AN OPTICAL SENSOR FOR THE DETECTION OF CD(II) IONS

被引：10

作者：

CZOLK, R

REICHERT, J

ACHE, HJ

机构：

[1] Kernforschunszentrum Karlsruhe GmbH, Institut für Radiochemie, D- 7500 Karlsruhe

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 1991年 / 26卷 / 1-3期

关键词：

D O I：

10.1016/0924-4247(91)87028-2

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

5,10,15,20-meso-tetra(p-sulfonatophenyl)-porphyrin is a highly sensitive indicator for the determination of Cd(II) ions in alkaline solutions. After immobilizing this dye in a poly(vinychloride) membrane, its application as a chromoionophore in combination with tridodecylmethylammonium-chloride as co-ionophore is investigated. The response time of this sensor is 20 min after contact with Cd(II) solutions and is reversible. The detection limit is 1.9 x 10(-5) mol/l (2.1 mg/l).

引用

页码：439 / 441

页数：3