Questions Science and Education

What is analytical chemistry?


Prerna Das

Do not stop until you are proud

Analytical chemistry is the subdivision of chemistry which deals with the qualitative and quantitative determination of chemical compounds of substances. Analytical chemistry contains classical, wet chemical methods and modern instrumental methods. The qualitative inorganic analysis shows the presences of a given inorganic compound in a sample. The qualitative organic study is responsible for displaying the appearances of a functional group or organic group sample. Quantitative analysis shows the quantity of compound used in an example.

Qualitative analysis includes chemical tests such as acid test, Kastle-Meyer test, etc.; It also provides flame tests. Quantitative analysis is of two types one is gravimetric analysis, and the other is volumetric analysis.


Justus von Liebig proposed and developed a system to identify compounds. He also proved that a specified functional group for example aldehydes react in similar ways. Robert Bunsen and Gustav Kirchhoff together formed the first instrument which is used to analyze compounds and determine elements involved in that compound. The device invented was a flame spectrometer.

As technology has been developed many new methods such as spectrometry, NMR-chromatography, and High-Performance Liquid Chromatography (HPLC) came into existence. New instruments are also introduced, and many more opportunities are coming up.

Work of analytical chemists

The main work of analytical chemists includes nothing but understanding the configuration and working principles of substances, also their chemical structures and nature. Analytical chemists work using sophisticated instruments. They need to prepare a compound in the NMR-chromatography method and uses it for further analysis. They are also employed in drug development, forensic analysis, etc.; they also use a wide range of software techniques to carry out research works. They are also responsible for making reports of the results and guiding fellow members and also developing new analytical methods. They also work in oil and petroleum companies.


Analytical chemistry is determined to be based on the performance of sensitivity, selectivity, precision, speed, etc.; some of the examples for rapidly increasing areas are proteomics, metabolomics, metallomics. Some of the techniques such as titration, separation of chemicals, analysis of substances, mass spectrometry are used in analytical chemistry. Analytical chemistry is essential as it is used to invent new compounds and also to observe their reactions etc.; Thus analytical chemistry is the science of chemical measurements. Nowadays demand for analytical chemists is decreased due to automation; Robots are used for testing the samples.

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