SODIUM-ION SELECTIVE ELECTRODES BASED ON LIPOPHILIC 16-CROWN-5 DERIVATIVES

被引：17

作者：

SUZUKI, K

HAYASHI, K

TOHDA, K

WATANABE, K

OUCHI, M

HAKUSHI, T

INOUE, Y

机构：

[1] HIMEJI INST TECHNOL,DEPT APPL CHEM,HIMEJI,HYOGO 67122,JAPAN

[2] HIMEJI INST TECHNOL,DEPT MAT SCI,HIMEJI,HYOGO 67122,JAPAN

来源：

ANALYTICAL LETTERS | 1991年 / 24卷 / 07期

关键词：

CROWN ETHER; ION SELECTIVITY; SODIUM ION SELECTIVE ELECTRODE; 16-CROWN-5; DERIVATIVES;

D O I：

10.1080/00032719108052955

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Six kinds of lipopholic 16-crown-5 derivatives possessing double side-chains were synthesized. The Na+-selectivities were examined with poly(vinyl chloride) (PVC) matrix-membrane electrodes using these crown compounds. It is an effective way for obtaining high Na-selectivity by introducing a bulky side-chain such as a benzyloxymethyl group into the 16-crown-5. The electrodes based on 16-crown-5 derivatives having both a methyl or ethyl group and a benzyloxymethyl group at the pivot carbon (C-15) (3 or 4, see Figure 1) exhibited excellent Na+-selectivity over K+ (log k(Na,K) = -2.65 and -2.75 for 3 and 4, respectively).

引用

页码：1085 / 1091

页数：7

共 16 条

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AMMANN D, 1986, ION SELECTIVE MICROE, pCH7

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