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First, the definition of moisture analyzer:
Moisture analyzer is used to quickly determine the moisture content of the material, can provide real-time temperature, sample quality, dehydration rate, sample moisture percentage.
Second, moisture analyzer classification and its main applications:
With the development of scientific research and the advancement of production technology, the quantitative analysis of moisture has been listed as one of the basic items for physical and chemical analysis of various substances, and it is an important quality indicator of various substances. Different requirements for the determination of moisture were proposed according to the different moisture contents in the different types of samples. Moisture measurement can be industrial production control analysis, or the signing of the quality of industrial and agricultural products; moisture can be measured from tons of product, and only a few microliters of test solution can be used for moisture analysis in the laboratory; A constant moisture analysis of several to several tens of tens of thousands of water, or a trace moisture analysis with a water content of only one millionth or less.
Water analysis methods can generally be divided into two major categories, namely physical analysis and chemical analysis. The classical moisture analysis method has been gradually replaced by various moisture analysis methods. Currently, the main moisture analyzers on the market are Karl Fischer moisture analyzer, infrared moisture analyzer, dew-point moisture analyzer, microwave moisture analyzer, and Coulomb. Moisture meter, as well as some dedicated moisture analyzers. These instruments are simple, sensitive, and reproducible. They can measure continuously and automatically display data.
Foreign moisture analyzers have certain advantages in terms of accuracy, stability, etc., but they are expensive, and they cannot be afforded by some domestic laboratories and enterprises. In recent years, many domestic instrument manufacturers have strengthened the research and practice of moisture analyzers, and have achieved very significant benefits, bringing the various technologies of domestic moisture analyzers closer to international standards and meeting the needs of general laboratories and enterprises.
The Karl Fischer method is a classical method. After improvements in recent years, it has greatly improved the accuracy and expanded the measurement range. It has been listed as a standard method for moisture determination in many substances. In recent years, the imported Karl Fischer moisture analyzers that are more active in the domestic market include France Reyes, Metrohm Switzerland, Germany METTLER TOLEDO, Germany SCHOTT, Japan Kyoto Electronics, and domestic Karl Fischer moisture analyzers. There are Shanghai Chemicals, pioneer Wei Feng and so on.
The infrared moisture analyzer is simple in operation, less time-consuming, and accurate in measurement results. Therefore, the infrared moisture analyzer can be widely used in laboratory analysis, daily stock control, and process detection in chemical, pharmaceutical, food, tobacco, food, and other industries. Major manufacturers include the United States Omnimark, the United States Fisher, the United States Raytek, the United States omnimark, Germany Sartorius, Japan Kett and so on.
The dew-point moisture analyzer is easy to operate, the instrument is not complicated, and the measured results are generally satisfactory. It is often used for the determination of trace moisture in permanent gas. However, this method interferes more. Some cold-changeable gases, especially at higher concentrations, interfere with condensation than water vapor. Manufacturers include Shaw, UK, AMETEK, and others.
Coulomb moisture meters are often used to determine the moisture content of gases. This method is easy to operate, quick to respond, and especially suitable for the determination of trace moisture in gases. If you use ordinary chemical methods, it is very difficult. However, electrolytic methods are not suitable for the determination of alkaline substances or conjugated diolefins. Manufacturers include Chengdu Instrument Factory, Daqing Rishang and so on. The microwave moisture analyzer uses a microwave field to dry the sample to accelerate the drying process. It has the characteristics of short measurement time, convenient operation, high accuracy and wide application range. It is suitable for grain, paper, wood, textile and chemical products, etc. The determination of moisture in powdered and viscous solid samples can also be applied to the determination of moisture in petroleum, kerosene and other liquid samples. Manufacturers include the United States CEM company, the United States Omnimark company.
In addition, some dedicated moisture analyzers have become increasingly prominent in the market. This moisture analyzer has the advantages of specificity, simple operation, etc., and is widely used for on-line control and analysis of industrial production. The quality of industrial and agricultural products is checked. Ding, such as oil moisture analyzer, soil moisture analyzer, tobacco moisture analyzer, grain moisture analyzer, wood moisture analyzer, concrete moisture analyzer, paper moisture analyzer, etc.
