Atomic Absorption Spectroscopy Quiz

What is the basic principle of Atomic Absorption Spectroscopy (AAS)?

• Emission of light by atoms

• Absorption of light by free atoms

• Scattering of light by molecules

• Ionization of atoms

Which component of the AAS instrument is responsible for producing the light source?

• Monochromator

• Detector

• Atomizer

• Hollow cathode lamp

In AAS, what is the role of the monochromator?

• To produce the atomized sample

• To separate light into its component wavelengths

• To measure the intensity of light

• To convert light into electrical signals

What type of flame is commonly used in AAS for atomization?

• Air-acetylene flame

• Hydrogen flame

• Nitrous oxide-acetylene flame

• All of the above

Which detector is commonly used in Atomic Absorption Spectroscopy?

• Photomultiplier tube

• Thermocouple

• Infrared sensor

• CCD camera

Which technique is used for the atomization of solid samples in AAS?

• Flame atomization

• Electrothermal atomization

• Microwave-assisted atomization

• Cold vapor atomization

What is the primary function of the burner in AAS?

• To provide a stable light source

• To atomize the sample and mix it with the flame

• To measure the absorbance of light

• To cool the sample

What is a common method for introducing liquid samples into the AAS system?

• Manual injection

• Nebulization

• Drying

• Chromatography

In AAS, which of the following techniques is used for the quantification of trace elements?

• UV-Vis spectroscopy

• Mass spectrometry

• Calibration curve method

• Titration

What is the advantage of using electrothermal atomization over flame atomization?

• Faster analysis

• Higher sensitivity

• Simpler instrumentation

• Lower cost