ISOGEOCHEM Archives

Stable Isotope Geochemistry

ISOGEOCHEM@LIST.UVM.EDU

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Received:
from pop.tamu.edu (pop.tamu.edu [128.194.103.4]) by list.uvm.edu (AIX4.2/UCB 8.7/8.7) with SMTP id JAA54996 for <[log in to unmask]>; Mon, 31 Mar 1997 09:56:47 -0500 (EST) from geopsun.tamu.edu (GEOPSUN.TAMU.EDU [128.194.195.16]) by pop.tamu.edu (8.6.9/8.6.9) with SMTP id IAA27425 for <[log in to unmask]>; Mon, 31 Mar 1997 08:58:09 -0600 from [128.194.195.199] (geol-101lab-05.tamu.edu) by geopsun.tamu.edu (4.1/SMI-4.1) id AA10025; Mon, 31 Mar 97 08:58:21 CST
Content-Type:
text/plain; charset="us-ascii"
TO:
Date:
Mon, 31 Mar 1997 08:59:08 -0600
Subject:
From:
[log in to unmask] (Ethan L. Grossman)
Mime-Version:
1.0
X-Sender:
Message-Id:
<v01530500af65800e981b@[128.194.195.199]>
Parts/Attachments:
text/plain (33 lines)
TC:

Try: Hassan, A.A., 1982, Methodologies for extraction of dissolved
inorganic carbon for stable carbon isotope studies: evaluation and
alternatives. U.S.G.S. Water Resources Investigations, 82-6.  Also, there
has been some Isogeochem discussion on this.  Researchers seem to favor
acid-stripping from water over precipitation of carbonate precipitate
(including me), but the latter is commonly used.  See Hassan's study.

Ethan

**********

>Dear Isogeochemers,
>I was wondering if I could obtain a survey of the relative merits of sampling
>ground water for the del-13C of inorganic carbon with either of these two
>
>methods:
>1.  Collecting water poisoned by HgCl2 and then acidified by phosphoric acid in
>the lab.
>2.  Collecting water with BaCl2 or SrCl2 allowing BaCO3 or SrCO3 to form.
>Filtering the precipitate and then acidifying with phosphoric acid in the lab.
>
>Are there any publications that compare the accuracies of each approach?
>Any advice would be greatly appreciated.  Thanks, T.C. Onstott

Department of Geology & Geophysics                  (409) 845-0637
Texas A&M University                            fax (409) 845-6162
College Station, TX 77843-3115




ATOM RSS1 RSS2