Thu Oct 20, 2016 6:02 pm by sarahkj
Hi Mike,
You were correct. We use(d) lymphocyte separation medium and i think this is most likely the source. Have switched to ficoll-paque plus and added more washes. Thus far, seems to be ok. Still have some persistent iodine contamination (~30k DC in background) that i can't seem to get rid of but it is at a level that we can at least use the instrument again.
Thanks,
Sarah