An evaluation of analytical techniques for determination of lead, cadmium, chromium, and mercury in food-packaging materials

Perring, L.; Alonso, Marie-Isabelle; Andrey, Daniel; Bourqui, B.; Zbinden, Pascal

doi:10.1007/s002160100716

Cited by 54 publications

(55 citation statements)

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“…The use of sulfuric acid is suggested for sample dissolution purposes in the elemental analysis of food-packaging materials [1], petroleum products [2,3], fish tissues [4] or minerals [5] among others [6,7]. Nevertheless, sulfuric acid is preferably avoided by ICP-MS users since it is a source of spectral and nonspectral interferences [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Non-spectral interferences due to the presence of sulfuric acid in inductively coupled plasma mass spectrometry

García-Poyo¹,

Grindlay²,

Gras³

et al. 2015

Spectrochimica Acta Part B: Atomic Spectroscopy

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Section: Introductionmentioning

confidence: 99%

Non-spectral interferences due to the presence of sulfuric acid in inductively coupled plasma mass spectrometry

García-Poyo¹,

Grindlay²,

Gras³

et al. 2015

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…[22,23] The release of lead and cadmium were the highest when the pot was processed with the 4% acetic acid, such that the 4% acetic acid was often selected by various national standards across the world as the soak solution for checking whether the released amounts of lead and cadmium from pots meet the standards.…”

Section: Effect Of Temperature On Migration Of Lead and Cadmiummentioning

confidence: 99%

Migration law of lead and cadmium from Chinese pots during the cooking process

Zhou

Rui

Wang

et al. 2017

International Journal of Food Properties

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This study used iron pot, aluminum alloy pot, and ceramic pot in exploring the migration law of lead and cadmium from pots to food during the cooking process. For this purpose, the pots were contacted with food simulation solutions such as distilled water, 4% acetic acid, 15% ethanol, and edible vegetable oil under normal and high temperatures. Results showed that the migration of lead and cadmium was significantly affected by high temperature, and the released amounts of lead and cadmium were increased with the cooking time. The pot material and the properties of food also affected the migration of lead and cadmium during the cooking process. When contacting with water, 4% acetic acid, and 15% ethanol simulation solutions, the released amounts of lead and cadmium from iron pot were increased more significantly than that in other pots (p < 0.05). Meanwhile, the released amounts of lead and cadmium from aluminum alloy pot and iron pot were firstly increased and then decreased over cooking time, although migration of lead and cadmium from ceramic pot is keeping increasing when contacting with vegetable oil. The migration of lead and cadmium from three different pots was positively correlated with the concentration of acetic acid solution. The migration of lead and cadmium was also affected by the concentration of ethanol. When the pots were contacted with 15% ethanol, the released amounts of lead and cadmium were the highest among those in other simulation solutions.ARTICLE HISTORY

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“…Uma grande dificuldade na utilização da ablação a laser para a determinação de metais em materiais poliméricos é a necessidade de padrões de calibração sólidos, de composição semelhante à amostra, os quais nem sempre se encontram disponíveis comercialmente. Embora existam alguns, como para Cd em polietileno 20,21 (padrão IRMM-VDA N° 001 a 004) e cádmio, cromo e chumbo, também em polietileno (BCR-680), 59 são muito poucos, considerando-se a diversidade de material polimérico existente, os quais apresentam características diferenciadas.…”

Section: Amostragem Direta De Polímerosunclassified

A espectrometria atômica e a determinação de elementos metálicos em material polimérico

Cadore¹,

Matoso²,

Santos³

2008

Quím. Nova

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Recebido em 16/4/07; aceito em 26/10/07; publicado na web em 1/9/08 ATOMIC SPECTROMETRY AND THE DETERMINATION OF METALS IN POLYMERIC MATERIALS. Polymeric materials are widely used in the chemical industry and are part of our daily lives. Inorganic species may be added to them as additives, anti-oxidizing agents, stabilizers, plasticizers, colorants and catalysts and may be present in a wide range of concentrations. Their determination demands the development of analytical methods considering different kinds of polymeric materials, their composition and the final use of the material. Although many different analytical techniques may be used, this review emphasizes those based on atomic absorption and emission spectrometry. Solid sampling techniques and digestion methods are described and discussed and compared considering published results.Keywords: polymers; inorganic constituents; polymer dissolution. INTRODUÇÃOOs polímeros constituem um importante grupo de materiais de engenharia pela sua facilidade de produção e variadas aplicações. Esses materiais incluem desde líquidos de baixa viscosidade e borrachas elásticas até sólidos rígidos. 1,2Com a finalidade de melhorar as propriedades físicas dos polímeros, especialmente as mecânicas e térmicas, são adicionados compostos denominados aditivos, que podem ser: estabilizador, plastificante, carga, corante e pigmento, lubrificante, catalisador etc. Muitos destes aditivos são compostos inorgânicos e com o crescente uso dos polímeros, principalmente os plásticos, nas indústrias de alimentos (embalagens) e de brinquedos existe uma necessidade crescente de métodos para determinação de íons de metais, em especial aqueles que podem apresentar caráter tóxico. 3,4 A escolha de uma técnica analítica adequada para a determinação de elementos metálicos em polímeros depende de vários fatores: preparo de amostra, limite de detecção das técnicas disponíveis, precisão, exatidão, faixa de concentração, interferências e tempo de análise. Esses fatores serão discutidos ao longo deste trabalho, que avalia o uso de técnicas espectroanalíticas, baseadas nos fenômenos de absorção e emissão atômica. A espectrometria de absorção atômica com chama (FAAS) ou com atomização eletrotérmica (ETAAS e, especialmente GF AAS, espectrometria de absorção atômica com forno de grafite) e a espectrometria de emissão óptica em plasma com acoplamento indutivo (ICP OES) são técnicas bem estabelecidas e bastante utilizadas em laboratórios de pesquisa, desenvolvimento e prestação de serviços. A técnica de espectrometria de massas com plasma acoplado indutivamente (ICP-MS), a espectrometria de emissão com plasma induzido por laser (LIBS), a fluorescência de Raios-X (XRF) e a aná-lise por ativação com nêutrons (NAA) também são utilizadas, porém em menor escala, devido a diferentes fatores como complexidade da técnica, custo operacional, limite de detecção, etc.A determinação de elementos metálicos em material polimérico só recentemente despertou o interesse da comunidade científica mundial e, no Brasil, poucos gr...

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An evaluation of analytical techniques for determination of lead, cadmium, chromium, and mercury in food-packaging materials

Cited by 54 publications

References 0 publications

Non-spectral interferences due to the presence of sulfuric acid in inductively coupled plasma mass spectrometry

Non-spectral interferences due to the presence of sulfuric acid in inductively coupled plasma mass spectrometry

Migration law of lead and cadmium from Chinese pots during the cooking process

A espectrometria atômica e a determinação de elementos metálicos em material polimérico

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