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homework solutions5 - Homework Solutions for Chem 422...

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Homework Solutions for Chem 422 Chapter 9 1. a) A releasing agent is a substance that reacts preferentially with a chemical interference, thus preventing its interaction with the analyte. b) A protective agent is a chelating agent that prevents chemical interferences by forming stable but volatile combinations with the analyte. c) An ionization suppressor is an easily ionized metal that provides a high concentration of electrons in the flame, thereby lessening the ionization of the analyte. d) Atomization is the conversion of a sample into an atomic vapor.. e) Pressure broadening is the broadening of natural absorption line widths by collisions with other atoms or ions in the flame. f) A hollow cathode lamp is a discontinuous radiation source used for atomic absorption spectrophotometry consisting of a cathode composed of the analyte of interest. g) Sputtering is the dislodging of atoms from a surface by bombardment with high energy particles. h) Self-absorption is the absorption of radiation from excited atoms by unexcited atoms in the same sample.
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