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2026/07/24Clicks：8
In atmospheric monitoring and environmental measurement systems, maintaining sample integrity is essential for achieving accurate analytical results.
When measuring trace gases such as carbon dioxide (CO₂) and methane (CH₄), even small contamination sources from the sampling system can affect measurement accuracy.
For this reason, the selection of tubing materials plays an important role in gas sampling applications. Tubing with low outgassing characteristics, low adsorption, and excellent chemical stability is often required.
For an atmospheric monitoring application, CJan Fluid Technology Co., Ltd. provided a PFA tubing solution designed for high-purity gas sampling and transportation, helping meet the requirements of low contamination and stable gas analysis.
The customer specializes in:
Environmental monitoring systems
Atmospheric measurement equipment
Meteorological analysis solutions
The application involves collecting and transporting atmospheric gas samples for precise composition analysis.
The system is used for monitoring trace-level greenhouse gases, including:
Carbon dioxide (CO₂)
Methane (CH₄)
Because the measured concentrations are extremely low, the gas transfer path must minimize external influence.
Environmental Monitoring
Atmospheric Research
Meteorological Measurement
Atmospheric gas sampling
Trace gas analysis
Flow rate:
1 L/min
Measurement requirements:
CO₂ concentration variation: less than 100 ppb (volume fraction)
Methane concentration variation: less than 1 ppb
The customer required tubing with:
Low outgassing performance
Low adsorption characteristics
High cleanliness
Stable gas transmission performance
In high-precision gas measurement systems, the sampling tubing is not only a connection component. It directly affects the quality of the gas sample delivered to the analyzer.
Unsuitable tubing materials may introduce several challenges.
Certain materials may absorb or retain gas molecules on the internal surface.
This can lead to:
Delayed response time
Reduced measurement consistency
Potential concentration deviation
For trace gas analysis, minimizing interaction between the tubing material and sample gas is critical.
Some polymer materials may release trace volatile substances during operation.
These substances can:
Increase background levels
Interfere with analysis results
Reduce measurement reliability
Therefore, environmental monitoring systems often require tubing materials with excellent purity characteristics.
Based on the application requirements, CJan Fluid Technology Co., Ltd. recommended:
PFA (Perfluoroalkoxy alkane) tubing is widely used in applications requiring chemical stability and high cleanliness.
Its material properties make it suitable for:
Atmospheric sampling systems
Gas analysis equipment
Environmental monitoring instruments
Laboratory analytical systems
PFA provides excellent purity characteristics with very low extractables and outgassing levels.
This helps reduce:
Sample contamination
Background interference
Measurement uncertainty
which is especially important for trace gas analysis.
The smooth and chemically inert inner surface of PFA tubing helps minimize interaction with transported gases.
Benefits include:
Reduced sample loss
Improved response stability
Better repeatability
PFA has outstanding resistance to chemicals and environmental conditions.
It maintains stable performance when exposed to:
Atmospheric gases
Humidity variations
Chemical contaminants
Compared with conventional tubing materials, PFA offers:
Excellent aging resistance
Stable physical properties
Long service life
making it suitable for continuous monitoring equipment.
By selecting PFA tubing for the atmospheric monitoring system, the customer achieved:
The low contamination characteristics of PFA help maintain the original gas composition during transfer.
Reduced material interaction helps minimize potential measurement errors.
PFA tubing provides consistent performance for continuous environmental monitoring applications.
The customer required a tubing solution for atmospheric gas monitoring with strict measurement requirements.
Application conditions:
Flow rate: 1 L/min
CO₂ concentration variation: <100 ppb
Methane concentration variation: <1 ppb
Application: Atmospheric environmental monitoring
After evaluating the application requirements, CJan Fluid Technology Co., Ltd. recommended high-purity PFA tubing as the gas transfer solution.
With excellent low outgassing performance, low adsorption characteristics, and chemical stability, PFA tubing provides reliable support for high-precision atmospheric gas measurement systems.
CJan Fluid Technology Co., Ltd. specializes in high-performance fluid transfer solutions for advanced industries.
Our products are widely used in:
Semiconductor
Environmental monitoring
Pharmaceutical
Chemical processing
Laboratory equipment
New energy industries
Through professional material selection and application experience, CJan provides customized tubing solutions for demanding fluid and gas handling systems.
Accurate atmospheric monitoring depends not only on advanced analytical instruments but also on reliable sample handling systems.
For trace gas measurement applications involving CO₂ and methane analysis, selecting low-outgassing and chemically stable tubing materials is essential.
PFA tubing provides an effective solution for high-precision gas sampling systems by helping maintain sample purity and measurement reliability.
CJan Fluid Technology Co., Ltd. continues to support global environmental monitoring and analytical equipment manufacturers with reliable fluid transfer solutions.
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