Used polyvinyl alcohols(PVA) as stabilizer,under high acidity,silicon molybdenum blue and rhodamineB(RHB) can be ion associated and color reaction.

• 用聚乙烯醇（PVA）为稳定剂，在高酸度下硅钼蓝与罗丹明B发生离子缔合显色反应。