RE: Alternative suppplier for QPA standards

Dear All, Thank you very much for your answers. It helped me a lot! Best Regards, Jan From: rietveld_l-requ...@ill.fr On Behalf Of Matthew Rowles Sent: Friday, August 16, 2024 4:28 AM To: Jan Rohlíček Cc: rietveld_l@ill.fr Subject: Re: Alternative suppplier for QPA standards Hi Jan

Re: Alternative suppplier for QPA standards

Hi Jan Independent Minerals Standards have a corundum certified at 99.04% crystalline. It was done* via external standard calibration by reference to NIST 676a. https://imstandards.com.au/independent-mineral-standards-releases-ims135/ *I was involved in the XRD measurements that were used in

Alternative suppplier for QPA standards

Dear All, SRM 676 (corundum for QPA) at NIST has been out of stock for some time. Is there an alternative supplier for some similar standard(s)? Thank you in advance, Jan Rohlicek Institute of Physics CAS Cukrovarnicka 10/112 162 00 Prague 6 Tel: (+420) 220 318 484 Email: rohli...@fzu.cz

RE: Quantitative internal standards

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

Re: Quantitative internal standards

y 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 wit

FW: Quantitative internal standards

Resending since it didn't seem to go out the first time. From: Nicolich, Jeffrey Sent: Thursday, October 08, 2015 6:30 PM To: 'Julian Richard Tolchard'; rietveld_l@ill.fr Subject: RE: Quantitative internal standards Julian, First, the best idea would be to use a NIST standard

Quantitative internal standards

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 ++ Please do NOT attach files to the whole list Send commands to

Re: Internal standards

rutile to use as internal standards except NIST? The SRM standards are very expensive for very little quantity. Thank you, Maria Chrysochoou Assistant Professor Department of Civil and Environmental Engineering University of Connecticut Storrs CT 06269 E-Mail: [EMAIL PROTECTED] Tel.

Internal standards

Does anyone have a suggestion for a vendor that has crystalline corundum, zincite and/or rutile to use as internal standards except NIST? The SRM standards are very expensive for very little quantity. Thank you, Maria Chrysochoou Assistant Professor Department of Civil and Environmental

standards

Dear All Can anyone suggest a good, recent review of standards (reference materials) used in X-ray diffraction. Thanks in advance Keith D. Rogers