"incubating" hexane

[WK]

Hi all,
I have a method paper which involves "incubating" a capped vial of 1ml hexane (HFBI 50ul deriv. and 200ppb dichlorobenzene IS) at 70degC for 1/2hr? I would have thought this would be performed in a water bath? Surely not in an oven!
Any other ways I could do this?
Regards
WK

[chromatographer1]

What difference would a water bath at 70°C be from a dry oven at 70°C?

As long as the capped vial stays sealed and the vial is able to withstand the pressure generated and the temperature I don't see a difference.

Do you? What would be the difference?

best wishes,

Rod

[WK]

Thanks C1,
I would be concerned if the vial failed and it was not a flameproof electrics oven. Hexane is good for the method (polarity & splitless injection) - but 70degc is the bpt of hexane.

[chromatographer1]

I would be concerned too.

But there are dry heating blocks with controlled temperatures, placed in a hood, and there are such things as ampules that can be sealed in an inert atmosphere, heated, and then opened for analysis.

There are ways to do this. But I would not heat the vial under an open flame, or do anything that smacks of foolishness.

I know you wouldn't either.

best wishes,

Rod

[AICMM]

WK,

We used to use an electric skillet filled with play sand in a hood to do micro KD's. You will want to make sure the caps are on tight enough that they do not pop!.

Best regards.

[WK]

I was watching a TV programme on the BBC the other day and they demonstrated why Nobel used sand dunes between his production huts for nitroglycerine manufacture!