At least two electrodes in the measurement chamber are brought into direct contact with the pharmaceutical formulation / sample such that the electrodes are electrically connected to each other through the pharmaceutical formulation / sample, and the resistance of the pharmaceutical formulation / sample is determined by means of the electrodes, A method for determining the water content of a preferably solid pharmaceutical formulation / sample is proposed in which the water content and / or sample quality of the pharmaceutical formulation / sample is determined using ohmic resistance. [Selection] Figure 1測定チャンバにおいて少なくとも2つの電極が、電極が医薬製剤/試料を通じて互いに電気的に接続されるように医薬製剤/試料と直接接触させられ、医薬製剤/試料の抵抗が、電極の手段によって決定され、医薬製剤/試料の含水量及び/又は試料品質が、オーム抵抗を用いて決定される好ましくは固形の医薬製剤/試料の含水量を決定する方法を提案する。【選択図】図1