These include solving and refining crystal structures by electron crystallography, chemical analysis of the sample composition through energy-dispersive X-ray spectroscopy, investigations of electronic structure and bonding through electron energy loss spectroscopy, and studies of the mean inner potential through holography.
Young's modulus can vary somewhat due to differences in sample composition and test method.
It should induce no change in sample composition.
The operating program must be carefully chosen according to the expected sample composition.
Counting efficiency varies for different isotopes, sample compositions and scintillation counters.
This can be used to gain information about the sample composition in terms of chemical groups present and also its purity (for example a wet sample will show a broad O-H absorption around 3200 cm).
The militantly anal seekers of meaningful data will inquire about the survey methodology, sample composition, size.
The following is a sample composition of a typical 16th-century Portuguese India nau (carrack):
In 1920, when presented with small glass vials of scent numbered 1-5 and 20-24, for her assessment, she chose the sample composition contained in the fifth vial.
"The sample composition in May 2004 is more like the sample composition of May 2003 than the sample composition of September 2003 was like the sample composition of September 2002," Mr. Donato said.