What are the skills of purchasing a gas chromatograph?
Some people think that these indicators seem to be detectors. Yes, but as stated earlier, the conditions are to be compared throughout the loop and in the system. For example: the pulse of the pump will directly affect the noise index, pump flow accuracy, accuracy indicators, as well as poor sealing, will affect the relevant indicators. So watch the metrics systematically.
The first is how to look at indicators. There are many indexes in liquid chromatograph, such as pump, detector, chromatographic column and so on. To see the main technical indicators, according to national standards, the main indicators of the instrument are noise, drift, minimum detection concentration, qualitative, quantitative, repeatability, etc.. These indicators should be placed in the system, loop to see, to compare.
Qualitative, quantitative, repeatability is mainly to check the stability of the instrument indicators, which is very important for the analysis of samples. The stability of a good instrument should be excellent, which requires repeated sampling, retention time and consistency of content. The results can be convincing.
