MindMap Gallery The Historical Development of Analytical Chemistry
The historical development of analytical chemistry has undergone several stages. In its early beginnings, alchemy and early instrumental methods laid the foundation for analytical chemistry. During the 17th and 18th centuries, qualitative analysis techniques developed, and chromatography was introduced. By the 19th century, significant advancements were made in quantitative analysis, and the establishment of atomic theory provided a solid theoretical basis for the development of analytical chemistry.
Edited at 2024-12-13 02:31:45In the introduction section, elastin is a protein that plays a crucial role in the body, endowing tissues with elasticity and toughness. Its properties include high elasticity and good ductility. Elastin has a wide range of sources and is commonly found in animal connective tissues such as skin and blood vessels. When using elastin in products, the amount and method of addition should be determined based on the characteristics of the product. It has many uses and can be added to skincare products to enhance skin elasticity and reduce wrinkles; Improving food texture and enhancing taste in the food industry; In the medical field, it can be used to make elastic scaffolds such as artificial blood vessels, providing support for tissue repair. Reasonable use can play its unique value.
This document aims to guide the proper use of proteins. Proteins are the fundamental substances that make up life and are essential for maintaining normal physiological functions in the body, with a wide variety of types. When using protein, daily diet is an important source, such as meat, eggs, etc., which are rich in high-quality protein. Measuring protein intake can be done using professional tools or methods to ensure that the intake meets the body's needs. When mixing protein powder, it should be prepared according to the recommended ratio, and the water temperature should not be too high to avoid damaging the protein activity. Different groups of people have different protein requirements, such as athletes and fitness enthusiasts who can increase their intake appropriately to meet the needs of body repair and muscle growth.
Introduction to Unsaturated Polyester Resin: It is an important thermosetting resin with various excellent properties. It has a wide range of applications and is used in the construction industry to produce fiberglass products such as doors, windows, decorative panels, etc; Used in the automotive industry for manufacturing body components. The advantages of use include simple molding process, low cost, and chemical corrosion resistance. However, it also faces challenges and limitations, such as relatively poor heat resistance and susceptibility to aging. During use, corresponding protective measures should be taken according to specific application scenarios, such as adding heat-resistant agents, antioxidants, etc., to extend their service life and fully leverage their advantages.
In the introduction section, elastin is a protein that plays a crucial role in the body, endowing tissues with elasticity and toughness. Its properties include high elasticity and good ductility. Elastin has a wide range of sources and is commonly found in animal connective tissues such as skin and blood vessels. When using elastin in products, the amount and method of addition should be determined based on the characteristics of the product. It has many uses and can be added to skincare products to enhance skin elasticity and reduce wrinkles; Improving food texture and enhancing taste in the food industry; In the medical field, it can be used to make elastic scaffolds such as artificial blood vessels, providing support for tissue repair. Reasonable use can play its unique value.
This document aims to guide the proper use of proteins. Proteins are the fundamental substances that make up life and are essential for maintaining normal physiological functions in the body, with a wide variety of types. When using protein, daily diet is an important source, such as meat, eggs, etc., which are rich in high-quality protein. Measuring protein intake can be done using professional tools or methods to ensure that the intake meets the body's needs. When mixing protein powder, it should be prepared according to the recommended ratio, and the water temperature should not be too high to avoid damaging the protein activity. Different groups of people have different protein requirements, such as athletes and fitness enthusiasts who can increase their intake appropriately to meet the needs of body repair and muscle growth.
Introduction to Unsaturated Polyester Resin: It is an important thermosetting resin with various excellent properties. It has a wide range of applications and is used in the construction industry to produce fiberglass products such as doors, windows, decorative panels, etc; Used in the automotive industry for manufacturing body components. The advantages of use include simple molding process, low cost, and chemical corrosion resistance. However, it also faces challenges and limitations, such as relatively poor heat resistance and susceptibility to aging. During use, corresponding protective measures should be taken according to specific application scenarios, such as adding heat-resistant agents, antioxidants, etc., to extend their service life and fully leverage their advantages.
The Historical Development of Analytical Chemistry
Early Beginnings
Ancient Civilizations
Use of simple chemical tests
Gold and silver testing
Alchemy practices
Development of basic equipment
Crucibles
Distillation apparatus
Middle Ages
Alchemists' contributions
Purification of metals
Search for the philosopher's stone
17th and 18th Centuries
Scientific Revolution
Emergence of modern chemistry
Lavoisier's work on combustion
Law of conservation of mass
Development of analytical techniques
Gravimetric analysis
Qualitative analysis
19th Century
Advancements in Organic Chemistry
Development of organic analysis
Elemental analysis
Functional group identification
Instrumental Analysis
Spectroscopy
Development of the spectroscope
Identification of elements by spectra
Electrochemistry
Discovery of electrolysis
Development of the pH scale
20th Century
Rise of Instrumental Methods
Chromatography
Paper chromatography
Gas chromatography
Spectroscopy advancements
Atomic absorption spectroscopy
Nuclear magnetic resonance (NMR)
Electroanalytical techniques
Polarography
Potentiometry
Computerization and Automation
Introduction of computers in data analysis
Automation of data collection
Statistical methods for data interpretation
Miniaturization of instruments
Development of microchips
Portable analytical devices
21st Century
Highthroughput Analysis
Development of labonachip technology
Microfluidics
Pointofcare diagnostics
Advanced Spectroscopic Techniques
Mass spectrometry
Tandem mass spectrometry (MS/MS)
Matrixassisted laser desorption/ionization (MALDI)
Raman spectroscopy
Surfaceenhanced Raman spectroscopy (SERS)
Computational Chemistry
Molecular modeling
Docking studies
Quantum chemical calculations
Big Data and Cheminformatics
Data mining in chemical databases
Predictive modeling for drug discovery
Environmental and Forensic Applications
Development of environmental monitoring techniques
Detection of pollutants
Heavy metals
Persistent organic pollutants (POPs)
Forensic analysis
Identification of trace evidence
DNA profiling
Isotope ratio mass spectrometry (IRMS)
Biomedical and Pharmaceutical Analysis
Drug development
Highthroughput screening (HTS)
Assay development
Compound library screening
Clinical diagnostics
Immunoassays
ELISA
Western blotting
Molecular diagnostics
Polymerase chain reaction (PCR)
Nextgeneration sequencing (NGS)