Potentiometric Selectivity Coefficients of Ion-Selective Electrodes Part III. Organic Ions

2016 ◽  
Author(s):  
Yoshio Umezawa ◽  
Philippe Bühlmann ◽  
Kayoko Umezawa ◽  
Naoko Hamada
2002 ◽  
Vol 74 (6) ◽  
pp. 995-1099 ◽  
Author(s):  
Yoshio Umezawa ◽  
Phillipe Buhlmann ◽  
Kayoko Umezawa ◽  
Naoko Hamada

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.


2003 ◽  
Vol 58 (7) ◽  
pp. 658-662 ◽  
Author(s):  
Manal R. Al-Saraj ◽  
Salman M. Saadeh ◽  
Monzir S. Abdel-Latif

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.


2002 ◽  
Vol 74 (6) ◽  
pp. 923-994 ◽  
Author(s):  
Yoshio Umezawa ◽  
Kayoko Umezawa ◽  
Philippe Bühlmann ◽  
Naoko Hamada ◽  
Hiroshi Aoki ◽  
...  

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.


2016 ◽  
Author(s):  
Yoshio Umezawa ◽  
Philippe Bühlmann ◽  
Kayoko Umezawa ◽  
Koji Tohda ◽  
Shigeru Amemiya

2000 ◽  
Vol 72 (10) ◽  
pp. 1851-2082 ◽  
Author(s):  
Yoshio Umezawa ◽  
Philippe Bühlmann ◽  
Kayoko Umezawa ◽  
Koji Tohda ◽  
Shigeru Amemiya

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.


2016 ◽  
Author(s):  
Yoshio Umezawa ◽  
Kayoko Umezawa ◽  
Philippe Bühlmann ◽  
Naoko Hamada ◽  
Hiroshi Aoki ◽  
...  

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