涂碳型PVC膜氧氟沙星选择电极的研制与应用

Preparation and Application of A Coated Carbon PVC Membrane of Ofloxacin Selective Electrode

报道了一种以氧氟沙星碘化物与碘化铋的分子缔合物为电活性物的新型涂碳ＰＶＣ膜氧氟沙星选择电极．电极的能斯特响应范围为１．０×１０－５～３．２×１０－２ｍｏｌ／Ｌ，斜率为３１ｍＶ／ｐＣ，电极响应迅速，重现性好．用此电极对药片中的氧氟沙星进行测定，结果与紫外分光光度法相符．

A new coated carbon PVC membrane ofloxacin selective electrode based on ofloxacin iodide and bismuth iodide molecular association complex is reported. The electrode exhibits Nernst response for ofloxacin with a slope of 31mV/pC over the concentration range of 1.0×10 -5 -3.2×10 -2 mol/L. The result of the determination of ofloxacin tablte is in agreement with that of ultraviolet spectrophotometry.