Procedimiento de colección y preservación de muestras de pelo humano para la determinación de metales

a procedure for the collection and preservation of human hair samples for the quantitative determination of metals is described. its application allows to obtain betwen 0.5 and 1.0 g of sample taken from the occipital region (vertex posterior). in its making, the recommendations carried out by the international atomic energy agency and other institutions have been compiled.