The headspace analyzer needs to pay attention to the following factors

Headspace analyzer is used for the determination of oxygen and carbon dioxide gas content and mixing ratio in sealed bags, bottles, cans and other packaging; It is suitable for quickly and accurately evaluating the gas content and proportion in the packaging in the production line, warehouse, laboratory and other occasions, so as to guide production and ensure that the shelf life of the product can be achieved
.
The following factors need to be paid attention to when selecting a headspace analyzer: 1.
The type
of gas detected.
All current headspace analyzers can detect oxygen levels, but not all devices can detect carbon dioxide levels
.
The current quality of the product can be analyzed by the oxygen content, but the future shelf life of
the product cannot be judged.
Therefore, maximizing the variety of measurable gases is an effective way to
improve the expected accuracy of shelf life.
2.
The volume
of sample gas.
We know that with the development of the trend of packaging miniaturization, more and more independent small packages are emerging, and the volume of gas in the packaging is greatly reduced
.
However, the headspace analyzer's detector must absorb a sufficient amount of test gas to be detected, and if a probe is used for sampling, the probe volume and the volume of the hose connecting the device also need to be taken into account
.
The high volume requirements of the test gas are a major drawback of traditional handheld headspace analyzers, but benchtop devices can solve this problem
by direct injection.
3.
System response time
.
All headspace analyzers seal the probe penetration in the same way, but in fact small leaks begin around the probe penetration and can "contaminate" the test gas in the package, so the length of the system response time will have a certain impact
on the test effect.
4.
Sensor life
.
Generally speaking, the gas sensor of the headspace analyzer is always under the test gas concentration, affected by the test principle of the sensor and the gas content, the sensor has a service life, and can not be extended, then only the sensor can be replaced, so when choosing equipment should also pay attention to the service life
of the sensor.