Additional results from the Hb variant study showed inference
of HbE and HbJ with the Tosoh G8 system. It should be noted,
however, that the problem of co-elution is not limited to
Tosoh G7 and G8 and that other CE-HPLC systems, such as
the Bio-Rad and Menarini/Arkray systems, are also subject
to Hb variant interference. In one study, the results of
298,276 samples tested over a 16-year period using the Bio-Rad
Variant Classic and Bio-Rad Variant II Systems are presented.