Analytical Chemistry Theories

Branches of Analytical Chemistry

Two sub-branches come under analytical chemistry namely quantitative analysis and qualitative analysis which can be explained as follows. These two methods form the backbone of many educational labs of analytical chemistry.

1. Quantitative analysis:

Quantitative Analysis is a method of determining the absolute or relative quantity regarding the concentration of one or more substances present in a sample or compound.

For example, Take a sample of an unknown solid substance. The chemists first use “qualitative” methods to identify what type of compound is present in the sample; then he adopts the quantitative analysis procedure to determine the exact amount or the quantity of the compound present in the sample.

Some of the Quantitative analysis techniques include Gravimetric Analysis and  Volumetric analysis.

2. Qualitative analysis:

Quality means the standard or the feature of one substance. Hence Qualitative analysis method deals with the determination of the quality of a particular compound, irrespective of its quantity or concentration. In simpler words, the qualitative analysis does not measure the amount of the substance but measures the quality of that material. One of the best examples of this type of method is the observation of a chemical reaction, whether there will be a change in color or not.

The qualitative analysis method can be measured in different ways such as Chemical tests, flame tests, etc.

Importance of Analytical Chemistry

Analytical chemistry is the branch which is taught in almost all schools and colleges. But the applications of it are made in pharmaceutical industries, food factories, chemical industries, agricultural industries and in scientific laboratories. The tools used for this purpose are quite expensive which one cannot afford at home.

All the consumables which we buy such as medicines, cosmetics, chemicals undergo the process of qualitative and quantitative tests before reaching your hands.

Applications of Analytical Chemistry

Analytical Chemistry finds its many applications coming in different fields of science and technology.

  • In the field of agriculture, it is employed for testing soil, water testing and testing of harvested crops.
  • In the medical field, it is used in the testing of serum cholesterol, blood glucose levels, and urine ketones.
  • It is employed in the process of chromatography where the blood samples of a person are classified.
    Analytical Chemistry
  • It has its other applications in the field of forensics, clinical analysis, bioanalysis, environmental analysis, materials analysis, etc.

Practise This Question

Potable water is