I want to choose between head space collection and aeration extract for my study, but I could not find the difference between them. Are these phrases synonymous?
As you may know headspace (HS) volatiles can be collected by two ways 1. static HS collection 2. dynamic HS collection.
In static HS collection SPME or gas tight syringe injection is common way of volatiles collection from HS of a sample.
In case of dynamic collection, a stream of gas (mostly air) passed over a sample and HS volatiles are collected on an adsorbent packed in a tube.
In all the cases HS volatiles are collected. the second method (dynamic collection) can be called as aeration collection or extract as this in this air or some other gas use to push volatiles from the HS of a sample.
for reliable quantitative analysis, dynamic HS collection should be used if it work.
As you may know headspace (HS) volatiles can be collected by two ways 1. static HS collection 2. dynamic HS collection.
In static HS collection SPME or gas tight syringe injection is common way of volatiles collection from HS of a sample.
In case of dynamic collection, a stream of gas (mostly air) passed over a sample and HS volatiles are collected on an adsorbent packed in a tube.
In all the cases HS volatiles are collected. the second method (dynamic collection) can be called as aeration collection or extract as this in this air or some other gas use to push volatiles from the HS of a sample.
for reliable quantitative analysis, dynamic HS collection should be used if it work.
Headspace analysis is an assamly with GC-MS analysis in which we can directly detect the volatile compound concentration of compounds without processing. We can estimates volatile compounds in flowers, leaves, flavour matrices.....etc using various fibres manufacture by SUPELCO. These fibres of variour polarity depends upon compounds of interest.
for me it is the same! you have a similar technique calls ITEX for in tube extraction, that replace fibre or tube by "syringe" coated with adsorption phase like PDMS. It works very well for VOCs analysis