For the Mouse IL-6 ELISA Kit PicoKine (EK0411), the sample diluent buffer, ABC diluent buffer and antibody diluent buffer can be used interchangeably between the kit.
However, the sample diluent buffer can only be used to dilute standards and samples, ABC diluent buffer is used to dilute ABC only and antibody diluent buffer is used to dilute antibody only.