Fig. 3From: A novel protein chip for simultaneous detection of antibodies against four epidemic swine viruses in ChinaOptimal print buffer. The protein samples of CSFV-E2 were diluted with 40%vol or commercial print buffer, or 50%vol homemade print buffer to the optimal concentration and spotted on epoxy chip. 1, 50%vol commercial print buffer; 2, 50%vol homemade print buffer; 3, 40%vol commercial print buffer; 4, Negative control of BSABack to article page