ELISA TNFa - no signals on my samples but there were signals for my standard wells. What should I check for my protocol?

Hello everyone, I'm now working on ELISA. I'm testing TNFa on the serum of pigs. The results are pretty inconsistent. I did the 1st plate and everything came out well. But I'm now running a second...

03 May 2023 4,089 4 View