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We have a patient with raised (6x the upper limit) urine normetanephrine. However, this patient had noradrenaline 5 days previous. The half-life of noradrenaline is very short (minutes)- but is...
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We have a set of previously thawed samples (one thaw and stored at -80oC) and have seen reference to avoiding freeze- thaw but have never found any data to support it. Thanks for your help
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We have samples stored from a large consorita project that requires intact proinsulin analysis, some samples have been stored for up to 2 years at minus 80 oC and we have a set of aliquots with...
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