Abstract: The invention relates to an optochemical sensor membrane based on color indicators and sorbents for use in solid-phase extraction and to a method for producing the same. The optochemical sensor membrane consists of a sintered membrane from a thermally deformable powdery sorbent material and a color indicator bound to the sorbent material and produced by homogeneously mixing sorbent material particles with a color indicator solution, drying the separated and washed particles, processing the dried solid particles to give a homogeneous powder, compacting the resulting powder in a mold at 25 to 35 bar and heating the sorbent material to sintering temperature, cooling it off and removing it from the mold. The membranes so produced have a homogeneous structure and excellent chemical and mechanical stability.