An oxygen sensitive membrane which has good chemical stability

long life and high fluorescence excitation performance is prepared based on photoluminescence of Ru（ dpp）3Cl2as a ruthenium complex. Light transmission features of sensitive membrane is studied

and influences of fluorescence indicator concentration

liquid temperature

p H value and circuit parameters

etc

on intensity of fluorescence emission from sensitive membrane is investigated. At the same time

effect of different excitation light source on fluorescence characteristic and working life of sensitive membrane is discussed. Based on it

specificity detection on oxyen sensitive membrane and responsivity detections on dissolved oxygen is achieved. Experimental results show that the prepared oxygen sensitive membrane has high responsivity to dissolved oxygen

detection error maintains around 1 %

which has good application prospect in many areas

such as dissolved oxygen and glucose content measurement

microbial sensing detection

etc.