Strontium-Selective Membrane Electrodes Based on Some Recently Synthesized Benzo-Substituted Macrocyclic Diamides

Eight different recently synthesized macrocyclic diamides were studied to characterize their abilities as strontium ion carriers in PVC membrane electrodes. The electrode based on 1,13-diaza-2,3;11,12-dibenzo-4,7,10-trioxacyclopentadecane-14,15-dione exhibits a Nernstian response for Sr2+ ions over...

Full description

Saved in:
Bibliographic Details
Published in:Analytical chemistry (Washington) 1999-11, Vol.71 (21), p.4938-4943
Main Authors: Shamsipur, Mojtaba, Rouhani, Shohre, Sharghi, Hashem, Ganjali, Mohammad Reza, Eshghi, Hossein
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Electrochemistry
Electrodes: preparations and properties
Exact sciences and technology
General and physical chemistry
General, instrumentation
Ion selective electrodes
Ions
Membranes
Polyvinyl chloride
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Eight different recently synthesized macrocyclic diamides were studied to characterize their abilities as strontium ion carriers in PVC membrane electrodes. The electrode based on 1,13-diaza-2,3;11,12-dibenzo-4,7,10-trioxacyclopentadecane-14,15-dione exhibits a Nernstian response for Sr2+ ions over a wide concentration range (1.0 × 10-1−3.2 × 10-5 M) with a limit of detection of 8.0 × 10-6 M (0.7 ppm). The response time of the sensor is ∼10 s, and the membrane can be used for more than three months without observing any deviation. The electrode revealed comparatively good selectivities with respect to many alkali, alkaline earth, and transition metal ions. It was used as an indicator electrode in potentiometric titration of carbonate ions with a strontium ion solution.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac990167e