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Sensitivity variation by changing carrier gas
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No : 9045
Date of Issue : 2022/10/20 08:22
Last Updated : 2022/10/20 08:40
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Sensitivity variation by changing carrier gas
How much will the sensitivity change if the carrier gas is switched from helium?
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GC/GCMS Helium Shortage
Answer
[GC]
Although the sensitivity depends on the detector, some can achieve comparable sensitivity with helium carriers and hydrogen or nitrogen carriers. Also check out the application news below.
https://www.shimadzu.com/an/service-support/technical-support/technical-information/gas-chromatography/top/index.html
[GCMS]
Depending on the compound, the sensitivity decreases about 1/5 for hydrogen carriers and 1/10 for nitrogen carriers.