A novel lutetium(III) PVC membrane sensor based on a new symmetric S–N Schiff's base for Lu(III) analysis in real sample

A lutetium pvc membrane sensor based on (2-oxo-1,2-diphenylethylidene)-n-phenylhydrazinecarbothioamide

“…4 Finally, and most importantly, the potentiometric selectivity coefficients of the sensor, which are supposed to describe the preference of the PHCT-based membrane electrode for the target ion in the presence of an interfering ion were determined through the matched potential method. [3][4][5][6] It is clear that the selectivity coefficients of the electrode for all ions were in the order of 6.2×10 -3 or smaller. In a separate experiment, interfering ions (B) are successively added to an identical reference (containing primary ion) solution until the measured potential matches to that obtained only with the primary ions.…”

“…Since there are some reports on lutetium sensors based on different ionophores [3][4][5][6] and also recent experience on the development of highly selective and sensitive PVC-membrane ISEs, [7][8][9][10][11][12][13][14][15][16][17][18][19][20] it was decided to assess the possibility of constructing a novel Lu 3+ sensor by testing (2-oxo-1,2-diphenylethylidene)-N--phenylhydrazinecarbothioamide (PHCT) (Fig. 1) as a neutral ion carrier.…”

A Ho(III) potentiometric polymeric membrane sensor based on a new four dentate neutral ion carrier

“…A Pyrex tube (3-5 mm i.d.) was dipped into the mixture for about 5 s so that a transparent membrane of about 0.3 mm thickness is formed [23][24][25][26][27][28][29][30]. The tube was then pulled out from the mixture and kept at room temperature for about 12 h. The tube was then filled with internal filling solution (1.0×10 −3 mol L −1 of HoCl 3 ).…”

Dysprosium selective potentiometric membrane sensor

“…We have developed some ISEs for the potentiometric determination of some ionic species [14][15][16][17][18][19][20][21][22], where polymeric membranes were prepared with increasingly selective ionophores, sensing analyte selectively.…”