Abstract
The different ways of GLC determination of trace impurities using phase equilibria of the objects under investigation (head-space analysis and determination of impurities in a gas using the data of their content in the liquid saturated with this gas) are discussed and compared. The limits of application and the possible source of errors of each of these methods are discussed. Examples for application of the method of equilibrium concentration for GLC analysis of impurities in food, waste water, air and biological objects are given.
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