Product Introduction:

1、 LC-501 high-pressure constant flow pump is widely praised by users as a product
1. This upgrade continues the classic reciprocating parallel pump design, with the characteristics of high flow accuracy and low pressure pulsation. Under the same infusion volume, the service life of the sealing ring is twice as long as that of the series pump.
2. The unique one-way valve design consists of a valve core body, a gemstone ball seat, and a gemstone ball, forming an integrated structure with the advantages of simple structure and good sealing, which improves the flow accuracy of the pump and the testing accuracy of the system.
3. This upgrade adds an automatic retraction function for the plunger rod, making it easy to replace the sealing ring without opening the chassis.
4. Adopting fully imported pipelines and fittings, it has excellent interchangeability and can minimize abnormal operation caused by the pump's pipeline system.
5. For users who use buffer salt systems, a liquid phase pump with post column cleaning function has been specially launched, featuring a dual sealing ring design. It can delay the wear of the sealing ring and extend its service life.
6. Add a semi prepared pump and a four-way low-pressure system for users to choose from. .

2、 LC-501 UV detector
The upgrade of the spd-501 ultraviolet detector incorporates the design concept of ultra-high pressure and ultra fast liquid chromatography, which minimizes distortion caused by system errors.
1. The fully digital switching system avoids signal distortion and interference caused by multiple analog-to-digital conversions required for chromatographic signals in general UV detectors.
2. The circulation pool adopts a patented design with parallel double tapered holes, which significantly improves the signal-to-noise ratio compared to traditional circulation pools and achieves better detection results.
3. The deuterium lamp has been fully upgraded to a 2000 hour imported deuterium lamp, which has a longer service life and provides greater detection sensitivity.
4. Newly launched optional tungsten lamp light source, fully covering the visible light detection range

3、 Chromatography workstation
New LC-501The WS-100 workstation software equipped in the system is different from traditional analog signal workstations in the past. In addition to being able to collect and process data, it can also comprehensively control the various configurations of instruments, achieving fully automated integration of the system.
1 . Gradient elution: Users only need to input the ratio, flow rate, and change time of various mobile phases in the corresponding list to easily and accurately achieve gradient elution operation. In addition, the software also provides corresponding pump flow curves for users to verify gradient settings and enable them to have a more intuitive understanding of the gradient operation process.
2 . Spectral scanning: In order to test deuterium lamps, the software provides the function of spectral scanning. Firstly, users can intuitively detect the intensity of deuterium lamps at different wavelengths, and based on this, determine whether it is necessary to replace the deuterium lamps. Secondly, the accuracy of wavelength indication error can be determined by the positions of 486.6nm and 656nm on the spectrum.
3 . Wavelength scanning: The wavelength scanning function provided by the software has a range of 180-680nm with a minimum step size of 1nm. It can help users clearly understand the absorption of different wavelengths of ultraviolet light by the sample, so that users can use different detection wavelengths for different samples to achieve the best analysis results..
4 . Event relay: an event relay controlled by a time program, which can achieve various functions required by users, such as switching the steering valve to achieve separation, recovery, and equal flow. These functions cannot be implemented on current popular workstations.

4、 Column thermostat (optional)
LC-501 adopts an integrated design of temperature control part and solvent tray, which is more practical in function and more aesthetically pleasing in appearance; Two chromatography columns can be placed simultaneously, which can meet the requirements of tandem analysis of chromatography columns.

Technical Specifications:

1、 Basic technical specifications of LC-501 high-pressure constant current pump:
Flow range: 0.001-9.999ml/min. Adjust the flow rate in 0.001ml/min steps.
Flow stability error Sr: less than 0.3%
Flow setting error Ss: less than ± 2%
Maximum working pressure: 42MPa (0.001-9.999ml/min)
Pressure linearity and accuracy: display pressure error less than ± 0.5 MPa (0-42 MPa)
Pressure pulsation: less than 0.1MPa (flow rate 1ml/min, pressure 5-10MPa)
Sealing performance of pump: pressure is 42MPa, time is 10min, pressure drop is less than 0.5MPa
Dimensions: 450mm x 300mm x 160mm (length x width x height)

2、 Basic technical specifications of LC-501 ultraviolet detector:
Wavelength range: 190-680nm
Baseline noise: ≤ 2 × 10-5AU peak to peak (methanol, 1ml/min, 254nm, 20 ℃)
Baseline noise: ≤± 0.25 × 10-5AU (empty pool, response time 1 second, 20 ℃)
Baseline drift: ≤ 2 × 10-4AU/hr (methanol, 1ml/min, 254nm, 20 ℃)
Baseline drift: ≤ 0.4 × 10-4AU/hr (empty pool, response time of 1 second, 20 ℃)
Minimum detection limit: ≤ 5 × 10-9g/ml (naphthalene/methanol solution)
Wavelength indication error: ≤± 2nm
Wavelength repeatability: better than 0.1nm
Spectral bandwidth: 8nm
Linear range: better than 104
Flow pool volume: 8 µ L
Optical path length: 8mm
Dimensions: 450mm x 300mm x 160mm (length x width x height)

3、 Main technical indicators of LC-501 column constant temperature box:
Temperature control range: 5 ℃ to 80 ℃ at room temperature
Temperature setting range: 10 ℃~80 ℃ (1 ℃ step)
Temperature control accuracy: ± 0.1 ℃