Polymer-Mediated Extraction of Porphirinato Chelates for a Spectrophotometric Approach to Sub-ppt Level Detection of Metal Ions
- 1 February 1999
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 28 (2) , 151-152
- https://doi.org/10.1246/cl.1999.151
Abstract
Negatively charged copper(II) and zinc(II) chelates with 5,10,15,20-tetrakis(4-carboxyphenyl)-21H,23H-porphine were incorporated into the precipitates formed from the aqueous solutions of thermo-responsive polymer; poly(N-isopropylacrylamide). In the presence of an appropriate kind and amount of quaternary ammonium ion, the recovery of the chelate was quantitatively. Sub-ppt level zinc(II) in water by the photometric detection in HPLC was successfully achieved, because of the highly efficient concentration.This publication has 9 references indexed in Scilit:
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