Research and developments of the 1940s
In 1941 appeared several works of G. Hesse, who is considered the first to use a carrier gas [17–20], and Claesson, who is viewed by many as the father of the displacement method,. In 1941, Hesse described [18] his first experiments on applications of gas chromatography. A stream of nitrogen with bromine and iodine vapors was fed through a starch-filled tube, and a bromine-containing brown and iodine-containing blue bands could be observed. In addition, preparative separation of certain esters not amenable to separation by distillation was carried out, with silica gel used as the stationary phase and carbon dioxide as the mobile phase. The device was rather simple, as illustrated in Fig. 2 [19]. The history of this work, described by Hesse himself in [20], is curious. Then it was not rare to hear that gas chromatography has no prospects. Meanwhile, Hesse always recalled the words of Hans Meerwein, a venerable scientist, to his young colleagues: “The poor man is too educated. As soon as he has an idea, he immediately knows why it should not work and, therefore, he never tries anything”. Hesse was brave enough to try the “impossible.” The thought of replacing a liquid with a gas seemed only natural, and he began to prove it.