1. Paul Salverda Paul Salverda United States says:

    There are a number of mistakes.  Hydrogen is not an inert gas.  GC column separation is not only by boiling point or vapor pressure. She mentions gas/liquid partitioning herself, which should lead to talking about the wide variety of GC column stationary phases that are necessary for the diversity of GC applications. GC is not only for volatile compounds as separation of gases is a typical application. Many non-volatile compounds can also be derivatized before analysis.  GC methods are only some few seconds to many minutes long. Any solvent that vaporizes can be used, not only the two mentioned.   An LC specialist should talk about all the mistakes in that part of the article.

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