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Then, after 3 years travelling in Europe visiting chemical factories and laboratories
became
Privatdozent
(Assistant Professor) at the Schlesische Friedrich-Wilhelms-
Universität Breslau (now Wrocław/Poland) becoming Extraordinary Professor in
1828. Finding conditions were unfavourable to the development of his experimen-
tal researches moved to Berlin in 1831 and put an end to his academic career. In
1832, he took a position with a chemical works,
Chemische Produkten
-
Fabrik zu
Oranienburg
(near Berlin). Given almost a free hand, in this industrial laboratory,
Runge began the most fruitful period of his life carrying out his important study of
analytical reagents, synthetic dyes and the discovery of coal-tar products [
157
]. The
history of chromatography begins with the work of Runge when he observed that
certain coloured substances when spotted onto a filter paper spread out into con-
centric rings [
158
,
159
], and these he recorded in two topics [
160
,
161
]. He retired
from the firm in 1852 but worked as a consultant until his death.
Heinrich R
ose
(born 6 August 1795, Berlin; died 27 January 1864, Berlin)
was born into a family of scientists, his father and grandfather, both named
Valentin Rose, were pharmacists who wrote on pharmaceutical and chemi-
cal topics [
162
,
163
] (see Fig.
2.20
for his portrait). Rose first trained as a
pharmacist in Danzig (now Gda´sk/Poland) but war against Napoleon inter-
vened. He was in Paris with the occupying army in 1815, whilst there he met
the leading French scientists including Berthollet. On his return to Berlin, he
worked with Klaproth, long associated with the Rose family. He continued
with his pharmaceutical apprenticeship in Mitau (now Jelgava/Latvia), near
Riga. In 1819, he travelled via St. Petersburg and Finland to Stockholm to
work with Berzelius on mica and then on the properties of titanium. Rose left
Stockholm in 1821 and went to Kiel [
24
XII] and submitted his doctoral thesis
on compounds of titanium and then returned to Berlin. In 1822, he became
Fig. 2.20
Portrait of
Heinrich Rose (1795-1864)
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