Classification of Atomic Spectroscopic Methods:

As declared earlier, in atomic spectroscopy, an elements present in a sample are converted to gaseous atoms or elementary ions within a process known as atomisation. This procedure could be accomplished within a number of ways, using any of the subsequent.

• Flame
• Electrothermal (or furnace) method
• Inductively coupled argon plasma
• Direct current argon plasma
• Electric arc

These methods accomplish the atomisation procedure within different temperature ranges. Once in the vapour phase, atoms of the elements interact along with radiation and gives information about themselves. The interaction of radiation and matter could manifest itself in terms of absorption, emission or fluorescence emission. Accordingly, we have atomic absorption, emission or fluorescence spectroscopies. Now let us learn about the primary principle of these methods.