This instrument is a liquid delivery unit for liquid chromatography using a parallel double
plunger reciprocating-type pump developed to improve the precision and sensitivity of
analysis.
By pumping alternately from two pump heads arranged in parallel, it can perform
continuous pumping. The stepping motor's torque is transmitted to the cam, causing the
plungers to perform a piston motion.
1.1
Features
n Low Flow Pulsation and Pulsation Period Enable Precise Delivery
By reducing the discharge volume per plunger stroke to the microvolume level (10 µL),
and applying high-speed drive, the flow pulsation and pulsation period have been
reduced to levels significantly lower than those for other instruments.
n Choice of Gradient Modes and Control Options
LC-40D X3 CL/LC-40D XR CL can be used in both low- and high- pressure gradient modes.
The high-pressure gradient mode uses two pumps and is highly accurate with minimal
time lag. In low-pressure gradient mode, a single pump unit plus the gradient unit
provides a low cost option to combine up to four solvents.
There are two gradient modes available: fast LC mode or normal mode under control of
the system controller.
The fast LC mode for binary high-pressure gradient delivery supports ultra high speed
high separation analysis with minimized gradient control steps.
n Automatic Plunger Rinsing
An automatic rinsing kit is provided as standard for LC-40D X3 CL/LC-40D XR CL . It can
rinse the plunger in the back of the plunger seal. When high-salt-concentration buffer
solutions are used, in particular, it prevents premature seal failure due to crystallization,
extending the service life of plunger seals.
n High-pressure Flow is Available
LC-40D X3 CL enables ultra high pressure solvent delivery up to 130 MPa supporting ultra
fast high separation analysis in combination with Shim-pack XR-ODS III or other ultra fast
high separation columns. For LC-40D XR CL, high-pressure solvent delivery up to 70 MPa
is possible so high speed high separation analysis is supported in combination with
Shim-pack XR-ODSⅡcolumns.
1
Overview
LC-40D X3 CL LC-40D XR CL
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