Selectivity coefficients for ion-selective electrodes: Recommended methods for reporting KA,Bpot values (Technical Report)

1995 ◽  
Vol 67 (3) ◽  
pp. 507-518 ◽  
Author(s):  
Y. Umezawa ◽  
K. Umezawa ◽  
H. Sato
Keyword(s):  
Ion Selective Electrodes ◽  
Selectivity Coefficients ◽  
Technical Report

Potentiometric selectivity coefficients of ion-selective electrodes. Part II. Inorganic anions (IUPAC Technical Report)

2002 ◽  
Vol 74 (6) ◽  
pp. 923-994 ◽  
Author(s):  
Yoshio Umezawa ◽  
Kayoko Umezawa ◽  
Philippe Bühlmann ◽  
Naoko Hamada ◽  
Hiroshi Aoki ◽  
...  
Keyword(s):  
Inorganic Anions ◽  
Ion Selective Electrodes ◽  
Chemical Compositions ◽  
Selectivity Coefficients ◽  
Potentiometric Selectivity ◽  
Technical Report ◽  
Linear Concentration

Potentiometric selectivity coefficients, KA,Bpot have been collected for ionophore-based ion-selective electrodes (ISEs) for inorganic anions reported during 1988-1998. In addition to the actual numerical values of KA,Bpot together with the methods and conditions for their determination, response slopes, linear concentration (activity) ranges, chemical compositions, and ionophore structures for the ISE membranes are tabulated.

Potentiometric Selectivity Coefficients of Ion-Selective Electrodes. Part I. Inorganic Cations (Technical Report)

2000 ◽  
Vol 72 (10) ◽  
pp. 1851-2082 ◽  
Author(s):  
Yoshio Umezawa ◽  
Philippe Bühlmann ◽  
Kayoko Umezawa ◽  
Koji Tohda ◽  
Shigeru Amemiya
Keyword(s):  
Ion Selective Electrodes ◽  
Chemical Compositions ◽  
Selectivity Coefficients ◽  
Inorganic Cations ◽  
Potentiometric Selectivity ◽  
Technical Report ◽  
Linear Concentration

Potentiometric selectivity coefficients have been collected for ionophore-based ion-selective electrodes (ISEs) for inorganic cations reported from 1988-1997. In addition to numerical values of K(A,B)pot together with the methods and conditions for their determination, response slopes, linear concentration ranges, chemical compositions, and ionophores structures for the ISE membranes are tabulated.

Potentiometric coefficients of ion-selective electrodes. Part III. Organic ions (IUPAC Technical Report)

2002 ◽  
Vol 74 (6) ◽  
pp. 995-1099 ◽  
Author(s):  
Yoshio Umezawa ◽  
Phillipe Buhlmann ◽  
Kayoko Umezawa ◽  
Naoko Hamada
Keyword(s):  
Ion Selective Electrodes ◽  
Chemical Compositions ◽  
Selectivity Coefficients ◽  
Organic Ions ◽  
Potentiometric Selectivity ◽  
Technical Report

Potentiometric selectivity coefficients, KA,Bpot, have been collected for ionophore-based ion-selective electrodes (ISEs) for organic ions reported during 1988-1998. In addition to the actual numerical values of KA,Bpot together with the methods and conditions for their determination, response slopes, linear ranges, chemical compositions, and ionophore structures for the ISE membranes are tabulated.

Performance evaluation criteria for preparation and measurement of macro- and microfabricated ion-selective electrodes (IUPAC Technical Report)

2008 ◽  
Vol 80 (1) ◽  
pp. 85-104 ◽  
Author(s):  
Ernö Lindner ◽  
Yoshio Umezawa
Keyword(s):  
Performance Evaluation ◽  
State Of The Art ◽  
Evaluation Criteria ◽  
The State ◽  
Ion Selective Electrodes ◽  
Selectivity Coefficients ◽  
Technical Report ◽  
Theoretical Developments

Over the last 30 years, IUPAC published several documents with the goal of achieving standardized nomenclature and methodology for potentiometric ion-selective electrodes (ISEs). The ISE vocabulary was formulated, measurement protocols were suggested, and the selectivity coefficients were compiled. However, in light of new discoveries and experimental possibilities in the field of ISEs, some of the IUPAC recommendations have become outdated. The goal of this technical report is to direct attention to ISE practices and the striking need for updated or refined IUPAC recommendations which are consistent with the state of the art of using macro- and microfabricated planar microelectrodes. Some of these ISE practices have never been addressed by IUPAC but have gained importance with the technological and theoretical developments of recent years. In spite of its recognized importance, a generally acceptable revision of the current IUPAC recommendations is far beyond the scope of this work.

Cu(II) Ion-Selective Electrodes Based on Cu(II) Complex with Cyclized Salophen

2003 ◽  
Vol 58 (7) ◽  
pp. 658-662 ◽  
Author(s):  
Manal R. Al-Saraj ◽  
Salman M. Saadeh ◽  
Monzir S. Abdel-Latif
Keyword(s):  
Aqueous Solutions ◽  
Ion Selective Electrodes ◽  
Similar Response ◽  
Membrane Composition ◽  
Experimental Conditions ◽  
Selectivity Coefficients ◽  
Potentiometric Selectivity ◽  
Coated Disc ◽  
Coated Wire

Several versions of Cu(II) ion selective electrodes (ISE), based on cyclized N,N'-bis(salicylidene)-o-phenylenediamine (salophen) complexes with Cu(II), were fabricated for determination of Cu(II) in aqueous solutions. The response of the ISE was optimized by variation of membrane composition and evaluation of various experimental conditions. Near Nernstian slopes (~ 28-32 mV/decade) were obtained for some preparations. The linear range of the ISE ranged from 5 × 10-5 to 1 × 10-2M Cu(II). Coated-wire and coated disc ISE resulted practically in a similar response as screen printed electrodes (SPE). The potentiometric selectivity coefficients (Kij) for all electrodes were determined for Na+, NH4+, Ca2+, Mg2+, Ni2+, Pb2+, Zn2+, Cd2+, Co2+, Fe3+, Hg2+, CO32-, H2PO4-, HPO42-, SO42-, CH3COO-, Br-, I-, NO3-, and SCN-. The selectivity coefficients were in the range from 10-2 to 10-3 for all ions tested except Hg2+, I-, and to less extent Fe3+. Fabricated ISE using the Cu(II)-salophen complex are reliable and stable.

Side effects in measurements of selectivity coefficients of solid state ion selective electrodes

1988 ◽  
Vol 96 (1-6) ◽  
pp. 119-129 ◽  
Author(s):  
Adam Hulanicki ◽  
Tomasz Sokalski ◽  
Andrzej Lewenstam
Keyword(s):  
Solid State ◽  
Side Effects ◽  
Ion Selective Electrodes ◽  
Selectivity Coefficients

Potentiometric Selectivity Coefficients of Ion-Selective Electrodes Part I. Inorganic Cations

2016 ◽  
Author(s):  
Yoshio Umezawa ◽  
Philippe Bühlmann ◽  
Kayoko Umezawa ◽  
Koji Tohda ◽  
Shigeru Amemiya
Keyword(s):  
Ion Selective Electrodes ◽  
Selectivity Coefficients ◽  
Inorganic Cations ◽  
Potentiometric Selectivity
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