Gas Chromatography inlet type and flow rate

Time:2019/02/07 Pageviews:7 Share:

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The inlet type and injection technique are typically related to the form in which the sample is present (liquid, gaseous, adsorbed, solid) and the presence or absence of a solvent that requires gasification 2ml GC vials.

2ml GC vials
If the sample is well dispersed and known in nature, it can be injected directly through the cold on-column inlet; if some solvent needs to be removed by evaporation, use a split/splitless inlet (usually with a syringe); gas sample (eg from a cylinder) is usually injected with a gas valve injector. The adsorbed sample (eg on a sorbent tube) can be desorbed by an external (online or off-line) desorption unit (eg capture-purge system) or in a split/splitless sampler (using solid phase microextraction) .2ml GC vials

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