July 2012
Intermediate to advanced
758 pages
17h 12m
English
Content preview from Pharmaceutical AnalysisBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
Chapter 9
Plasma Emission Spectroscopy
INTRODUCTION
The plasma is used as an atomisation source for emission spectroscopic method is known as plasma emission spectroscopy. Plasma is defined as a cloud of highly ionised gas which is composed of electrons. In plasma emission spectroscopy, the gas usually used is argon which is ionised by the influence of a strong electrical field either by a direct current or by radio frequency.
Based on the current applied, plasma emission spectroscopy is classified as the following:
- Direct current plasma emission spectroscopy.
- Inductively coupled plasma emission spectroscopy.
Plasma was first identified by Sir William Crookes in 1879 in a Crookes tube.
PRINCIPLE
The main principle involved here is atomisation ...