FIG. 2.

Analytical HPLC profile for peptide [K]₁₈S₁₂, using a low rate of 1 ml/min and a linear, binary gradient (30 ml) between 100% buffer A(0.1% aqueous trifluoroacetic acid) and 60% buffer B(0.1% trifluoroacetic acid-acetonitrile). The peptide(1 mg) was eluted at 38.2% buffer B and was monitored at a wavelength of 214 nm.