RT Journal Article SR Electronic T1 Quantitative determination of haemoglobin A2 using paper electrophoresis JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 164 OP 166 DO 10.1136/jcp.14.2.164 VO 14 IS 2 A1 Ibbotson, R. N. A1 Crompton, B. A. YR 1961 UL http://jcp.bmj.com/content/14/2/164.abstract AB A quantitative paper electrophoresis method for the separation of haemoglobins A and A2 is described. The possible sources of error and the accuracy of the method have been investigated. The normal range for haemoglobin A2 by this method is 1·3% to 4·3% of the total haemoglobin concentration. Good clinical correlation has so far been obtained.