Which spectroscopy is used to determine metal concentration?, Atomic Absorption, IR spectroscopy, NMR spectroscopy, UV visible spectroscopy, The basic principle of AAS is based on the absorption of radiation by:, Molecules in the ground state, Excited molecules, Free atoms in the ground state, Ions only, Which flame is commonly used in flame AAS :, Air-acetylene, Hydrogen-chlorine, Nitrogen-oxygen, Carbon dioxide-air, Which detector is commonly used in AAS?, Photomulti-plier tube, Geiger–Müller counter, Thermistor only, pH electrode, What does AAS primarily determine?, Elemental concentration, Molecular weight of polymers, Microbial count, Boiling point, What is the main function of the atomizer in AAS?, Separate isotopes, Convert sample into free atoms, Measure pH, Produce fluorescence, What is the purpose of the monochromator in AAS?, Atomize the sample, Select the required wavelength, Produce the flame, Increase sample volume, What is the role of a deuterium lamp in many AAS instruments?, Element-specific radiation source, Background correction, Sample digestion, Flame ignition, Which interference occurs when other species absorb or scatter radiation?, Spectral interference, Mechanical interference only, Biological interference, Geometrical interference, Which of the following is a limitation of conventional AAS?, It can measure no metals, Usually measures one element at a time, It cannot use liquid samples, It measures only organic compounds

Atomic Absorption Spectroscopy

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