How much variance should I expect?

Q-Plex™ multiplex ELISA assays are validated to have < 15% CV between kit lots by our in-house Quality Assurance team. More information about our stringent limits on precision, specificity, recovery, and linearity can be found in this article detailing how we validate our assays: https://www.quansysbio.com/support/how-are-q-plex-arrays-validated/