Electrode sensitive to sulfa drugs.
An electrode sensitive to sulfa drugs was constructed by using the iron(II)-bathophenanthroline chelate embedded in a liquid membrane. Rapid and Nernstian responses were exhibited against solutions of sulfamerazine and sulfisomidine ranging between 10(-3) and 10(-1) M in concentration. High selectivity was observed in the presence of urea, glycine, aminopyrine, or p-amino-benzoic acid. These chemicals are known to interfere in the usual colorimetric analysis of sulfa drugs.
Electrode sensitive to sulfa drugs. An electrode sensitive to sulfa drugs was constructed by using the iron(II)-bathophenanthroline chelate embedded in a liquid membrane. Rapid and Nernstian responses were exhibited against solutions of sulfamerazine and sulfisomidine ranging between 10(-3) and 10(-1) M in concentration. High selectivity was observed in the presence of urea, glycine, aminopyrine, or p-amino-benzoic acid. These chemicals are known to interfere in the usual colorimetric analysis of sulfa drugs.