Document Type and Number:
Japanese Patent JPS6236159
Kind Code:
B2
Abstract:
A mobile phase supplying method in a liquid chromatography which is characterized in a disposition of a second plunger pump unit, in addition to the conventional way of employing one plunger pump unit (a first pump). The second plunger pump unit is disposed in series with the first plunger pump unit, being connected to the suction side of the first pump with the discharge side of the second pump, in order to synchronously supply the same amount of mobile phase discharged from the first pump to the suction side thereof by the second pump for the purpose of preventing the suction side of the first pump from being exposed to an occurrence of negative pressure. The apparatus for realizing the method is provided, in its double-pumped structure, with a connecting rod having on either end thereof a first and second plungers, between both pump units, which are synchronously and coaxially driven by a common driving system.
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Inventors:
KONISHI HIDEKI
SUGAWARA MICHIAKI
SAITO MUNEO
SUGAWARA MICHIAKI
SAITO MUNEO
Application Number:
JP2972879A
Publication Date:
August 05, 1987
Filing Date:
March 14, 1979
Export Citation:
Assignee:
NIPPON BUNKO KOGYO KK
International Classes:
B01D15/08; F04B11/00; F04B13/00; F04B13/02; F04B23/06; F04B49/20; G01N30/32