Analytical chemistry is the branch of chemistry that deals with the analysis of different substances.
It involves the separation, identification, and the quantification of matter. It involves the use of classical methods along with modern methods involving the use of scientific instruments.
Analytical chemistry involves the following methods:
Today, the field of analytical chemistry generally involves the use of modern, sophisticated instruments. However, the principles upon which these instruments are built can be traced to more traditional techniques.
The methods used to determine the identity and the quantity of the analytes in the field of analytical chemistry can be broadly divided into classical and instrumental methods.
1. Classical Methods
2. Instrumental Methods
It can be noted that even biological measurements are made with the help of this branch of chemistry, and this field is known as bio 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 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 colour or not.
The qualitative analysis method can be measured in different ways such as Chemical tests, flame tests, etc. Several such tests are widely used in salt analysis (identification of the cation & anion of inorganic salts).
3. 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.
Some important applications of this branch of chemistry are listed below.
Analytical chemistry is an integral part of forensic science, clinical analysis, and even environmental analysis.
|1. What is analytical chemistry?
|2. What is the difference between qualitative and quantitative analysis in analytical chemistry?
|3. What are some common techniques used in analytical chemistry for qualitative analysis?
|4. What are some common techniques used in analytical chemistry for quantitative analysis?
|5. Why is analytical chemistry important in various industries?