drinks Packaged PET Samples by Solid Surface Fluorescence

An Advanced Spectroscopy Lab That Integrates Art, Commerce, and Science as Students Determine the Electronic Structure of the Common Pigment Carminic Acid

Colorimetric chemosensor for Ni²⁺ based on alizarin complexone and a cationic polyelectrolyte in aqueous solution

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Fluorescence of alizarin complexone and its metal complexes

Cited by 22 publications

References 19 publications

New Analytical Methodology for Sb(III) Traces Quantification as Emergent Contaminant in Drinks Packaged PET Samples by Solid Surface Fluorescence

New Analytical Methodology for Sb(III) Traces Quantification as Emergent Contaminant in Drinks Packaged PET Samples by Solid Surface Fluorescence

An Advanced Spectroscopy Lab That Integrates Art, Commerce, and Science as Students Determine the Electronic Structure of the Common Pigment Carminic Acid

Colorimetric chemosensor for Ni2+ based on alizarin complexone and a cationic polyelectrolyte in aqueous solution

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Product

Resources

About

Colorimetric chemosensor for Ni²⁺ based on alizarin complexone and a cationic polyelectrolyte in aqueous solution