Jools,

If you want any pointers on how to get the benefits of a NIST SRM without the 
cost, you might want to have a look at: Acta Cryst. (2011). A67,  357-367

Regards,

Jim


James P. Cline
Materials Measurement Science Division
National Institute of Standards and Technology
100 Bureau Dr. stop 8520 [ B113 / Bldg 217 ]
Gaithersburg, MD 20899-8523    USA
jcl...@nist.gov<mailto:jcl...@nist.gov>
(301) 975 5793
FAX (301) 975 5334

From: rietveld_l-requ...@ill.fr [mailto:rietveld_l-requ...@ill.fr] On Behalf Of 
David L. Bish
Sent: Monday, October 12, 2015 8:32 AM
To: rietveld_l@ill.fr
Subject: Re: Quantitative internal standards

Hi Jools,

In the past we've obtained alumina for use as an internal standard from this 
company:

Metallurgical Supply Co.
P.O. Box 12493
Houston, TX  77017
713-645-6631
http://metlabsupply.com/abrasive-powders/high-purity-alumina-powders

You can check your material against an NIST standard before use, and evaluate 
it for purity. Stay away from the very fine particle sizes, as they are not 
pure alpha-alumina.

Best wishes,

Dave

On 10/8/2015 6:58 PM, Matthew Rowles wrote:

Hi Jools

As for a source, I can't remember now, but the guys at CSIRO in Melbourne just 
got a few kilos of a nice alumina. They might respond to this, or I might find 
the emails first.

As for NIST, what I've done in the past is to calibrate my material against the 
NIST material by the external standard approach. I get most of the benefit of 
the standard without much of the cost.

Matthew
On 9 Oct 2015 1:30 am, "Julian Richard Tolchard" 
<julianrichard.tolch...@sintef.no<mailto:julianrichard.tolch...@sintef.no>> 
wrote:
Hi all,

I've been asked to do some quantification on some samples which are 
predominantly silica, which means a reasonable amorphous component is pretty 
much inevitable. I'm thus looking for a suitable internal standard for spiking, 
but as this could be quite a big project moving forwards i don't think the NIST 
standards are financially viable. Does anyone have any good sources for spikes 
to use with such light materials?

Regards,


jools


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--

David L. Bish

Department of Geological Sciences

Indiana University

1001 E. 10th St.

Bloomington, IN 47405

812-855-2039
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