The sample must contain Uranium-235.
The sample must contain radioactive elements.
they must be correct and they must be the right kind of sample
You must keep a sufficient amount of sample to repeat analyzes if necessary and also to have a control (archive) sample.
No. -Iron must be filtered out by different methods. Get a sample tested to know how much iron you have.No. -Iron must be filtered out by different methods. Get a sample tested to know how much iron you have.
urine sample should be between 98-100 degrees F, I got this info at a store that sells pass urineproducts test
The sample must contain radioactive elements.
The purest uranium is obtained after a long series of chemical processes. Ex.: grinding, dissolving, filtering, ion exchange separation, solvent extraction, etc.
To perform carbon dating, we need a sample that contains organic material that was once alive, such as wood, bone, or charcoal. The sample must be carefully collected and preserved to avoid contamination. We also need to know the approximate age of the sample to determine the appropriate method and laboratory to use for analysis.
they must be correct and they must be the right kind of sample
The sample must be large and random.
The artifact must contain carbon-14.
It is not a sample. A sample must be a proper subset of the whole population.
The sample must have a high probability of representing the population.
What two features must a sample have to accurately represent a population?
they must be correct and they must be the right kind of sample
No.
The writer must perform an equal or similar function