The only difference between a small gas phase liquid nitrogen tank and a traditional liquid nitrogen tank is the storage mode!
Different storage modes
There are two storage modes for small gas phase tanks, gas phase and liquid phase.
The gas phase uses low-temperature nitrogen evaporated from liquid nitrogen to preserve biological samples for a long time. This preservation method does not come into direct contact with liquid nitrogen and can avoid the risk of sample cross-contamination.
In the liquid phase, the sample is completely immersed in liquid nitrogen at -196°C and in direct contact with liquid nitrogen.
Two modes can be selected according to different sample requirements.
The advantage of gas phase tanks is that they are easy to use and operate, while the disadvantage is that they are more expensive to maintain.
There is only one storage mode for traditional liquid nitrogen tanks, which is the liquid phase - the sample is completely immersed in liquid nitrogen.