Gas Chromatography
Which of the statements is correct?

Gas chromatography is used to analyse gases
All of these
Gas chromatography is used to analyse solids
Gas chromatography is used to analyse gases, solutions and solids

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Gas Chromatography
Sample injection is considered successful if

all of the sample in the injector has been added to the column
the sample is homogenously spread along the column
the sample is spread evenly along the column
the sample is concentrated at the start of the column

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