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Maintenance of the headspace sampler:
1. Lining: The liner mainly functions as a sample vaporization chamber in the GC hplc vials manufacturer in china. The sample is vaporized in the liner and brought into the gas phase. There are deactivated and non-deactivated parts, and there are also split/distributed and splitless. , shunt, direct injection, direct connection, focus, PTV and many other points. Irregular replacement or improper use can result in poor peak shape, solute discrimination, poor reproducibility, sample decomposition, and ghost peaks. The maintenance of the liner is mainly cleaning, silanization and rational use of glass wool.
2, septum: mainly to seal injection, cleaning the role of the needle, the general septum can reach more than one hundred injections of life, different manufacturers of different materials life, such as AgilentBTO (temperature and loss treatment) The mat can last more than 400 times, and the red silicone septum is generally one hundred times hplc vials manufacturer in china. If the inlet pressure is found to be degraded, check whether the septum is severely worn, the sealability is deteriorated, and if necessary, replace it. Separator debris can cause the background to rise, and it can contaminate the liner, block the column, and should be replaced frequently, without having to wait for non-replacement. Many color friends are generally tightened too much in the installation and replacement of the septum, which will cause the septum to shrink and harden too much. When the septum is injected, the septum is prone to chipping, and the life is greatly reduced. Generally, it is tight without leaking hplc vials manufacturer in china.
This is the end of the introduction of How do you maintain the headspace sampler in peacetime. I hope it can help you.
