Analytical chemistry is the science of what is studied

An important branch of chemistry. Its main task is to study the following questions: what elements and/or groups are present in a substance (qualitative analysis); Each type of into.

Analytical Chemistry Books.

the quantity of the fraction or the purity of the substance (quantitative analysis); How atoms in matter are connected to each other to form molecules and how they are arranged in space (structural and stereoscopic analysis). The subjects of study range from elemental to complex mixtures and macromolecular compounds, from inorganic to organic, and from low to high molecular weight (e.g., 107 atomic mass units). Samples can be gaseous, liquid, and solid.

The weight of the sample can be determined by:

More than 100 grams and less than milligrams. 1931 eThe residue determination proposed by Wiesenberg, in which only 10 micrograms of sample is taken, is an ultra-micro analysis.

The instruments used range from test tubes to advanced instruments (with automation equipment and controlled, recorded and stored with computer programs).

Analytical chemistry is based on the basic theories and experimental techniques of chemistry, and absorbs the knowledge of physics, biology, statistics, computers, automation, etc., to enrich its own content, so as to solve various analytical problems raised by science and technology.

Analytical chemistry is mainly divided into chemical analysis and instrumental analysis.

Chemical analysis is mainly divided into acid-base titration, coordination titration, redox titration, and gravimetric titration.

Instrumental analysis is mainly divided into ultraviolet, infrared, nuclear magnetic resonance, and mass spectrometry. These are the main analytical chemistry content that we study in our school, which can be used for your reference.

Information on the chemical composition and structure of the substance.

Analysis based on the chemical reaction of a substance is called chemical analysis. Chemical analysis has a long history and is the foundation of analytical chemistry, also known as classical analysis. Chemical analysis is absolutely quantitative, and the amount of components to be measured is calculated according to the amount of sample, the amount of reaction products or the amount of reagent consumed and the stoichiometric relationship of the reaction.

Another important analytical method, instrumental analysis, is relative quantitative, which is estimated according to the standard operating curve. Chemical analysis can be divided into titration analysis and gravimetric analysis according to the different methods of operation. In recent years, another concept of analysis has been formed in China.

The analyses include: principal component analysis and total component analysis, etc.

1. Analytical chemistry is a science that studies the analysis methods and theories of chemical information such as the composition, content, structure and morphology of substances, and is an important branch of chemistry. 2. It is to identify the components contained in the substance, and what components the substance is composed of, determine the relative content of various components, and study the molecular structure or crystal of the substance. 3. The main task of analytical chemistry is to identify the chemical composition of substances (elements, ions, etc.).

Analytical chemistry is a science that studies the analysis methods and theories of chemical information such as the composition, content, structure and morphology of substances.

Scope of application: Analytical chemistry has high practical value, has made an important contribution to the material civilization of mankind, and is widely used in geological survey, mineral exploration, metallurgy, chemical industry, energy, agriculture, medicine, clinical laboratory, environmental protection, commodity inspection, archaeological analysis, forensic forensic investigation and identification.

Analytical Chemistry

Analytical chemistry is the science of studying and obtaining chemical information and related theories such as chemical composition, morphology, and molecular structure of substances. As an important branch of chemistry, analytical chemistry is known as the eye of science and technology, a window for human beings to understand the chemical world and a tool to explore the microscopic world of matter. The analytical chemistry course is the basic course of chemistry, chemical engineering, environment, life, materials and other majors.

This course emphasizes both basic knowledge and innovation ability, so that learners can not only have a deep foundation in analytical chemistry, but also understand the progress and frontier of analytical chemistry, and cultivate students' ability to analyze and solve practical problems with the concept of "quantity" and creative thinking in analytical chemistry. In order to meet the learning needs of learners at different levels, the curriculum has built a variety of digital resources.

The above content reference:Encyclopedia – Analytical Chemistry

The following is a discipline that studies what analytical chemistry is:

1. Analytical methods and techniques

Analytical chemistry involves a variety of analytical methods and techniques, including spectroscopy (such as ultraviolet-visible spectroscopy, infrared spectroscopy, nuclear magnetic resonance, etc.), chromatography (gas chromatography, liquid chromatography), electrochemical analysis (potentiometric titration, electrolysis), nuclear mass spectrometry, thermal analysis, and microscopy techniques. These methods and techniques provide the tools and means to obtain sample information.

2. Sample pretreatment

Prior to analysis, the sample is often subjected to a series of pretreatment steps to remove interferences, concentrate the sample, or transform the sample into the form required for the test. Pretreatment methods include extraction, soaking, filtration, extraction, dissolution, drying, etc.

3. Analytical standards and quality control

In order to ensure accurate and reliable analytical results, analytical chemistry needs to establish analytical standards and quality control mechanisms. This includes accurate chemistries, standards, calibration curves, internal and external quality control, and more to ensure the accuracy and reproducibility of the analysis.

4. Data processing and interpretation

The vast amount of data generated in analytical chemistry needs to be processed and interpreted. This includes the use of statistical methods to calculate the mean, standard deviation, confidence interval, etc. of the results; Use computer software for data analysis, spectral analysis, data visualization, etc.

5. Experimental safety and environmental protection

Analytical chemistry experiments require strict adherence to laboratory safety practices to ensure the safety of operators. In addition, analytical chemistry needs to pay attention to the protection measures of the environmental environment when using and handling chemicals to avoid environmental pollution.

6. Application field

Analytical chemistry has a wide range of applications in many coarse domains. For example, in the environmental field, it is used for water quality testing, air pollutant monitoring, and soil analysis; In terms of food safety, it is used to detect additives, pesticide residues and heavy metals in food; In drug development, it is used for the analysis of drug content and purity.

These are some of the details in the field of analytical chemistry. Analytical chemistry plays an important role in modern science and industry, providing researchers and engineers with critical information about the properties, composition, and quality of matter.