A new intercalated oxygen indicator consisting of methylene blue,a cationic surfactant,ascorbic acid and saponite was made to serve as oxygen indicator.
利用皂石的反射紫外线作用,在表面活性剂的作用下将亚甲蓝、抗坏血酸引入皂石的层间结构中,从而制成一种新型的氧气指示剂并解决了亚甲蓝易于被光降解的问题,克服了其它变色型氧气指示剂需要避光保存的问题。