Amperometric method for the determination of propham
An amperometric diazotisation titration for the determination of active material in technical propham has been investigated. Advantages in comparison with the official CIPAC method are the smaller amount of sample required, the reduced time of hydrolysis and analysis, automation of titration, more accurate evaluation and better reproducibility because no extraction is necessary. The standard deviation was 0·52 compared with 1·04 obtained with the CIPAC method. In addition, the method has been tested successfully with other carbamates and their formulations.