Application Of Chemiluminescence Based On Iridium Complexes

ECL technology integrates light-emitting electrochemical potential analysis with high sensitivityand controllability characteristics, which has a wide range of advantages including high sensitivity,wide linear range, good controllability of the reaction conditions, and so on. Flow injectionchemiluminescence technology brings the above advantages together and flow injectionchemiluminescence analysis can be efficiently analyzed according to the linear relationship betweenthe luminescence intensity and the concentration of the analyte. Both chemiluminescencetechnology arouses researches and exploration efforts by scientists. Good transition metalcomplexes among light and heat, chemical stability, high quantum efficiency, long life and otheradvantages of the excited state has become a popular research field about photovoltaic materials, inwhich Ru(bpy)32+system in the past ECL and electrical applications has played a very importantrole, but there are more researchers to work on the development of new ECL marks. Due to thepresence of a stable metal bond and other reasons, iridium complexes shows a higher luminousefficiency and more stable than bipyridine ruthenium complexes. Iridium complexes is easy todesign the preparation to facilitate adjustment by modifying the ligand, so the emission wavelengthand efficiency within the obvious advantages of such a complex study gradually arousedwidespread interest of scientists in chemiluminescence field. Oxalate mucosa has a strongstimulating effect, which can crystallize in the blood vessels and penetrate the vessel wall, causingblood vessels and necrosis, leading to bleeding, one of the important factors of water pollution.The main content of this paper is: according to some reference, bipyridine rutheniumcomplexes has the shortcoming of its poor water-soluble characteristic, so I have synthesized a kindof iridium complex containing a hydrophilic group, which can be used as a ring of expanded metalion complexes in the detection range of applications. I have done the research on optimizedphenylquinoline ester neutral iridium complex-PBS buffer-NaC2O4-KCl electroluminescentchemiluminescence detection system. Under the same conditions we can find that thechemiluminescence of iridium complex system is about twice higher than the bipyridine rutheniumluminous intensity system, and the detection limit is3.23×10-8mol L-1; Because of the lowdetection efficiency ions case of some bipyridine ruthenium complex systems, according to anumber of references about the detection of SO32-, I have synthesized a kind of ionic iridiumcomplexes based on phenyl quinoline and a sort of ionic rosin ester iridium complexes and have found the KMnO4-iridium complexes-Na2SO3-H2C2O4flow injection chemiluminescence system.after the optimization of the components in the system, in contrast to the pyridine rutheniumchemiluminescence system under the same conditions, we can realize that iridium complexes candetect SO32-ion better than bipyridine ruthenium, the detection limits of the above two system is1.59×10-7mol L-1and1.32×10-7mol L-1.