Spectroscopy is a branch of science that deals with the interaction of matter and electromagnetic radiation. Some key types of spectroscopy described in the document are atomic spectroscopy, which analyzes the radiation absorbed and emitted by atoms to determine elemental composition. Infrared spectroscopy analyzes absorption in the infrared region to provide information about chemical structure. Raman spectroscopy is a non-destructive technique that provides detailed chemical information based on the interaction of light with chemical bonds. Spectroscopy has various applications including cure monitoring of composites, estimating weathered wood exposure times, measuring toxic compounds in blood, and non-destructive elemental analysis.

1. Spectroscopy
- by R.Varshini
Ⅱ- BIOTECH

2.  Spectroscopy
 Discovery of Spectroscopy
 Principle of Spectroscopy
 Types of Spectroscopy
 Application of Spectroscopy

3. Spectroscopy
 It is a branch of science that deals
with interaction of Matter with light or
Electromagenetic Radiation.

4. Discovery of Spectroscopy
 The systematic attribution of spectra to
chemical elements began in the 1860s
with the work of German physicist
Gustav Kirchhoff and chemist Robert
Bunsen. They demonstrated that
spectroscopy could be used for trace
chemical analysis and several of the
chemical elements they discovered were
previously unknown.

5. Principle of Spectroscopy
 Spectroscopy deals with the production,
measurement, and interpretation of spectra
arising from the interaction of
electromagenetic radiation with matter.
There are many different spectroscopic
methods available for solving a wide range
of analytical problems.

6. Types of Spectroscopy
 There are Many different types of
spectroscopy, but the Most common types
used for chemical analysis includes atomic
spectroscopy, ultraviolet and visible
spectroscopy, infrared spectroscopy,
Raman spectroscopy and nuclear magnetic
resonance.

7. Atomic Spectroscopy
 atomic spectroscopy is the study of the
electromagnetic radiation absorbed
and emitted by atoms. Since unique
elements have characteristic spectra ,
atomic spectrum specifically the
electromagnetic spectrum or mass
spectrum, is applied for determination
of elemental compositions.

8. Ultraviolet & Visible
Spectroscopy
 UV spectroscopy is a type of
absorption spectroscopy in which light
of the UV region (200–400 nm) is
absorbed by the molecule. Absorption
of the UV radiations results in the
excitation of the electrons from the
ground state to a higher energy state.

9.  Visible spectroscopy is the study of the
interaction of radiation from the
visible part (λ = 380 - 720 nm) of the
electromagnetic spectrum with a
chemical species.

10. Infrared Spectroscopy
 Infrared spectroscopy is the
spectroscopy that deals with the infrared
region of the electromagnetic spectrum,
that is light with a longer wavelength and
lower frequency than visible light. It covers
a range of techniques, mostly based on
absorption spectroscopy.

11. Raman Spectroscopy
 Raman Spectroscopy is a non-destructive
chemical analysis technique which provides
detailed information about chemical
structure, phase and polymorphy ,
crystallinity and molecular interactions. It is
based upon the interaction of light with the
chemical bonds within a material.

12. Nuclear Magnetic Resonance
Spectroscopy
 Nuclear Magnetic Resonance
(NMR) spectroscopy is an analytical
chemistry technique used in quality control
and reserach for determining the content
and purity of a sample as well as its
molecular structure.

13. Application of Spectroscopy
 Cure monitoring of composites using optical
fibers.
 Estimate weathered wood exposure times
using near infrared spectroscopy.
 Measurement of toxic compounds in blood
samples
 Non-destructive elemental analysis by X-
ray fluorescence.
 Electronic structure research with various
spectroscopes.

14. conclusion