Process and precautions of component analysis and detection

Date：2023-03-15 16:02:22Views：397

Composition analysis plays a very important role in the production process. As long as we can understand the composition and content of materials, we can understand the performance of products, so as to carry out quality monitoring. In addition, composition analysis can also help us find the cause of product performance decline, solve the problems in the production process, quickly find the cause of unknown objects and eliminate hidden dangers, improve product formula, imitate production, etc. This article has collected and collated some materials, hoping to be of great reference value to all readers.

Composition analysis and detection process:

1. First, the physical and chemical indexes (pH, viscosity, acid value, etc.) of the sample shall be tested;

2. The sample was separated and purified to obtain a single component under each character;

3. SEM+EDS can be used to obtain the morphology, particle size distribution, semi-quantitative elements, etc. through scanning electron microscope and energy spectrum, which can provide a reference for subsequent analysis;

4. FITR, infrared spectrum analysis. Through infrared, the sample composition can be obtained directly from the structure of many functional groups;

5. Perform an empty GC-MS. If the sample is an inorganic and organic mixture, the organic component of the sample can be obtained;

6. High resolution ICP-MS. The total element distribution of the sample can be obtained;

7. NMR.

Precautions for composition analysis:

1. The content of effective components is too low, and the corresponding components cannot be obtained during the separation process or polluted by the separation means.

2. There are too many impurities in the sample. During the detection process, impurities will cause misjudgment of the results.

3. There are isomers in the sample, which are difficult to distinguish in terms of detection methods.

4. There are chelates or polymers in the sample, so it is difficult to get the raw material from the analysis results.

5. The product after sample separation cannot match data in the existing database.

6. The analysts are inexperienced and it is difficult to obtain effective information through the atlas.

The composition analysis covers a wide range of fields, including coatings, rubber products, plastic products, oil products, food and drugs, chemical preparations, machinery, metal products, electronics, microorganisms, lighting, furniture, craft gifts and other industries and related products. Chuangxin Testing is a professional testing agency for electronic components. At present, it mainly provides integrated circuit testing services such as capacitance, resistance, connector, MCU, CPLD, FPGA, DSP, etc. Specializing in functional testing of electronic components, appearance testing of incoming materials of electronic components, anatomical testing of electronic components, acetone testing, X-ray scanning testing of electronic components, ROHS component analysis and testing. Welcome to call, we will serve you wholeheartedly!