增塑剂对1,1,1-三[1′-(2′-氧杂-4′-氧代-5′-氮杂-5′-甲基)十二烷基]丙烷PVC膜钠离子电极性能的影响

摘要/Abstract

摘要： 以1,1,1-三[1′-(2′-氧杂-4′-氧代-5′-氮杂-5′-甲基)十二烷基]丙烷(即ETH 227,Fluka No.71732)为中性载体的钠离子选择电极由于具有较强的抗钾离子干扰的能力,因而颇受注意.Guggi等首先用邻硝基苯辛醚和癸二酸二丁酯增塑,以合成的ETH227制成了K_Na,+^pot_K+,<<的PVC膜钠离子电极.

关键词: 钠离子选择电极, 增塑剂, 聚氯乙烯膜

Abstract: The effects of plasticizers and additives on the performance of PVC membrane sodium electrodes based on the title comPound, ETH 227,were investigated. It is shown that electrode with o-nitrophenyl octyl ether(2-NPOE) as plasticizer has the least K_Na,+^pot_K+(=3?10^-3, but the interference of lipophilic anions or divalent cations is serious, the limit of Nernst resPonse is 3?10^-4 mol·dm^-3 NaCl. The linear response range of the electrode with didecyl phthalate as plasticiser, is from 3?10^-4 to 1 mol·dm^-3 NaCl,and K_Na,+^pot_K+<10^-2. incorporating NaSCN would lower the internal resistance of membrane and improve the Interference-free ability for lipophilie anions.

Key words: Sodium ion-selective electrode, Plasticizer, Polyvinyl chloride, membrane

钱国英, 王瑞陵, 吴国梁, 谭干祖, 徐浚哲, 焦天权. 增塑剂对1,1,1-三[1′-(2′-氧杂-4′-氧代-5′-氮杂-5′-甲基)十二烷基]丙烷PVC膜钠离子电极性能的影响[J]. 应用化学, 1988, 0(3): 77-80.

Qian Guoying, Wang Ruiling, Wu Guoliang, Tan Ganzu, Xu Junzhe, Jiao Tianquan. THE EFFECTS OF PLASTICIZERS ON THE PERFORMANCE OF PVC MEMBRANE SODIUM ELECTRODE BASED ON 1,1,1-TRIS[1′-(2′-OXA-4′-OXO-5′AZA 5′-METHYL)DODECYL]PROPANE[J]. Chinese Journal of Applied Chemistry, 1988, 0(3): 77-80.

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增塑剂对1,1,1-三[1′-(2′-氧杂-4′-氧代-5′-氮杂-5′-甲基)十二烷基]丙烷PVC膜钠离子电极性能的影响

THE EFFECTS OF PLASTICIZERS ON THE PERFORMANCE OF PVC MEMBRANE SODIUM ELECTRODE BASED ON 1,1,1-TRIS[1′-(2′-OXA-4′-OXO-5′AZA 5′-METHYL)DODECYL]PROPANE

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