Determination of Brilliant Blue FCF in food and cosmetic samples by ionic liquid independent disperse liquid–liquid micro-extraction

Guo, Jingkun; Wu, Hao; Du, Liming; Fu, Yongqi

doi:10.1039/c3ay40362a

Cited by 36 publications

(14 citation statements)

References 27 publications

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“…This result indicates that some discoloration processes are occurring but that they are on a considerably smaller scale than those occurring with tea, coffee, and red wine. Absorption of the synthetic dye Brilliant Blue FCF (E133) is responsible for the colour of the Colgate solution 28 . However, the absorbance value of Colgate mouthwash at 627 nm indicates a relatively low concentration of the dye, at least compared to the absorbance of colorant species in the other staining solutions; therefore, no significant staining of the composites was expected during 3-day immersion in this solution.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis

Manojlović

Lenhardt

Milićević

et al. 2015

Sci Rep

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Colour changes in Gradia Direct™ composite after immersion in tea, coffee, red wine, Coca-Cola, Colgate mouthwash, and distilled water were evaluated using principal component analysis (PCA) and the CIELAB colour coordinates. The reflection spectra of the composites were used as input data for the PCA. The output data (scores and loadings) provided information about the magnitude and origin of the surface reflection changes after exposure to the staining solutions. The reflection spectra of the stained samples generally exhibited lower reflection in the blue spectral range, which was manifested in the lower content of the blue shade for the samples. Both analyses demonstrated the high staining abilities of tea, coffee, and red wine, which produced total colour changes of 4.31, 6.61, and 6.22, respectively, according to the CIELAB analysis. PCA revealed subtle changes in the reflection spectra of composites immersed in Coca-Cola, demonstrating Coca-Cola’s ability to stain the composite to a small degree.

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Section: Resultsmentioning

confidence: 99%

Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis

Manojlović

Lenhardt

Milićević

et al. 2015

Sci Rep

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“…Some methodologies focused on the determination of a unique colorant in one or a few cosmetic matrices. In this line, Wang et al [37] proposed a simple sample treatment for the analysis of Lithol Rubine B (CI 15850) in nail preparation, lipstick and rouge, and Guo et al [35] developed a method based on ionic liquid dispersive liquid-liquid microextraction (IL-DLLME) for the determination of Brilliant Blue (CI 42090) in eau de toilette and shampoo. DLLME is a relatively recent micro-extraction technique based on a ternary component solvent system.…”

Section: Sample Preparationmentioning

confidence: 99%

“…Concerning cosmetics, there have been several methods reported in the last 10 years that combine LC and DAD for the quantitative [28,[30][31][32] and qualitative [32] analysis of multiple dyes or that apply direct spectrophotometric measurement when only one dye is considered [9,25,27,35,39] (see Table 4). In these latter methods, good limits of detection were obtained because of the concentration achieved using an extraction technique such as SPE, CPE or DLLME previous to the analysis.…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…The use of ionic liquids (IL), considered more environmentally friendly, improve the sensitivity and selectivity, becoming an interesting approach; however, dispersing solvents, heating and cooling down, ultrasonication or additional chemical reagents are frequently required for the dispersion and sedimentation of ILs, resulting in long sampling time. To avoid these additional requirements, Guo et al [35] employed 1-decyl-3-methylimidazolium tetrafluoroborate ([C10MIM][BF 4 ]) as the ionic liquid for the sample preconcentration. A full optimization of parameters affecting the micro-extraction such as volume of IL, pH and time of incubation and centrifugation was performed.…”

Section: Sample Preparationmentioning

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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“…LPME possesses high preconcentration factor and extraction efficiency, and can overcome the disadvantages of conventional LLE. Several configurations of LPME were used to determine a large number of active and nonallowed substances in different types of cosmetics [106][107][108][109][110][111][112][113][114][115][116][117].…”

Section: Lpme-based Techniquesmentioning

confidence: 99%

Current trends in sample preparation for cosmetic analysis

Zhong

2016

J of Separation Science

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The widespread applications of cosmetics in modern life make their analysis particularly important from a safety point of view. There is a wide variety of restricted ingredients and prohibited substances that primarily influence the safety of cosmetics. Sample preparation for cosmetic analysis is a crucial step as the complex matrices may seriously interfere with the determination of target analytes. In this review, some new developments (2010-2016) in sample preparation techniques for cosmetic analysis, including liquid-phase microextraction, solid-phase microextraction, matrix solid-phase dispersion, pressurized liquid extraction, cloud point extraction, ultrasound-assisted extraction, and microwave digestion, are presented. Furthermore, the research and progress in sample preparation techniques and their applications in the separation and purification of allowed ingredients and prohibited substances are reviewed.

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Determination of Brilliant Blue FCF in food and cosmetic samples by ionic liquid independent disperse liquid–liquid micro-extraction

Cited by 36 publications

References 27 publications

Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis

Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis

Analysis of Dyes in Cosmetics: Challenges and Recent Developments

Current trends in sample preparation for cosmetic analysis

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