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Mon, 12 Apr 1999 14:30:22 +1000 |
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Hi everyone,
I'm looking at the extraction of humic and humin acids in sandy soils from
Fraser Island (Queensland) for their % content, C/N ratio and d13C. I am
aware the extraction technique initially digests the sample in HCl.
However, the samples I am looking at come from a sandy soil. Is it alright
to use HF following the HCl to digest as much of the silica as possible, or
will this alter the % content, C/N ratio and d13C?
Many thanks in advance.
Chris Turney
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Dr. Chris S.M. Turney
Research School of Earth Sciences
The Australian National University
Canberra, ACT 0200
Australia
Fax: 02 6249 0738 Tel: (wk) 02 6249 3412
(+61 2 6249 3412)
(+61 2 6249 0738)
E-mail: [log in to unmask]
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