Hi Ken
I concur with Geoff. The 59 Co line should be much narrower. But to actually
see the natural line with there can be no temperature gradient.
You can again try here if you can narrow the line by adding to Z1. Based on
this data I would estimate that you are looking at about 100 - 150 units.
My suspicion is primarily airflow. Can you hook up a flow meter to the VT
gas line just where it goes into the probe. You should have a flow of over
500l/h (0.3 CFM)
Does the 59 Co line narrow if you increase the gasflow.
Regards
Clemens
On 1/11/2024 4:00 PM, Akien, Geoffrey wrote:
Hi Ken,
That...is not a normal-looking 59Co spectrum. Temperature sensitivity is on
the order of 1.4-1.5 ppm/K (literature reports vary). Your spectrum is 2 ppm o
wide so yours is a temperature gradient of 1.5 K (!?). That would certainly
explain why you're having problems with aqueous samples. As for why the gradient
is so high is another matter.
Geoff
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Clemens Anklin Ph.D. Vice President
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Received on Thu Jan 11 2024 - 18:25:25 MST