离子缔合型离子选择电极的研究——ⅩⅠⅤ.硼-苯羟乙酸络阴离子电极

Study on the Ion Associate-based Ion-Selective Electrodes XIV. A Boron Selective Electrode based on the Anionic Complex of Boron-phenylhydroxy Acetic Acid

本文报道一种硼—苯羟乙酸络阴离子电极。电极对硼—苯羟乙酸络阴离子的线性响应下限为6×10^(-6)mol/L,斜率59mV/pC(25℃)。对其它阴离子的选择性优于氟硼酸根电极。用此电极测定了稀土合金和铝钛硼合金中的硼。

A benzoylcholine PVC membrane electrode based on benzoylcho-line dodecyl benzene sulphonate has been developed.The electrode shows a linear response to benzoylcholine cation from 4×10-7 to 1×10-2 mol/L, with a slope of 54 mol/deCade ( 25℃) .Its preliminary application to the spot-detection of organophosphate pesticide poisoning is reported.