Dear all,
I am a new member of this mailing list. My background is environmental
engineer. At the moment I am conducting a research related to the
crystalline iron oxide magnetite. One of the analyses that I have to do is
the determination the unit cell dimension (lattice parameter) of the crystal
Dear Gumelar Pritosiwi,
There are two independent topics in your question. If you are using a well
calibrated conventional diffractometer to determine your cell parameters
then you dont need an internal standard. That would be useful if you,
additionally, need to do a quantitative phase analys
Hi,
First of all thank you for all the comments and suggestions for my first
email. About the internal standard, my purpose is to consider the
instrumental effect (e.g. peak broadening). I do not know whether this
effect can shift the peak positions. Can somebody give me information about
this?. T
It is indeed advisable to start with an internal standard to check that there
is no instrumental error or sample position issue (sample displacement is the
more common cause of peak shift).
Silicon powder is often used as a standard, a standard reference material (SRM)
is sold by the NIST (SRM64
Hi all,
This may be a non-issue given the high accuracy of diffraction measurements,
and the internal checks on sample position, such as dependent peaks that lead
to the sample shift, but there is something I've always wondered about when an
internal standard is used in combination with refi
A simple program to carry out unit cell determination is Winplotr. In the
link bellow there are demos that show you how to do this if you have never
used it before.
http://www-llb.cea.fr/fullweb/winplotr/winplotr.htm
Good luck!
Paula
MSc. Paula Vera-Cruz
PhD student at the Instituto de Investi
