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本文以乙基紫与十二烷基苯磺酸盐形成的离子缔合物为电活性物、邻苯二甲酸二丁酯为增塑剂研制成涂碳(PVC膜)十二烷基苯磺酸根离子选择电极。此电极线性响应范围为1×10~(-3)—2×10~(-6)M,斜率为55—57mV/PDBS-(10—18℃),检测限为5.6×10~(-7)M。用固定干扰法测试了SO_4~(2-)、Cl~-、Br~-、I~-、Ac~-、NO_3~-、H_2PO_4~-、CH_3—(?)—SO_3-等阴离子的选择性系数,其值均小于6×10~(-4),前六种离子的选择系数与相应的电荷—热
In this paper, ethyl violet and dodecyl benzene sulfonate form ion-association for the electroactive substance, dibutyl phthalate as a plasticizer developed into carbon coating (PVC film) dodecylbenzenesulfonamide Acid ion selective electrode. The linear response range of this electrode is 1 × 10 -3 -2 × 10 -6 M with a slope of 55-57 mV / PDBS- (10-18 ° C.) and a detection limit of 5.6 × 10 -7 ) M. The selectivity of SO_4 ~ (2 -), Cl ~ -, Br ~ -, I ~ -, Ac ~ -, NO_3 ~ -, H_2PO_4 ~ -, CH_3 - (~) - SO_3- Coefficient, the value is less than 6 × 10 ~ (-4), the selection coefficient of the first six ions and the corresponding charge-heat