Fig. 4.
The reproducibility of pulstrode responses of DNNS-TDDA protamine-sensitive membrane electrode in 0.1 M sodium chloride and 10 mM Tris-HCl buffer toward 20 mg·L−1 protamine and 200 U·mL−1 trypsin.
The reproducibility of pulstrode responses of DNNS-TDDA protamine-sensitive membrane electrode in 0.1 M sodium chloride and 10 mM Tris-HCl buffer toward 20 mg·L−1 protamine and 200 U·mL−1 trypsin.