RT Journal Article SR Electronic T1 Application of an improved system of electrophoresis in acrylamide gel to studies on the sera of different species JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 508 OP 511 DO 10.1136/jcp.25.6.508 VO 25 IS 6 A1 Hyslop, N. St. G. YR 1972 UL http://jcp.bmj.com/content/25/6/508.abstract AB Polyacrylamide gels constitute a generally better matrix for routine electrophoresis of serum proteins than other media commonly employed, but the immunoglobulin fractions of the largest size may not migrate into gels in which the acrylamide concentration exceeds 5%. To facilitate adequate separation, slabs containing a semi-solid layer were prepared from discontinuous gels consisting of 2 to 8% acrylamide. Serum samples were subjected to electrophoresis, under carefully controlled conditions at pH 9ยท0, by means of a pulsed constant power supply. The method provided a rapid, reproducible, and relatively simple technique for the study of human serum proteins, either by electrophoresis or by immunoelectrophoresis, and for differentiation of serum samples from various animal species.