Discontinuous carrier gas flow procedure

There is sometimes a tendency to call the above procedure dynamic , continuous flow or chromatographic (although no chromatographic effect is studied here). To avoid confusion with the case where a continuous adsorption takes place (which is dealt with in the next section), we prefer to refer to it as a discontinuous carrier-gas flow procedure . 

The discontinuous gravimetric procedure 68 The discontinuous carrier gas flow procedure 69... 

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