The invention relates to a polymer composition comprising pH-sensitive fluorescent dyes, to an ionic strength-independent optical sensor for pH value determination that contains the composition in the form of a membrane on a transparent support material, and to an optical process, according to the fluorescence method, that renders possible highly accurate pH value determination independently of the ionic strength of the test solution. The process is especially suitable for the determination of the pH value of physiological solutions, especially for the determination of the pH value of blood.
本发明涉及一种包含对 pH 值敏感的荧光
染料的聚合物组合物,涉及一种与离子强度无关的用于测定 pH 值的光学传感器,该传感器在透明支撑材料上以膜的形式包含该组合物,还涉及一种根据荧光方法的光学过程,该过程可实现与测试溶液的离子强度无关的高精度 pH 值测定。该工艺尤其适用于生理溶液 pH 值的测定,特别是血液 pH 值的测定。