Simultaneous determination of preservatives and synthetic dyes in cosmetics by single-step vortex extraction and clean-up followed by liquid chromatography coupled to tandem mass spectrometry

Guerra, Eugenia; Álvarez-Rivera, Gerardo; Llompart, Marı́a; Garcı́a-Jares, Carmen

doi:10.1016/j.talanta.2018.05.054

Cited by 35 publications

(28 citation statements)

References 24 publications

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“…Recently, Guerra et al have been working on improving the simultaneous analysis of a great number of chemically different dyes in a broad range of cosmetics, including rinse-off and leave-on products [24,26,29]. In 2015 [29], they introduced the matrix solid-phase dispersion (MSPD) for the first time in the analysis of dyes in cosmetics.…”

Section: Sample Preparationmentioning

confidence: 99%

“…The Pasteur pipette was replaced by a 2 mL syringe to enable an adequate solvent elution employing the dispersant chosen as the optimum, C18. The most recent multi-dye method was also reported by Guerra et al [24]. Single-step vortex extraction and simultaneous clean-up was applied to the analysis of dyes as well as preservatives in different cosmetics, many of whom have not been analysed yet.…”

Section: Sample Preparationmentioning

confidence: 99%

“…Due to the capability of dyes to absorb in the UV-Vis spectrum, DAD or UV-Vis detectors were traditionally the preferred detectors [28,[30][31][32]. In recent years, mass spectrometry has become a valuable choice [24,26,29,33,34], given its enhanced selectivity and sensitivity; it is particularly desired in the analysis of banned compounds. Mass spectrometry overcomes limitations of DAD such as overlapping of UV-Vis spectra among matrix ingredients.…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…The combination of liquid chromatography and mass spectrometry in the analysis of dyes in cosmetics was reported for the first time by Xian et al [33] in 2013. Afterwards, Guerra et al developed several improved methods based on this analytical technique [24,26,29]. Most of the dyes used in cosmetics and so considered in this review are sodium or calcium salts which contain in their structures one or more ionized groups such as sulphonic groups.…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…Thus, the composition of mobile phase must be investigated to achieve a compromise between good separation and performance. In this way, the use of only 3 mM ammonium acetate in the aqueous mobile phase was proposed [24,26]. This salt concentration was enough to avoid peak tailing while improving the chromatographic separation for quite a number of analytes with satisfactory limits of quantification.…”

Section: Analytical Techniquesmentioning

confidence: 99%

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Analysis of Dyes in Cosmetics: Challenges and Recent Developments

2018

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Colour plays a decisive role in the marketing of a cosmetic product. Among thousands of substances used to colour, synthetic dyes are the most widespread in the industry. Their potential secondary effects on human health and different regulatory requirements for their use between the main world markets make analytical control necessary to guarantee the safety of a cosmetic product. However, methodologies for the determination of dyes in cosmetics are scarce with respect to those reported for other cosmetic ingredients such as preservatives or ultraviolet UV filters. In addition, most of the existing methods just consider a part of the total of dyes regulated. On the other hand, many methods have been developed for matrices different than cosmetics such as foodstuff, beverages or wastewater. The current paper reviews the recent developments in analytical methodologies for the control of synthetic dyes in cosmetics proposed in the international scientific literature in the last 10 years (2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018). A trend towards the use of miniaturized extraction techniques is evidenced. Due to the hydrophilic nature of dyes, liquid chromatography is the most usual choice in combination with absorbance detectors and, more recently, with mass spectrometry.

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Section: Sample Preparationmentioning

confidence: 99%

Section: Sample Preparationmentioning

confidence: 99%

Section: Analytical Techniquesmentioning

confidence: 99%

Section: Analytical Techniquesmentioning

confidence: 99%

Section: Analytical Techniquesmentioning

confidence: 99%

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Analysis of Dyes in Cosmetics: Challenges and Recent Developments

2018

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A rapid and environmentally friendly method for determination of parabens preservatives in flavors by supercritical fluid chromatography‐tandem mass spectrometry

Yang

Dong

Zhang

et al. 2022

J of Separation Science

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A rapid method for determination of parabens preservatives (methyl paraben, ethyl paraben, isopropyl paraben, propyl paraben, isobutyl paraben, and butyl paraben) in flavors was established by using supercritical fluid chromatographytandem mass spectrometry combined with dispersive solid-phase extraction.After adding methanol and primary secondary amine to the sample simultaneously, high extraction efficiency and good sample cleanup could be obtained by simple shaking. Parabens were well separated on a Chiralpak IG-3 column in 6 min by gradient elution. Recoveries from spiked blank samples at 0.5, 1.0, and 5.0 mg/kg were determined to be 88.3-106.6%with relative standard deviations less than 8.0%. All analytes achieved good linear relation (r ≥ 0.999 2). The limits of detection for all analytes ranged from 0.03 to 0.09 mg/kg and the limits of quantification from 0.11 to 0.31 mg/kg, respectively. A total of 20 actual samples were successfully analyzed by taking the proposed method. Being simple, rapid, green, and reliable, this method can be taken for the determination of parabens preservatives in flavors.

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Facile fabrication of hydrogels for removal of crystal violet from wastewater

Faizan

Bakhtawara

Shah

2021

Int. J. Environ. Sci. Technol.

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Purification of dye-laden water endures to be immensely challenging owing to the occurrence of highly persistent and nonbiodegrade dyes, which pose a potential threat to humans, flora, fauna, and environment. The environmental problem was addressed by facile fabrication of poly [(2-acrylamido-2-methyl-1-propane sulfonic acid-co-acrylamide-co-acrylic acid)] hydrogels cross-linked via sodium borate (SB), graphene oxide (GO) or N,N-methylenebisacrylamide (MBA) for elimination of crystal violet (CV) from water. The capability of water uptake was recorded in terms of per cent (%) swelling, which exhibited the attainment of swelling equilibrium in 24 h with corresponding maximum per cent swelling of 2830 for HBR. The sorption capability of the hydrogels was investigated as a function of dosage, contact time, concentration, pH, and temperature. Relative to its other counter parts, the sodium borate cross-linked hydrogels demonstrated highest sorption capability, i.e. 44 mg.g −1 owing to the greater number of available sites. The sorption of CV onto the hydrogels followed pseudo-second-order kinetics and Freundlich isotherm models. The process of CV sorption onto the hydrogels was endothermic and spontaneous accompanied with entropy rise after sorption.

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Simultaneous determination of preservatives and synthetic dyes in cosmetics by single-step vortex extraction and clean-up followed by liquid chromatography coupled to tandem mass spectrometry

Cited by 35 publications

References 24 publications

Analysis of Dyes in Cosmetics: Challenges and Recent Developments

Analysis of Dyes in Cosmetics: Challenges and Recent Developments

A rapid and environmentally friendly method for determination of parabens preservatives in flavors by supercritical fluid chromatography‐tandem mass spectrometry

Facile fabrication of hydrogels for removal of crystal violet from wastewater

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