Evaluation of the Chemical Composition of Synthetic Leather Using Spectroscopy Techniques

Autor(es)

Neiva, Ariane Maciel ^[1] ; Pereira-Filho, Edenir Rodrigues ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Quim, GAIA, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Applied Spectroscopy; v. 72, n. 6, p. 921-932, JUN 2018.
• Citações Web of Science: 1

Resumo

Synthetic leather samples from Brazil and Paraguay were evaluated in this study using three spectroscopy techniques: inductively coupled plasma optical emission spectrometry (ICP-OES), laser-induced breakdown spectroscopy (LIBS), and wavelength dispersive X-ray fluorescence (WDXRF). The obtained information from each technique was separately inspected with principal component analysis (PCA). The concentrations of the elements determined in the synthetic leathers using ICP-OES decreased in the following order: Ca>Cr>Mg>Ba>Pb>Al>Fe>Zn>Sb>Ni with a concentration range below the limit of quantification (<LOQ, case of Ni) to 112233mg kg(-1) (case of Ca). Additionally, Cu, As, Sr, Ti, Cd, Mn, Co, and Ni were present in only few samples in a concentration range from <LOQ to 163mg kg(-1). Principal component analysis was the tool used to evaluate the samples from their chemical content obtained quantitatively using ICP-OES and qualitatively using LIBS or WDXRF spectra. The results showed that the association of PCA with spectroscopic techniques was satisfactory for data inspection of synthetic leathers according to the chemical composition. Laser-induced breakdown spectroscopy and WDXRF were able to identify the presence of toxic elements like Cr (LIBS and WDXRF) and Pb (WDXRF). (AU)

• Processo FAPESP: 11/51564-6 - Estratégias de cruzamento e de manejo para otimizar o desempenho materno e reprodutivo de ovelhas de corte, para a produção de carne e de couro ovinos de qualidade, na região sudeste
• Beneficiário: Maurício Mello de Alencar
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 15/14488-0 - Desenvolvimento de métodos analíticos para a determinação da qualidade de fertilizantes e resíduos de curtumes
• Beneficiário: Ana Rita de Araujo Nogueira
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/01513-0 - Combinação de LIBS (Laser-Induced Breakdown Spectroscopy) e ICP OES (Inductively Coupled Plasma Optical Emission Spectrometry) na análise de amostras de resíduo eletrônico (circuito eletrônico e polímeros), alimentos e líquidas de difícil preparação
• Beneficiário: Edenir Rodrigues Pereira Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular