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. Author manuscript; available in PMC: 2009 Nov 2.
Published in final edited form as: Anal Biochem. 2007 Nov 4;374(2):366–370. doi: 10.1016/j.ab.2007.10.043

Fig. 5.

Fig. 5

Pulstrode responses of DNNS-TDDA protamine-sensitive membrane electrode in 0.1 M sodium chloride and 10 mM Tris-HCl buffer toward 60 U·mL−1 trypsin and different concentrations of protamine (a) 8 mg·L−1, (b) 10 mg·L−1, (c) 15 mg·L−1, and (d) 20 mg·L−1.