Ion-selective electrodes
    1.
    发明授权
    Ion-selective electrodes 失效
    离子选择电极

    公开(公告)号:US5132345A

    公开(公告)日:1992-07-21

    申请号:US624623

    申请日:1990-12-10

    IPC分类号: G01N27/333

    CPC分类号: G01N27/333

    摘要: An ion-selective polymeric membrane for an electrochemical sensor for use in analytical chemistry, comprisinga) a supporting matrix e.g. of PVC, andb) an ionophore selected from calixarene or oxacalixarene derivatives of the formula IV ##STR1## wherein n+m=3-8;m=0-8;n=0-8;a, which may be the same or different on each aryl group, is 0 or 1;R.sup.2 is alkyl, aryl, alkaryl, alkoxy, alkoxyalkoxy, aryloxy, alkaryloxy, alicyclic, alkylthio, arylthio, alkarylthio, or a substituted derivative thereof;R.sup.3 is --H, alkyl or alkenyl;X is --OH or a group containing an acrylate or methacrylate functional group;provided that when X is --OH, n is at least 1/2(n+m);and provided that when m=0, n=4, a=0 and R.sup.3 is alkyl or allyl, R.sup.2 is not alkoxy having 4 or more carbon atoms in the alkyl group;and provided that when m=0, n=4, a=0 and R.sup.3 is t-butyl, R.sup.2 is not methoxy or ethoxy;or of the formula V ##STR2## wherein R.sup.4 is alkyl; or polymers of those compounds of the formula IV in which X is a group containing an acrylate or methacrylate group.New compounds in which R.sup.2 is --SCH.sub.2 CH.sub.3 are described.Selectivity coefficients and slope measurements are given for the ionophores in PVC electrodes which are selective for sodium, potassium and caesium.

    摘要翻译: 一种用于分析化学中的用于电化学传感器的离子选择性聚合物膜,包括:a) 的PVC,和b)选自式IV的杯芳烃或氧杂七环芳烃衍生物的离子载体,其中n + m = 3-8; m = 0-8; n = 0-8; a在每个芳基上可以相同或不同,为0或1; R2是烷基,芳基,烷芳基,烷氧基,烷氧基烷氧基,芳氧基,烷氧基,脂环族,烷硫基,芳硫基,烷芳硫基或其取代衍生物。 R3是-H,烷基或烯基; X是-OH或含有丙烯酸酯或甲基丙烯酸酯官能团的基团; 条件是当X为-OH时,n为至少1/2(n + m); 并且条件是当m = 0时,n = 4,a = 0和R3是烷基或烯丙基,R2不是烷基中具有4个或更多个碳原子的烷氧基; 并且条件是当m = 0时,n = 4,a = 0和R3是叔丁基,R 2不是甲氧基或乙氧基; 或其中R 4是烷基的式V V 或其中X为含丙烯酸酯或甲基丙烯酸酯基团的式Ⅳ化合物的聚合物。 描述了其中R2是-SCH2CH3的新化合物。 对于对钠,钾和铯有选择性的PVC电极中的离子载体,给出了选择性系数和斜率测量。