![Highly thiocyanate-selective membrane electrodes based on the N,N'-bis-(benzaldehyde)-glycine copper(II) complex as a neutral carrier [An article from: Desalination]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR5B3C.jpg)
Highly thiocyanate-selective membrane electrodes based on the N,N'-bis-(benzaldehyde)-glycine copper(II) complex as a neutral carrier [An article from: Desalination]
Description
This digital document is a journal article from Desalination, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Some novel PVC membrane electrodes based on N,N'-bis-(benzaldehyde)-glycine metallic complexes of Cu(II), Ni(II), Zn(II) and Co(II) as neutral carriers are described. The results showed that the electrode based on the N,N'-bis-(benzaldehyde)-glycine copper(II) complex [Cu(II)-BBAG] had a near-Nernstian response to the thiocyanate ion ranging from 1.0x10^-^1 to 9.0x10^-^7 M in a phosphate buffer solution of pH 4.0 with a detection limit of 7.0x10^-^7 M and a slope of -57.6 mV/decade at 25^oC. The electrode displays an anti-Hofmeister selectivity sequence in the following order: SCN^->ClO^-"4>Sal^->I^->Br^->NO^-"2>NO^-"3>SO^2^-"3>SO^2^-"4>Cl^->H"2PO The response mechanism is discussed in view of both AC impedance and UV spectroscopy techniques. The [Cu(II)-BBAG]-based electrode was successfully applied to the determination of the thiocyanate ion in wastewater and human saliva.
Description:
Some novel PVC membrane electrodes based on N,N'-bis-(benzaldehyde)-glycine metallic complexes of Cu(II), Ni(II), Zn(II) and Co(II) as neutral carriers are described. The results showed that the electrode based on the N,N'-bis-(benzaldehyde)-glycine copper(II) complex [Cu(II)-BBAG] had a near-Nernstian response to the thiocyanate ion ranging from 1.0x10^-^1 to 9.0x10^-^7 M in a phosphate buffer solution of pH 4.0 with a detection limit of 7.0x10^-^7 M and a slope of -57.6 mV/decade at 25^oC. The electrode displays an anti-Hofmeister selectivity sequence in the following order: SCN^->ClO^-"4>Sal^->I^->Br^->NO^-"2>NO^-"3>SO^2^-"3>SO^2^-"4>Cl^->H"2PO The response mechanism is discussed in view of both AC impedance and UV spectroscopy techniques. The [Cu(II)-BBAG]-based electrode was successfully applied to the determination of the thiocyanate ion in wastewater and human saliva.
