Hostname: page-component-68945f75b7-6q656 Total loading time: 0 Render date: 2024-09-03T17:20:13.227Z Has data issue: false hasContentIssue false
  • English
  • Français

A Low Cost Secondary Two Theta Standard for Powder Diffractometry

Published online by Cambridge University Press:  06 March 2019

David J. Stabb
David J. Stabb*
Affiliation:
Biological and Chemical Sciences Ballarat University College Ballarat, Australia
Get access

Abstract

Silicon powder, available as a Standard Reference Material, fulfills most of the requirements for a two theta standard. However, It has no diffraction lines at the low 2θ values characteristic of some species. Standard synthetic mica is available but expensive.

Experiments with a commercially available high silica zeolite have shown that it is a valuable secondary standard. It is non-toxic, stable, inexpensive and possesses a large (24 Å) unit cell. Peaks show clearly from 14 Å (6°2θ for Cu Kα).

An example is given of the use of this secondary standard in determining lattice parameters.

Type
VI. XRD Instrumentation, Techniques and Reference Materials
Information
Advances in X-Ray Analysis , Volume 35 , Issue A: First Pacific-International Congress on X-ray Analytical Methods (PICXAM). Fortieth Annual Conference on Applications of X-ray Analysis, August 7-16, 1991 , 1991 , pp. 359 - 362
Copyright
Copyright © International Centre for Diffraction Data 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Wong-Ng, W. and Hubbard, C.R., “Standard Reference Materials for X-ray Diffraction & Part II Calibration Using d-Spacing Standards”, 6, 2.1 in “Methods and Practices in X-ray Powder Diffraction”, JCPDS - International Centre for Diffraction Data, Swarthmore, (1989).Google Scholar
2. Gosselin, R.E., Smith, R.P., Hodge, H.C. and Braddock, J.E., “Clinical Toxicology of Commercial Products”, 5th edition, Williams and Wilkins, Baltimore/London, (1984).Google Scholar
3. Stabb, D.J., Powder Diffraction File No. 31-1607.Google Scholar