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Atomic Absorption
Posted: Thu Jun 17, 2010 12:07 pm
by cody84
Does anyone know if it's normal to go through 1 tank of Argon per week???? Have a Varian AA, using graphite furnace mostly and almost every day. Seems way off....
Just tired of switching the cylinders all the time hahaha
Posted: Thu Jun 17, 2010 11:43 pm
by Don_Hilton
While I can not comment on the usage rate of argon by AA, I can suggest you consider using a cylinder of liquid argon and putting a regulator on the gas outlet. I do this with a liquid nitrogen cylinder for high volume, clean nitrogen gas.
Posted: Sun Jun 20, 2010 5:50 am
by Bruce Hamilton
It's a long time since I used a Varian Graphite Furnace, but that usage sounds very high, esepacilly if it's only used intermittently, rather than 24/7.
I recall changing cylinders every month, but we only ran for few hours each day. From memory, the manual listed typical gas consumption flow rates.