Quant_Lect_Elemen - Elemental Analysis Page 1 of 4...

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Elemental Analysis I. X-rays, UV/visible line emission, UV/visible line absorption, Ions/mass spectrometry, and why titration, gravimetry, spectrophotometry and electrochemistry rarely are competitive in industrialized societies: parallelism, selectivity, and detection limits. II. Techniques available at HUS: ICP-mass spectrometry, atomic absorption, spectrophotometry/redox or complex chemistry. Also common: ICP-emission spectrometry. Vocabulary: inductively-coupled plasma III. What's the physics? A. n u /n l = g u /g l exp - Δ E/kT . At high enough temperature, ionization is significant. Then electrostatic fields can manipulate ions and allow mass selection and detection. B. Why mass spectrometry is done in vacuum: reduced probability of collision. Analogy Page 1 of 4 Elemental Analysis 12/8/2010 https://courses.las.illinois.edu/file.php/173/Quant_Lect_ElementalAnalysis.html
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between Hanoi streets and ballistics. C. Kinetics of vaporization and atomization: remove solvent, vaporize solute, decompose
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This note was uploaded on 04/02/2012 for the course CHEMISTRY 222 taught by Professor Mcdonald during the Fall '11 term at University of Illinois, Urbana Champaign.

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Quant_Lect_Elemen - Elemental Analysis Page 1 of 4...

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