Chem 287_Chapter 20

Chem 287_Chapter 20 - 287 Chapter 20 Atomic Spectrometry Elemental analysis Flame/plasma reduces all(or most of the sample to atoms Sample

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
287 Chemistry Salin Ch 20 Page 1 287 Chapter 20: Atomic Spectrometry Elemental analysis Flame/plasma reduces all (or most) of the sample to atoms Sample generally in liquid form Aspirated into flame or plasma Dries to salt Breaks down to atoms 287 Chemistry Salin Ch 20 Page 2 287 Chapter 20: Atomic Spectrometry Types of Atomic Spectrometry Absorption Fluorescence (not common) Mass (not discussed) Emission Flame/plasma excites atom Signal = constant*[concentration] E analyte = k*[A]
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
287 Chemistry Salin Ch 20 Page 3 287 Chapter 20: Atomic Spectrometry Types of Atomic Spectrometry Absorption Light source provides excitation radiation Beer’s Law used Absorbance = A = -log T = k[analyte] A = -log T = E sample /E reference 287 Chemistry Salin Ch 20 Page 4
Background image of page 2
287 Chemistry Salin Ch 20 Page 5 Flame Absorption System 287 Chemistry Salin Ch 20 Page 6 Hollow Cathode Lamp Absorption Light Source Single element or (limited) multielement High Voltage Limited Intensity
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
287 Chemistry Salin Ch 20 Page 7 287 Chemistry Salin Ch 20 Page 8 Atomic Lines (hollow cathode lamp)
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/15/2011 for the course CHEM 287 taught by Professor Burns during the Fall '08 term at McGill.

Page1 / 11

Chem 287_Chapter 20 - 287 Chapter 20 Atomic Spectrometry Elemental analysis Flame/plasma reduces all(or most of the sample to atoms Sample

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online