Notes on the use of gas chromatography
October 31 01:59:45, 2024
1. Injecting samples should pay attention to the problem. Do not hold the needle of the syringe and the sample part, and do not have bubbles (slow, fast discharge and slow suction when sampling, repeat several times, the volume of the metal needle part of the 10ul syringe is 0.6ul, and there are bubbles. I ca n’t see it. Inhale 1-2ul more and move the tip of the syringe up to the top of the bubble to push the needle to remove the bubble. (Referring to the 10ul syringe, with a flat feel of the core syringe). The injection speed should be fast (but not very fast). Keep the same speed for the second injection, and the needle tip to the middle of the vaporization chamber to start the injection of the sample.
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