Presently we look to buy a Karl Fischer coulometric titrator to quantified the water on our new API (few ppm at few pourcent). I found two instruments at this time, Mettler (DL39) and Aquacounter (AQ-2100 or AQ-300) from Hiranuma. I would like to have a feed back on these two instruments and also a can take suggestions for orther equipments.

We used an Aquastar C2000 at my previous position and found it easy to operate coulemetric titrations. We used an Aquastar V5000 for volumetric titrations. I had no trouble using or training others in the use of these items. The online Sima-Aldrich site was helpful when titrating unusual matrixes.