We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1–30 mg⋅L⁻¹ with the detection limit 0.03 mg⋅L⁻¹. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control.

我们开发了一种新的基于Zr（IV）的聚甲基丙烯酸酯和固定化的茜素红络合物的透明聚合物光电二极管，用于数字比色和固相分光光度法测定氟离子。接触氟阴离子后，基质的颜色从紫色变为黄色。我们为彩色图像开发了一种处理算法，该算法可帮助计算选定的光电图像中RGB色彩坐标系的平均值，并将其转换为氟化物浓度值。建议方法的分析信号的线性范围为0.1–30 mg·L ^-1，检测极限为0.03 mg·L ^-1。与其他方法相比，改性聚甲基丙烯酸酯基质实际上是一种即用型比色系统，可提供饮用水质量控制的快速结果。