A análise de resíduos de agrotóxicos em água é um dos requisitos da legislação de potabilidade ligadas à saúde humana. A análise de cromatografia iônica (CI) é uma alternativa técnica que vem contribuir para quantificação do herbicida glifosato e seu metabólito ácido amino metil fosfônico (AMPA) em água de consumo humano por ser rápida de preparo (filtrar e injetar), alta seletividade, boa precisão e exatidão. Esta pesquisa tem como objetivo desenvolver e validar este método para análise direta destes agrotóxicos, sem etapa de tratamento da amostra ou derivatização. Na validação proposta foram considerados os parâmetros de seletividade, exatidão e precisão, limites de detecção e quantificação, linearidade e estimativa de incerteza de medição. Os resultados obtidos indicaram que esta técnica é adequada e apresenta boa sensibilidade para a quantificação destes analitos na matriz água, sendo os resultados da validação apropriados frente aos limites máximos de concentração estipulados na Portaria 2914/11 do Ministério da Saúde.
The consumer exposure to the new harmful substances with origin in packaging which has contact with the food can occur as a result of their intentional migration or not incorporated in the food during the food chain. The paper and the cardboard are used in contact with dry food and that is because of this it is seen by the consumer as healthy. Considering that the gelatin is too consumed by children and athletes and the wood from which the packaging is made suffer chemical procedures with the insecticide pentachlorophenol (PCP) for their preservation, studied the transference and the incorporation of PCP in the secondary packaging of the edible gelatin proving effectiveness from the barrier with polypropylene (PP) use as primary packaging. The results indicate the migration with high temperature (60° C) in a short period of time (48h) when the secondary packaging was fortified with derivatized PCP into 0,01 mg L-1 concentration and put in contact with dry gelatin secured in polypropylene sachet. Other papers also point out the migration of chemical pollutants including chlorophenol and emphasize the importance of this research represent a risk of sub-acute contamination
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