It is difficult for cesium transporting through the membrane by the specific anion exchange system in the form of CsCO3- because of the presence of complex anion in the cesium 3,5-dinitrosalicylate and cesium 5-aminotetrazole.

• 3,5-二硝基水杨酸铯、5-氨基四唑铯中有机阴离子的存在使铯很难以CsCO3-的形式依靠阴离子通道跨膜,NaHCO3的加入有利于天冬氨酸铯中铯的跨膜;