Moisture analyzer is used to quickly determine the moisture content of the material, can provide real-time temperature, sample quality, dehydration rate, sample moisture percentage.
Second, moisture analyzer classification and its main applications:
With the development of scientific research and the advancement of production technology, the quantitative analysis of moisture has been listed as one of the basic items for physical and chemical analysis of various substances, and it is an important quality indicator of various substances. Different requirements for the determination of moisture were proposed according to the different moisture contents in the different types of samples. Moisture measurement can be industrial production control analysis, or the signing of the quality of industrial and agricultural products; moisture can be measured from tons of product, and only a few microliters of test solution can be used for moisture analysis in the laboratory; A constant moisture analysis of several to several tens of tens of thousands of water, or a trace moisture analysis with a water content of only one millionth or less.
Water analysis methods can generally be divided into two major categories, namely physical analysis and chemical analysis. The classical moisture analysis method has been gradually replaced by various moisture analysis methods. Currently, the main moisture analyzers on the market are Karl Fischer moisture analyzer, infrared moisture analyzer, dew-point moisture analyzer, microwave moisture analyzer, and Coulomb. Moisture meter, as well as some dedicated moisture analyzers. These instruments are simple, sensitive, and reproducible. They can measure continuously and automatically display data.
Foreign moisture analyzers have certain advantages in terms of accuracy, stability, etc., but they are expensive, and they cannot be afforded by some domestic laboratories and enterprises. In recent years, many domestic instrument manufacturers have strengthened the research and practice of moisture analyzers, and have achieved very significant benefits, bringing the various technologies of domestic moisture analyzers closer to international standards and meeting the needs of general laboratories and enterprises.
The Karl Fischer method is a classical method. After improvements in recent years, it has greatly improved the accuracy and expanded the measurement range. It has been listed as a standard method for moisture determination in many substances. In recent years, the imported Karl Fischer moisture analyzers that are more active in the domestic market include France Reyes, Metrohm Switzerland, Germany METTLER TOLEDO, Germany SCHOTT, Japan Kyoto Electronics, and domestic Karl Fischer moisture analyzers. There are Shanghai Chemicals, pioneer Wei Feng and so on.
The infrared moisture analyzer is simple in operation, less time-consuming, and accurate in measurement results. Therefore, the infrared moisture analyzer can be widely used in laboratory analysis, daily stock control, and process detection in chemical, pharmaceutical, food, tobacco, food, and other industries. Major manufacturers include the United States Omnimark, the United States Fisher, the United States Raytek, the United States omnimark, Germany Sartorius, Japan Kett and so on.
The dew-point moisture analyzer is easy to operate, the instrument is not complicated, and the measured results are generally satisfactory. It is often used for the determination of trace moisture in permanent gas. However, this method interferes more. Some cold-changeable gases, especially at higher concentrations, interfere with condensation than water vapor. Manufacturers include Shaw, UK, AMETEK, and others.
Coulomb moisture meters are often used to determine the moisture content of gases. This method is easy to operate, quick to respond, and especially suitable for the determination of trace moisture in gases. If you use ordinary chemical methods, it is very difficult. However, electrolytic methods are not suitable for the determination of alkaline substances or conjugated diolefins. Manufacturers include Chengdu Instrument Factory, Daqing Rishang and so on. The microwave moisture analyzer uses a microwave field to dry the sample to accelerate the drying process. It has the characteristics of short measurement time, convenient operation, high accuracy and wide application range. It is suitable for grain, paper, wood, textile and chemical products, etc. The determination of moisture in powdered and viscous solid samples can also be applied to the determination of moisture in petroleum, kerosene and other liquid samples. Manufacturers include the United States CEM company, the United States Omnimark company.
In addition, some dedicated moisture analyzers have become increasingly prominent in the market. This moisture analyzer has the advantages of specificity, simple operation, etc., and is widely used for on-line control and analysis of industrial production. The quality of industrial and agricultural products is checked. Ding, such as oil moisture analyzer, soil moisture analyzer, tobacco moisture analyzer, grain moisture analyzer, wood moisture analyzer, concrete moisture analyzer, paper moisture analyzer, etc.