The property of Rhodamine B was examined in hydrochloric and Trifluoromethyl sulfonic acid,and the standard working curves in thin polymer film were set up.

• 用紫外分光光度计分别测量盐酸、三氟甲磺酸在不同浓度时罗丹明B特征吸收的变化,选取酸浓度与罗丹明的特征吸收的变化量呈线性关系的线段部分作为标准工作曲线。