Abstract. The aim was to assess the permeation of different herbicide emulsion concentrate formulations of 2, 4-dichlorophenoxyacetic acid (2, 4-D) as 60.8 and 83.5% butoxyethyl ester (BEE) and 46.8% dimethyl amine salt (DMAS) through four types of glove materials (lined unsupported nitrile, unlined unsupported butyl, Silver Shield laminate, and Viton). This entailed the development of new microchemical techniques to allow sensitive capillary ...