Amphoteric tetracycline-sensitive electrodes and their selectivities.
Electrodes that are sensitive to cationic and anionic species of tetracycline have been constructed. The cation-sensitive electrode responds to monoprotonated tetracycline over the pH range 1.9-3.2. The anion-sensitive electrode responds at pH 8.0-11.0 to the singly-charged tetracyclinate anion resulting from dissociation of the enolic group of the B ring. The electrode selectivities have been investigated.
Shou-Zhou
Y
Y
Institute for New Material Research, Department of Chemical Engineering, Hunan University, Changsha, People's Republic of China.
Jing
S
S
Li-Hua
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N