What are the limitations of ICP-MS analysis? (There can be one or more correct answers)
Solid samples can not be analysed
Poor sensitivity of the technique
Solid samples must usually be dissolved
A large sample size is required
The analysis is destructive or semi-destructive
Which of the following statements about LA-ICP-MS is correct? (There can be one or more correct answers)
All sample sizes can be analysed
The sample size is limited by the size of the ICP-MS
It is a non-destructive method
Reference material with suitable composition is needed
A sample is sent to ICP-MS for quantitative analysis. How much material is needed? (There can be one or more correct answers)
A few to a few hundred milligrams
The amount depends on the sample and the elements of interest
A few grams
A few nanograms
What information can be obtained with ICP-MS? (There can be one or more correct answers)
The concentration of metals in the sample
Lead isotope ratios of the sample
Carbon isotope ratios of the sample
The concentration of organic binders in the sample
Which of the following statements is correct? (There can be one or more correct answers)
ICP-MS is a destructive method of analysis
ICP-MS provides information about the molecular structure of the material
The ions are separated in the mass separation device according to their mass
ICP-MS can only be used to analyse solids that dissolve in water
Why is it not possible to quantify HNO3 in a liquid with ICP-MS? (There can be one or more correct answers)
The method cannot be used to quantify N and O
It vaporizes too fast
This method cannot analyse solids
It is possible in theory, but it would take too much time
How are solid samples typically analysed in ICP-MS spectrometry? (There can be one or more correct answers)
Pyrolysed into a gas prior to analysis
Directly with the use of Laser Ablation
Preparation is not needed
By dissolving in appropriate liquid prior to analysis
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