Additional file 1 of Genotyping of 30 kinds of cutaneous human papillomaviruses by a multiplex microfluidic loop-mediated isothermal amplification and visual detection method

Additional file 1: Supplementary Figure 1. Sensitivity test of PCR. PCR reactions were performed on 6 kinds of HPV type plasmids (HPV1, HPV2, HPV3, HPV4, HPV27 and HPV 57) with universal HPV primers. (A) 108 copies/μl, (B) 107 copies/μl and (C) 106 copies/μl plasmid concentrations were selected for three PCR tests.