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What is the principle of separation in High Performance Liquid Chromatography?
What is the principle of separation in High Performance Liquid Chromatography?
- Different components of a mixture have different boiling points
- Different components of a mixture have different interactions with the stationary and mobile phases
- Different components of a mixture have different tendencies to adsorb onto very fine particles of a solid (correct)
- Different components of a mixture have different molecular weights
What is the purpose of the flame in Atomic Absorption Spectroscopy?
What is the purpose of the flame in Atomic Absorption Spectroscopy?
- To convert the sample into a gas
- To convert the sample element into atoms of that element (correct)
- To detect the sample
- To ionize the sample
What is the relationship between absorbance and concentration in Atomic Absorption Spectroscopy?
What is the relationship between absorbance and concentration in Atomic Absorption Spectroscopy?
- Absorbance is exponential to concentration
- Absorbance is inversely proportional to concentration
- Absorbance is logarithmic to concentration
- Absorbance is directly proportional to concentration (correct)
What is the purpose of the mobile phase in chromatography?
What is the purpose of the mobile phase in chromatography?
What is the principle of separation in Gas Chromatography?
What is the principle of separation in Gas Chromatography?
What is the primary principle of separation in a mass spectrometer?
What is the primary principle of separation in a mass spectrometer?
What is the purpose of vaporisation in a mass spectrometer?
What is the purpose of vaporisation in a mass spectrometer?
What is the relationship between absorbance and concentration in ultraviolet spectroscopy?
What is the relationship between absorbance and concentration in ultraviolet spectroscopy?
What is the purpose of passing UV light through a blank in ultraviolet spectroscopy?
What is the purpose of passing UV light through a blank in ultraviolet spectroscopy?
What is the primary application of mass spectrometry in environmental analysis?
What is the primary application of mass spectrometry in environmental analysis?
What is the purpose of ionisation in a mass spectrometer?
What is the purpose of ionisation in a mass spectrometer?
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