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The development of a spectroanalytical method for the determination of toxic elements in sunscreens

Grant number: 14/04251-0
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): May 17, 2014
Effective date (End): November 16, 2014
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Edenir Rodrigues Pereira Filho
Grantee:Érica Ferreira Batista
Supervisor abroad: José R. Almirall
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Local de pesquisa : Florida International University (FIU), United States  
Associated to the scholarship:12/10680-6 - Determination of toxic elements in cosmetics using different spectroanalytical techniques, BP.DR


The techniques Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS) has established as instrumental techniques with attractive analytical capacity considering the multielement features, versatility, simplicity of the operating structure and reduction of the sample preparation step. These techniques are appropriated for the analysis of different samples, including the determination of toxic components in cosmetics. The cosmetic is considered any substance intended to be placed in contact with the various external parts of the human body (epidermis, hair, nails and lips), or with the teeth and mucous membranes of the oral cavity with a view exclusively or mainly to clearing them, perfuming them, changing their appearance, correcting body odors and protecting them. The cosmetic products that are worth mentioning are sunscreens that are used daily by millions of consumers, and are usually applied directly to human skin, which may be exposed to certain elements that may cause local effects on human skin such as irritation, sensitization, allergy or photoreactions. Thus, the goal this project is to determine toxic elements (Cu, Cr, Ni and Pb) in sunscreen samples (from different countries and protection factor) employing LA-ICP-MS and LIBS. In addition, strategies will be employed to eliminate or reduce the sample preparation and chemometric tools will be employed in the proposition of classification and calibration models to data analysis. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
AUGUSTO, AMANDA DOS SANTOS; BATISTA, ERICA FERREIRA; PEREIRA-FILHO, EDENIR RODRIGUES. Direct chemical inspection of eye shadow and lipstick solid samples using laser-induced breakdown spectroscopy (LIBS) and chemometrics: proposition of classification models. ANALYTICAL METHODS, v. 8, n. 29, p. 5851-5860, 2016. Web of Science Citations: 11.
BATISTA, ERICA FERREIRA; AUGUSTO, AMANDA DOS SANTOS; PEREIRA-FILHO, EDENIR RODRIGUES. Determination of Cd, Co, Cr, Cu, Ni and Pb in cosmetic samples using a simple method for sample preparation. ANALYTICAL METHODS, v. 7, n. 1, p. 329-335, 2015. Web of Science Citations: 16.

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