Those of you who seem to be able to tap or dig your copper are
you packing it in the first place? That is, are you simply dumping it in
and maybe tapping with your finger or are you using a vortex to really get
the copper well seated?


On Fri, Jan 15, 2016 at 7:40 AM, Mihai Lefticariu <[log in to unmask]>

> Darren,
> You wait for the column to cool down, remove the quartz wool plugs, and
> start tapping the column gently on the side and top with a wood or better a
> soft rubber mallet. Flip it upside down and do the same. Repeat the process
> until the oxidized copper granules will start detaching nicely from the
> walls and the long oxidized plug breaks apart into smaller fragments. Keep
> tapping until the fragments get out of the quartz tube. I would not
> pull/drag the oxidized copper plug fragments inside the tube to avoid
> scratches. When the tube is empty wash it thoroughly with warm soapy water
> using a thick test tube brush. Rinse it thoroughly with trap water. Give it
> a final rinse with alcohol and DI water and leave to dry.  Cheers. Mihai
> Dr. Mihai Lefticariu
> IRMS Scientist
> Mass Spectrometry Facility
> Neckers 103
> Southern Illinois University Carbondale
> Carbondale IL 62901
> ________________________________________
> From: Stable Isotope Geochemistry <[log in to unmask]> on behalf of
> GROCKE D.R. <[log in to unmask]>
> Sent: Friday, January 15, 2016 6:12 AM
> To: [log in to unmask]
> Subject: [ISOGEOCHEM] Removing reduced copper
> just a quick question in the hope of saving costs:
> does anyone know an easy way to remove the oxidised copper from the quartz
> column; so that the quartz column can be re-used?
> cheers
> darren

Andrew Schauer
[log in to unmask]
* <>*