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A PVC Based Hematoporphyrin IX Membrane Potentiometric Sensor for Zinc(II)
Author(s) -
Jain Ajay K.,
Sondhi Sham M.,
Rajvanshi Shefali
Publication year - 2002
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200202)14:4<293::aid-elan293>3.0.co;2-y
Subject(s) - potentiometric titration , hematoporphyrin , zinc , alkali metal , chemistry , membrane , polyvinyl chloride , inorganic chemistry , metal ions in aqueous solution , potentiometric sensor , vinyl chloride , metal , ion , chloride , nuclear chemistry , analytical chemistry (journal) , chromatography , organic chemistry , polymer , biochemistry , copolymer , photodynamic therapy
Poly(vinyl chloride) based membrane of Hematoporphyrin IX exhibits good potentiometric response for Zn 2+ over a wide concentration range (5×10 −5 −1×10 −1 mol dm −3 ) with a slope of 28.6 mV per decade of Zn 2+ concentration.The response time of the sensor is as fast as 30 s and it has been used for a period of three months. It exhibits selective response towards Zn 2+ in comparision to alkali, alkaline earth, and heavy metal ions and functions satisfactorily in the pH range 2.0 to 5.5.