The general stage of chemical analysis consists of a total of 7 stages.

1. Systematic expression of questions

2. Selection of the analysis process

3. Sample collection

4. Sample preparation

5. Analysis

6. Report and interpretation

7. Derivation of results

Consists of

2. In the case of selection of the analysis process, new analysis techniques should be developed, if necessary, and this is an important step to predict analysis, experimental design design, and even results.

This is the reason why Korean university students do not do well when they graduate from undergraduate school and work in companies or research institutes. Therefore, they need to study in detail about analytical chemistry and gain knowledge.

Germany's Meister System is a prime example.

3.4.5 is an experimental step. 4. Sample preparation involves melting the sample, removing or masking chemical species that interfere with the chemical analysis (mask).

In addition, sample preparation involves measuring the volume of the sample and measuring the mass, which is measured using a tool, and a mass cylinder, pipette, etc. is used for volume measurement, and a balance is used for mass.

5.6.7 is the analytical step, that is, chemical calculation. 5. In the analysis, repeated measurements and quality assurance are performed.

An example of this is the last article, measuring the number of cocaine drug offenders on the Po River in Italy.

biostudy.tistory.com/187

The above article is that article

It means that the number of people was less than expected, and it was an experiment in a water treatment plant, and it is an analytical chemistry.

Cooking is the biggest example of analytical chemistry.

Cooking has a purpose, measurement, and response, and cooking can be said to be an experiment as well.

Analytical chemistry and chemistry experiments, which are the basis of quantitative and viscous analysis, are the first steps in everything.