On wide diameter Elementar tubes we use a length of 1/4" SS tube (handle on one end made of Duct tape) to 'grind' out the CuO, you might need some wire with hook-end to remove glass wool. Same should work on narrower tubes but you might want workshop to make up a small serrated grinding-end to the SST.
Then an overnight soak in 0.5% HCl and good as new. We reuse constantly.
Dr Ian Boomer
Course Director MSc Appl. & Pet. Micropalaeontology
School of Geography, Earth & Environmental Sciences,
University of Birmingham,
Edgbaston, Birmingham B15 2TT
Tel: 0121 4145536 (office) 0121 4142866 (lab)
From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf Of GROCKE D.R.
Sent: 15 January 2016 12:13
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?