Helium gas quantification technology is a crucial method used to calibrate the dead volume of the sample tube. This technique ensures accurate measurement by precisely determining the effective volume within the sample tube, which directly impacts the reliability of the test results. Before this advancement, instrument designers relied on manually set volume values in software. However, this approach had several limitations that could lead to inaccuracies:
First, the sample tubes were often handcrafted, making it challenging to maintain consistent volume across multiple units. This lack of precision could introduce errors into the data.
Second, during each test, variations in the material and the amount of sample introduced could change the remaining effective volume of the sample tube. As a result, the fixed-volume method became unreliable under different testing conditions.
Third, when analyzing samples with a low specific surface area, a glass packing column was typically installed inside the sample tube. This added another layer of complexity, as both the sample tube volume and the packing column volume could contribute to errors if not properly accounted for.
By implementing helium gas quantification technology, the effective volume of the sample tube can now be accurately determined in real-time. This improvement significantly enhances the accuracy and consistency of analytical tests, ensuring more reliable results across various applications. The use of helium allows for a dynamic and precise calibration process, reducing the impact of human error and environmental variables. This advancement has become essential in modern analytical instrumentation, particularly in fields where high precision is critical.
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