Dear colleagues, Happy Christmas one and all| On the most recent WEQAS EQAS distribution on a type 2 diabetic, the instrument means for HbA1C (DCCT corrected) were as follows. 8.3 for the 8140 6.8 for the 8160 and 7.75 for the G7 CE capillary electrophoresis yielded a result of 7.6 This low 8160 result was attributed to ageing of the sample We are looking at the 8160 and have found no effect of ageing on 3 patient samples (different levels) analysed over 8 days. Any advice? Many thanks. [log in to unmask] Sean Maguire, Biochemistry Lab, Mater Hospital, Dublin 7. ------ACB discussion List Information-------- This is an open discussion list for the academic and clinical community working in clinical biochemistry. Please note, archived messages are public and can be viewed via the internet. Views expressed are those of the individual and they are responsible for all message content. ACB Web Site http://www.acb.org.uk List Archives http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html List Instructions (How to leave etc.) http://www.jiscmail.ac.uk/