Analytical Determination of Benzophenone-3 in Sunscreen Preparations Using Boron-Doped Diamond Electrodes

Laranjeira, Michelli Thomaz; Lima, Fábio de; Oliveira, Sílvio C. de; Ferreira, Valdir Souza; Oliveira, Reinaldo Cunha de

doi:10.4236/ajac.2011.23047

Cited by 10 publications

(3 citation statements)

References 53 publications

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“…Our research group has demonstrated that electroanalytical techniques can be effectively used to develop alternative methods, by using these techniques it was possible to quantify several active sunblocking agents after analyzing different cosmetic samples [14][15][16][17][18]. Accordingly, in one of our developed methods [14], differential-pulse polarography and a mercury-dropping electrode were used to determine 2-ethylhexyl-4-methoxycinnamate (EHMC), individually and in the presence of 2-hydroxy-4-methoxybenzophenone (BENZO-3) or 4-methylbenzylidene camphor (4-MBC).…”

Section: Introductionmentioning

confidence: 99%

“…On the proposed methods, 4-MBC [15] as well as 4-MBC, BENZO-3, and OMC [16] were determined at trace levels in commercial sunscreen products via a simple and fast pre-treatment protocol. In another work, a method employing cyclic and square wave voltammetry was used to study the voltammetric behavior and to determine BENZO-3 onto a boron-doped diamond (BDD) electrode [17]. The methodology was applied to the analysis of commercial preparations and determination of BENZO-3, as the active ingredient, at concentration levels of 1.0×10 −5 mol L −1 .…”

Section: Introductionmentioning

confidence: 99%

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Voltammetric analysis of sun-block preparations containing octocrylene and its association with 2-Hydroxy-4-methoxybenzophenone and octyl methoxycinnamate

Ferreira

Júnior

Oliveira

et al. 2013

Microchemical Journal

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a b s t r a c tIn this work, an adsorptive cathodic stripping voltammetric method based on square wave voltammetry (SWV) was developed for determination of the sunscreen agent octocrylene (OCR) individually and simultaneously with 2-Hydroxy-4-methoxybenzophenone (BENZO-3) and octyl methoxycinnamate (OMC). All voltammetric experiments were conducted in a mixture 0.04 mol L −1 BR buffer: ethanol (80:20, v:v) using a hanging mercury drop electrode (HMDE) as working electrode. The proposed method could be successfully used to analyze commercial sun-block preparations containing OCR alone and combined with BENZO-3 and OMC. For all analyzed samples, the voltammetric method has allowed fast, simple and reliable determination of these sunscreen agents with minimal sample pre-treatment requirements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Voltammetric analysis of sun-block preparations containing octocrylene and its association with 2-Hydroxy-4-methoxybenzophenone and octyl methoxycinnamate

Ferreira

Júnior

Oliveira

et al. 2013

Microchemical Journal

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“…These studies are essential to ensure that the product is stable throughout its designated shelf life. The stability was carried out for thirty days at temperatures 40 ± 2°C and relative humidity at 75 ± 5% using stability chamber 12,13,14 .…”

Section: Stability Studies As Per Ich Guidelinesmentioning

confidence: 99%

Formulation and Evaluation of Sun Protective Topical Preparation

Pachpawar¹,

Mahajan²,

Kharwade³

2018

Int. Res. J. Pharm.

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In recent days, many people are facing problem of sun tanning and darkening of skin. Sun tanning causes erythema (sunburn inflammation), reddening of skin, local or systemic immunosuppression, photoaging and photocarcinogenesis. Skin is a delicate organ of body, thus by considering the facts related to this attempt are made to develop cream having Sunprotective as well as Fairness activity with improved user compliance and avoidance of undesirable effect. It is reported that Oxybenzone gives protection against UV B rays. Hence the present work is a humble attempt to evaluate sunscreen activity of oxybenzone along with the fairness activity of Arbutin. The procured sample of the chemical material was first evaluated for their quality by determining colour, odour, pH, melting point, residue on ignition, loss on drying and % purity. Proper cream base was formulated by taking different trials. Three different base trials were then evaluated. On the basis of evaluation results of pH, viscosity and appearance the base trial 2 (B2) was selected for incorporation of active ingredients into the base. Cream containing 6 % of Oxybenzone and 1.5 % of Arbutin was selected for the evaluation of fairness activity and from the observation, it was concluded that the cream improves complexion, makes the skin soft and ensure ease of application. Hence it is concluded that it may be used as Sunscreen and Fairness cream.

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Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes

et al. 2020

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The several outstanding properties of boron‐doped diamond electrodes (BDDEs) have allowed their application for various purposes, among them electrochemical sensing. However, the electrochemical response of many redox species on BDDEs can be strongly dependent on whether their surfaces are predominantly hydrogen‐ (HT) or oxygen‐terminated (OT). Fortuitously, electrochemical pretreatments themselves can be used to enrich in situ the BDEE surface in one or the other type of termination. The surface of a cathodically pretreated BBDE (CPT‐BDDE) becomes enriched in HTs, whereas that of an anodically pretreated BDDE (APT‐BDEE) becomes enriched in OTs. Thus, when suitable, the electrochemical activity of a BDDE for a given analyte may be tuned by electrochemical pretreatments, yielding enhanced sensing properties. The main purpose of this review is the compilation and discussion of papers published after 2009 reporting on electroanalytical applications based on a CPT‐BDDE or an APT‐BDDE. Procedures to perform proper electrochemical pretreatments are also discussed.

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Analytical Determination of Benzophenone-3 in Sunscreen Preparations Using Boron-Doped Diamond Electrodes

Cited by 10 publications

References 53 publications

Voltammetric analysis of sun-block preparations containing octocrylene and its association with 2-Hydroxy-4-methoxybenzophenone and octyl methoxycinnamate

Voltammetric analysis of sun-block preparations containing octocrylene and its association with 2-Hydroxy-4-methoxybenzophenone and octyl methoxycinnamate

Formulation and Evaluation of Sun Protective Topical Preparation

Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes

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