With the FOCUSING option, the agarose gel electrophoresis systems are also equipped with a high-voltage module allowing for isoelectric focusing (IEF) testing to be performed.

Clin Lymphoma Myeloma. 2010;10(4):278-280.

Comparison of serum IFE with serum FLC in a large primary care and tertiary referral hospital showed that 50.7% of subjects with an M-protein demonstrated by IFE had normal κ/λ ratios. These ...