Hello all,

We have a Finnigan 252 with a NC 2500 EA and a CONFLO
II device.  The He dilution when running CO2 is fairly
high for our samples.  My question is what sort of
precision/error can be expected in the weight percent
of carbon?  My nitrogen weight percent numbers are
always extremely close while the carbon values can
vary a bit (actual weight percent = 70.56 while
measured values can vary by as much as 2-3 std).  Any
advice or input is greatly appreciated...

Thanks,

Dave Morello

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