My colleague and I are working with fertilizers, and we are trying to continuously measure the concentration of urea in water (In situ concentration as function of time). There are two condition that we're considering, first is using distilled water, and second is with the present of some salt (i.e., KCl (0.1 mM-10mM)). Our expected concentration is within 0.1-100 mM
Is it possible to use pH meter, conductometer, or something similar? How would that even work?
Have there been anyone who've done this before?