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͡ҫػóѺҹԨзͧ
Dated: 2 Jun 2006
͡еԴ駡ҫѺҹͧԨդӤѭҧ  ö觼ŵͼŢͧе鹷عͧͧԺѵԡ·

Many analytical techniques require the use of specialty gases (e.g., He, H2, N2, Ar, O2,  etc.) and/or thier mixtures. The purpuse of gases for an nalytical procedue depaends on the thechnique, and it is a crucial part of the procedure. The quality of the gas used therefore signiicantsly impacts the potential results. The Laboratory manager must understand the effects of gas purity on the quality of the results obtained. Most industrial gas companies offer a range of gas purity levels. Frequently, the effect of the gas quality on the obtainable results is not weel. An order may be placed without reference to the consequences of the purity on the analytical.
The papaer describes the relationship between the gas purity and the obtainable detection limit for the detectors commonly used in gas chromatography.

 
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