gradocoln.
/ˈɡradəʊkɒl/ Used attributively in gradocol membrane: a membrane made by the controlled evaporation of a collodion solution, having a high uniformity of pore size and used as a filter, esp. for viruses.
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the world > life > biology > laboratory analysis > apparatus > [noun] > other apparatus
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air bath1848
compressor1881
Berkefeld1891
incubator1896
catchwater1901
ultrafilter1908
fermenter1925
gradocol membrane1931
roller tube1933
Tiselius (electrophoresis) apparatus1939
sonicator1952
Sonifier1961
cytocentrifuge1966
lyophilizer1967
biochip1980
1931 W. J. Elford in Jrnl. Pathol. & Bacteriol. 28 507 I propose to refer to these new membranes as gradocol membranes, since they are products of a graded coagulation of collodion.
1953 A. J. Rhodes & C. E. van Rooyen Textbk. Virol. (ed. 2) i. ii. 12 Suspensions of virus particles are filtered through a series of ‘gradocol’ membranes of varying degrees of porosity, and the filtrates tested for the presence of virus.
1964 G. S. Wilson & A. A. Miles Princ. Bacteriol. & Immunity (ed. 5) i. xl. 1166 In estimating the size of virus particles ultrafiltration through Gradocol membranes is widely used.
This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020).
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n.1931