Sampling effects would include the nature of the sample (feces, meat), as well as time and place.
Reflectance spectrum of 3DOM PE also provided verification of the uniform nature of the sample.
The crystalline nature of the sample was ensured by X-ray diffraction measurement after each annealing.
As temperature is varied, no changes in chemical shift are observed, consistent with the diamagnetic nature of the sample, expected from Sc3+ with a d 0 configuration.
The released silicate was measured either by photometry or atomic absorption spectrometry, depending on the nature of the sample.
Probably the single most important factor in generating the differences in establishment election polls, though, is the nature of the sample: some polls survey all adults, some polls survey only registered voters, and some polls survey only likely voters.
The analytical method development was designed based on the chromatographic properties of the analytes, the nature of the sample matrix and the intended purpose of the method.
XAS investigation further supports the metallic nature of the sample.
The pattern indicates the polycrystalline nature of the sample.
SAED pattern reveals halo ring-like patterns indicating amorphous nature of the sample.
The single crystalline nature of the sample studied is clearly revealed.
