{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chem 287_Chapter 20

Chem 287_Chapter 20 - 287 Chapter 20 Atomic Spectrometry...

Info icon This 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]
Image of page 1

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

View Full Document Right 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
Image of page 2