P. Podhajecky et al., AUTOMATIC COULOMETRIC TITRATOR WITH OPTICAL INDICATION FOR ACIDITY NUMBER DETERMINATION, Electroanalysis, 6(7), 1994, pp. 606-608
The automatic coulometric titrator with a colorimetric indication is d
escribed, and its use is demonstrated on acidity number (AN) determina
tions. Compared to the standard volumetric procedure, the automated pr
ocedure yields more accurate results at lower sample and reagents cons
umption.