Has anyone noticed "odd" behaviour of IAEA-N3 (potassium nitrate) when
running it through the EA-IRMS? I have only used it a couple of times
and in both instances the standards at the end of the run were "off".
In the first instance the IAEA-N3 values a the end of the run were a
tad heavier than those at the start and in the other instance (after
sitting in the autosampler for >24 hr) much lighter. No problems
(i.e., strange drifts) for the USGS 40 in the same runs.
Before starting to run all sorts of tests to figure out what's going
on I thought I'd ask.
Bye for now,