What analytical methods are used for component analysis? Description of service items and purposes

Date：2023-03-14 14:41:52Views：387

Component analysis and detection is a good means to help accelerate product development and improve performance, but it has high requirements for samples and analysts' experience, which is a difficult analysis service. Product material testing and composition analysis should rely on mature testing technology and advanced equipment to control product quality for enterprises. To help you understand, the following content is organized by Chuangxin Testing Network for your reference.

Introduction to composition analysis method

1、 Chemical analysis

Also known as classical analysis, including titrimetric analysis and gravimetric analysis, the content of the components to be measured is calculated based on the amount of samples, the amount of reaction products or the amount of reagents consumed and the stoichiometric relationship of the reaction. Chemical analysis is a necessary means to identify the type and content of additional components in materials, and to analyze the composition of materials and accurately quantify them.

2、 Element analysis

Element analysis is an analytical method to study the characteristic spectral lines absorbed or emitted by the middle and outer layers of the measured element atoms when they transition from the ground state to the excited state. Through the analysis of the characteristic spectral lines, the element composition, chemical bond, atomic content and relative concentration of the material to be measured can be understood. Elemental analysis is an essential part of material analysis, which aims at the early element analysis of unconventional components in materials to assist and support chromatographic analysis.

3、 Chromatographic analysis

It is a process in which molecules of different components of materials are distributed and balanced between the stationary phase and the mobile phase. Different components are separated from each other on the stationary phase, which has achieved the purpose of qualitative analysis and quantitative analysis of materials. According to the separation mechanism, chromatographic analysis can be divided into adsorption chromatography, partition chromatography, ion exchange chromatography, gel chromatography, affinity chromatography and other analysis categories. Through the comprehensive application of various chromatographic technologies, component separation, quantitative and qualitative analysis of various materials can be achieved.

4、 Spectral analysis

Spectral analysis is a method to analyze the structural characteristics or content of materials by studying the emission spectrum, absorption spectrum, fluorescence spectrum and other characteristic spectra of materials. Spectral analysis is divided into visible, infrared, ultraviolet and X-ray spectral analysis according to the wavelength of light. Spectral analysis can accurately, rapidly and sensitively identify materials, analyze molecular structure of materials, determine chemical composition and relative content, which is the first step of qualitative analysis of materials in the process of material analysis.

5、 Joint use (interface) technology

The analysis of multi-component complex sample system can be realized through different modes and types of thermal analysis technology combined with chromatography, spectrum and mass spectrometry (interface) technology, which can complete the accurate, sensitive and rapid component and composition test of the material of component diversity and system diversity, and is an indispensable analytical method in the analysis of unconventional materials.

6、 Differential thermal analysis

Thermal analysis is a method to study the relationship between thermodynamic parameters or physical parameters and temperature changes. The physical properties of separable materials, such as crystal transformation, melting, adsorption, dehydration, decomposition, are widely used in the fields of physics, chemistry, chemical engineering, metallurgy, geology, building materials, fuel, light textile, food, biology, etc. The comprehensive application of thermal analysis technology can judge the type of material, the content of material components, screen the target material, and accurately predict the processing conditions and use conditions of the material, which is a very important part of the material analysis process.

Component analysis service

1. Organic solvent analysis: paint thinner, thinner, paint remover, solvent for electronics, textile and printing industries.

2. Solid substances, powder slag, etc.

3. Aerosols, brighteners, pesticides, release agents, lubricants, refrigerants, air fresheners.

4. Analysis of various additives: additives used in electronic industry (soldering flux), textile industry, coating, plastic processing industry: emulsifier, wetting dispersant, defoamer, flame retardant, etc; Analysis of electroplating (zinc, copper, chromium, nickel, precious metals) additives: pretreatment additives, brighteners, auxiliary brighteners, etc.

5. Analysis of textile and leather auxiliaries: softener, leveler, finishing agent, etc.

6. Analysis of additives for plastics and rubber products: plasticizers, plasticizers, antioxidants, flame retardants, light and heat stabilizers, foaming agents, fillers, antistatic agents, etc.

7. Cosmetics analysis: shampoo, hair care products, skin care products, beauty products, oral hygiene products, etc.

8. Ink analysis: ink, photosensitive ink, printing ink, etc.

9. Detergent analysis: detergent for civil and industrial use.

10. Polymer materials: adhesive, fiber, coating, rubber, plastic.

Purpose of component analysis

1. Understand raw material composition and quality control;

2. Used to analyze the product formula and quickly restore the basic formula;

3. Find evidence for product labels;

4. Prove that the product does not contain certain ingredients;

5. Find the reason for the decline of product performance;

6. Analyze the content of ingredients and understand the product performance;

7. Solve problems in the production process;

8. Compare products of different periods;

9. It can quickly find out the causes of unknown objects and eliminate hidden dangers;

10. It is used to improve product formula and imitate production.

The above is the content related to the composition analysis organized by the core detection team, hoping to help you. Our company has a team of professional engineers and industry elites, and has three standardized laboratories with an area of more than 1800 square meters, which can undertake various test projects such as electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection and tape weaving.