【Daily Question】2018.7.18
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Multiple-choice question: When analyzing a sample using a gas chromatograph, no peaks appear; it has been preliminarily determined that the problem lies in the gas path system. Which of the following aspects should be checked and evaluated? ( ) A Check the cylinder pressure and flow rate at the column outlet. B Inspect all connections for leaks. C Replace the sampling gasket to see if peaks appear. D Check switches ABC
A Check the cylinder pressure and the flow rate at the column outlet. B Inspect all connections for leaks. C Replace the sampling gasket to see if peaks appear
A Check the cylinder pressure and flow rate at the column outlet. B Inspect all connections for leaks. C Replace the sampling gasket to see if a peak appears. D Check the switch
A Check the cylinder pressure and the flow rate at the column outlet. B Perform a leak test on all connections. C Replace the injection septum to see if any peaks appear