Injector service life
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If the 5-microliter injection needle used in gas chromatography is used every two hours, how many times can it be used before it becomes unusable? And will its use affect the analysis results? Does this kind of injection needle have a shelf life? Thank you!
It depends on whether the operations are carried out properly, as well as on the sample being tested; under normal conditions, the lifespan is half a year
It depends on how your analysts use it. Normally, it's half a year. However, most fail to meet it. The correct way of use is the first step, while taking good care of it is the second step. If contamination is detected and it can still be used, the injector can be cleaned with acetone
1. The quality of the needle 2. The properties of the sample being injected 3. The injection level and the effectiveness of cleaning 4. The quality of the injection pad and the tightness of its installation. By taking these factors into account, it should be possible to extend the service life of the injection needle