74 HOAc-NaOAc buffer medium,lidocaine hydrochloride(LDKI) reacts with eosin methylene blue(EMB) to form an ion-association complex,the colors of solutions change obviously,the absorption wavelength at 508 nm,and there exists a maximum absorption wavelength at 508 nm,a sensitive spectrophotometric method is developed for determining lidocaine hydrochloride.

In a weak acid buffer solution of HAC-NaAC, when cetylpyridinium bromide(CPB) is mixed with a dyestuff ethyl eosin(EE) after anionic surfactant is added, the colour of the soluotion becomes deeper, and the max absorbtion wavelength is at 516 nm.

In HCl-NaOAc buffer medium,cationic surfactants(CS) reacts with eosin Y(EY) or ethyl eosin(EE) to form an ion-association complex,the colors of solutions fade obviously,the maximum fading wavelength at 514 nm and 516 nm,besides,there is an absorption peak at 548 nm and 544 nm.

7,ethyl eosin reacts with sildenafil to form red ion association complexes.

Photocatalytic Hydrogen Production over SiO_2/Eosin Y-Pt Catalyst by Visible Light Irradiation;

Synthesis and fluorescence property of Eosin Y/Eu-MCM-41 mesoporous assembly material;

Fabrication of ZnO/Eosin Y Hybrid Thin Film by Electrochemical Deposition

Mensuration of ClO_2 by Bromeosin Fluorescence Quenching Method;

A new method for the determination of Cu(Ⅱ) based on the catalyzed reaction of bromeosin with potassium chlorate is described.