Products
Liquid chromatograph LC-4000B
Main features of the LC-4000 B pump – high precision, stability and efficiency. The experience and technology gained from the extensive use of the LC-4000 B pump in various areas of analytical chromatography is used to develop new technologies, allowing continuous expansion...
Description
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Main Features
Pump LC-4000 B - high precision, stability and efficiency.
The experience and technology gained from the extensive use of the LC-4000 B pump in various areas of analytical chromatography is used to develop new technologies, allowing for an ever-expanding range of functions required for carrying out experiments.
Specifications
The static motor control circuit, developed with its own patented technology, provides the function of automatically tracking the motor control signal, which effectively improves the motor control accuracy and guarantees the reliability and stability of the pump.
Pump type: double piston piston, operating in series or parallel mode.
Patented floating self-calibrating O-ring technology and self-cleaning pump head feature extends O-ring life for long life and high efficiency (online piston seal cleaning (optional)
Convenient and easy to use flow and pressure calibration function ensures high accuracy and stability of the device.
Two programs for working with gradients are used: linear and step;
Programmable solvent and compression ratios provide automatic compensation.
A complete pre-flush function makes it easy to quickly change solvents.
Technical characteristics of the analytical pump LC-4000
Flow range 0.001-10ml/min (adjustment step 0.001mL/min)
Flow accuracy ±1% or 2uL/min (0.001－10mL/min)
Maximum working pressure 42.0MPa; possibility of setting upper and lower limits, automatic alarm
Flow accuracy ±1% or 2uL/min (0.001－10mL/min
Flow precision: 0.3%
Gradient: 2-component or 3-component
Gradient mode: Auto-controlled gradient elution via built-in software, control possible via PC and pump
Power supply: AC 110V/220V，50Hz/60Hz
Overall dimensions: 400mm×300mm×180mm
Main Features
Using holographic double grating technology, convenient and fast programming of time and wavelength
Adopting high-precision photodiode design, extended linear range
Convenient, fast and unique auto-calibration function for light intensity gain
Unique gallium glass cuvette design, full spectral scanning, convenient and accurate wavelength calibration
Universal cuvette design, convenient replacement between cuvettes for microdoses and standard doses
Simple and quick replacement of the deuterium lamp, can be used without calibration
Main technical characteristics
Detector
Light source: deuterium lamp/tungsten lamp
Optical path design: monochromator with dual-channel silicon photodiode detector
Linear Range: 2.8AU (5%)
Wavelength range: 190-700nm, 1nm step
Wavelength repeatability: ±0.2nm
Wavelength accuracy: ±1nm
Spectral bandwidth: <6nm
Absorption Range: 0.0005AU/mV-4AU/mV
Data system output: 4AU/V input signal control, automatic zero adjustment, support dual channel output to integrator and recorder
Background line noise: ≤±0.5×10-5AU (empty cell, 254nm, 1.0s)
Background line drift: ≤2×10-4 AU (empty cell, 254nm, stabilized for 60min))
Minimum detectable concentration: 2×10-9 g/mL (naphthalene solution in methanol)
Cuvette: analytical cuvette (light path length 10mm, volume 10.0ul)
Power supply: AC 110V/220V，50Hz/60Hz
Dimensions: 400mm×300mm×180mm
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