“…Further progress was realized when Tiselius (1943) introduced a highly adsorbed substance as a displacing agent. These early studies culminated in the mastering of displacement chromatography from both the theoretical (Claeson, 1946(Claeson, , 1949 and methodological points of view (Turner, 1943;Phillips, 1949Phillips, , 1952Clough, 1955). In the period 1950 to 1952 this type of gas chromatography was superseded by the more advantageous elution method.…”