this is for XRD analysis of clay in oriented mounts prepared by decantation and filtration.
Ethylene glycol can be used to expand swelling clays (e.g., smectites, montmorillonite, nontronite and beidellite), some mixed-layer clays, and vermiculite as an aid to mineral identification. There are two ethylene glycol treatment methods: Vapor treatment and Quick treatment.
Vapor Treatment
The advantage of the vapor treatment is less disturbance of the sample and less amorphous scattering of X-rays by excess liquid than in the quick method. Note: Glyconation may only last for 4 h after the samples are removed from the glyconation container.
1.Find the “Glyconator” container stored in the ICP prep sink cupboard.
2.Pour ethylene glycol to a depth of ~1 cm in the bottom of the container.
3.Place the samples to be glycolnated onto the shelf
4.Place container (glyconator) in oven at 60°–70° overnight.
5.Keep samples in glyconator until ready to analyze.
Quick Treatment
1.Using a glass rod or eye dropper, apply a drop of ethylene glycol directly to the surface of the sample mount.
2.Samples are ready to be analyzed as soon as the glycol is uniformly absorbed on the sample mount.
Note: Excess ethylene glycol may be gently mopped up with a lab tissue.
yes I know all of this. I am asking if I can use the glycolated mount in the heat treatment step
In case you are looking for the collapsing behaviour of the 1.4 nm minerals either in their discreet or their inter stratified forms then please use K-saturated sample for heating at 110, 300, and 550 degree C.
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