QUIZ CHAPTER 28. Atomic Spectrometry

Which method is used for qualitative and quantitative determination of over 70 elements?

• Gas chromatography

• Atomic spectrometry

• Mass spectrometry

• Infrared spectroscopy

What concentration range can atomic spectroscopic methods detect?

• Parts-per-thousand to parts-per-hundred

• Parts-per-billion to parts-per-million

• Parts-per-million to parts-per-thousand

• Parts-per-billion to parts-per-trillion

What does AFS measure after excitation of the target element?

• Absorbed radiation

• Transmitted radiation

• Emitted radiation

• Reflected radiation

What effect helps discriminate between lamp radiation and atomizer radiation in AAS?

• Background correction

• Source modulation

• Line-width effects

• Ionization

Which instrument component converts emitted radiation into electrical signals in AES?

• Light source

• Atomizer

• Wavelength isolation device

• Transducers

What nonlinearity issue arises due to self-absorption at high analyte concentrations?

• Collisional broadening

• Doppler broadening

• Line-width effects

• Blank interferences

Which technique is used to precisely measure background absorbance in AAS?

• Pressure broadening

• Wavelength isolation

• Background correction

• Source modulation

What effect broadens atomic spectral lines due to collisions in the gas phase?

• Doppler broadening

• Natural broadening

• Collisional broadening

• Pressure broadening

Which source offers advantages such as high temperatures and sensitivity in atomic emission spectrometry?

• Electrothermal atomizer

• Flame atomizer

• Inductively coupled plasma

• Hollow-cathode lamp

Which spectroscopy measures the emitted radiation instead of absorbed radiation?

• Absorption spectroscopy

• Emission spectroscopy

• Fluorescence spectroscopy

• Reflectance spectroscopy