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Extraction Gas Analyzer, its Advantages and Disadvantages

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Extraction Gas Analyzer, its Advantages and Disadvantages

Extractive gas analyzer is a gas analysis technology. Its working principle is based on extracting the target gas components from the gas sample, converting them into liquid or solid form, and then analyzing the extracted substances to determine the content of the target gas. This method is often used in gas analyzers scenarios where high sensitivity and accuracy are required.


Advantages


  • High sensitivity:

The extraction process can be better controlled in a laboratory setting, so high analytical sensitivity can be achieved, capable of detecting very small concentrations of target gas components.


  • Sample pretreatment:

The extraction process can usually remove interfering substances in gas samples, such as other gas components, particulate matter, etc., thereby improving the accuracy and reliability of the analysis.


  • Widely applicable:

Extractive gas analyzers are suitable for applications that require high precision and accuracy, such as environmental monitoring, food safety, medical diagnosis, etc., especially in scenarios where trace gas components need to be analyzed.


  • Sample Stability:

The extraction process converts the gas sample into a liquid or solid state, which can improve the stability of the sample and reduce the analysis error caused by the gas fluctuation.


Read full blog: https://esegas.com/extractive-gas-analyzers-vs-in-situ-gas-analyzers-a-comparison-of-technical-principles-and-applications/


Shortcoming:


  • Time delay:

Since the extraction process takes time, there is a certain time delay in the analysis results, which is not suitable for scenarios that require real-time monitoring, such as certain industrial process control.


  • Complexity:

The extraction process can be complex and requires expertise and equipment. This increases operational difficulty and equipment maintenance costs, which may limit the application of this technology in some scenarios.


  • Sample loss:

There may be a certain degree of sample loss during the extraction process, which affects the accuracy of the analysis.


  • Not suitable for some gases:

Because of the chemical reactions involved in the extraction process, some gases may not be suitable for this method of analysis, or require special handling steps.


On the whole, extractive gas analyzers have great advantages in applications that require high precision and accuracy. However, it is necessary to weigh its advantages and disadvantages according to specific application scenarios and requirements, and choose an appropriate analysis method.

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