What does FAA stand for in the context of atomic absorption spectrometry?

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Multiple Choice

What does FAA stand for in the context of atomic absorption spectrometry?

FAA stands for Flame Atomic Absorption Spectrometry. In this method, the sample is aspirated into a flame where it is atomized, and light at a wavelength specific to the element is absorbed by those atoms. The absorbance is proportional to the element’s concentration, forming the basis of the measurement. This is different from Graphite Furnace Atomic Absorption (GFAA), where a graphite furnace is used for atomization to achieve higher sensitivity. The other options point to other techniques—ICP-OES is a different instrument and detection principle, and Atomic Absorption with Fluorescence isn’t a standard AA method. So the flame-based approach is the correct expansion.

FAA stands for Flame Atomic Absorption Spectrometry. In this method, the sample is aspirated into a flame where it is atomized, and light at a wavelength specific to the element is absorbed by those atoms. The absorbance is proportional to the element’s concentration, forming the basis of the measurement. This is different from Graphite Furnace Atomic Absorption (GFAA), where a graphite furnace is used for atomization to achieve higher sensitivity. The other options point to other techniques—ICP-OES is a different instrument and detection principle, and Atomic Absorption with Fluorescence isn’t a standard AA method. So the flame-based approach is the correct expansion.

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