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