A comparison of Single Radial Immunodiffusion and formylated rocket immunoelectrophoresis for routine immunoglobulin measurement.

The technique of formylated rocket immunoelectrophoresis for the measurement of serum immunoglobulins has recently been developed. Advantages have been claimed for this technique when compared to the Single Radial Immunodiffusion technique (SRID). Our results indicate that SRID has advantages in reproducibility over the formylated rocket technique and of the two is the method of choice for routine immunoglobulin measurements.