Breve revis？o de métodos de determina？？o de resíduos do herbicida ácido 2,4-diclorofenoxiacético (2,4-D)

this paper supplies a revision about the main techniques of extraction, clean-up and pre-concentration of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-d) in water and soil samples, as well as chromatographic methods and immune assays for its identification and quantification.