L75 liquid chromatography instrument

LThe 75 liquid chromatography instrument is a fully Chinese operating interface, reliable performance, and high sensitivity UV visible variable dual wavelength analysis instrument. The processing and customization of the central components are completed in the United States.

L75 liquid chromatography instrumentStable liquid flow, high-quality imported optical components, ultra-low noise, and quality provide you with reliable analysis results. Powerful anti control software, data processing and reporting functions can flexibly respond to any requirements of analytical work.

1. Adopting electrical dump control technology and electronic cam technology to control flow pulsation, effectively ensuring the accuracy and repeatability of flow, and ensuring low baseline noise; The one-way discharge volume is 30ul.

Flow range: 0.0001-99.999 ml/min, incremental 0.0001ml/min; Flow precision: 0.1% or 1ul/min, flow repeatability: RSD=0.05%.

Detection system: Simultaneously install deuterium lamp and tungsten lamp, which can automatically switch to full wavelength scanning; Dual wavelength detection, wavelength time programming;

Wavelength range: 188nm-900nm, increment of 1nm, spectral bandwidth of 8nm.

Gradient mixing precision: 0.1% or 1ul/min, gradient mixing repeatability: RSD=0.1%, injection repeatability: RSD=0.1%. Sensitivity: ≤ 2 × 10-10g/ml naphthalene in methanol solution.

Reverse control workstation: The workstation can set and control all instrument parameters and automatic samplers, automatically track all liquid chromatography critical parameters, and prompt users when interference and errors occur. The online guidance system automatically detects and facilitates maintenance; Equipped with three-level management and audit tracking functions, fully compliant with CFDA GxP and FDA 21CFR-Part11 requirements; When measuring with dual wavelengths, output a proportional chromatogram and obtain the component content through a built-in algorithm;

2. Long sealing ring service life, multi-point flow correction curve, ensuring flow accuracy throughout the entire flow range;

3. The design of plunger suspension transmission technology ensures the service life of high-pressure sealing rings. Adopting a dual plunger parallel pump structure, the dual pump heads alternate infusion. Under the same infusion volume, the lifespan of the piston rod and sealing ring is twice as long as that of a series pump;

4. The automatic plunger cleaning function can clean the back of the plunger and plunger sealing ring, preventing the sealing ring from shortening its service life due to the crystallization of high salt concentration buffer solution;

5. GLP function pressure curve, flow curve, record the number of times the plunger rod seal ring is used. Pressure pulsation:=0.1%, maximum withstand pressure:=45 Mpa (ASI pump head);

6. The dual path optical system can achieve dual wavelength detection;

7. The monochromator adopts high-precision control to improve wavelength accuracy;

8. New wavelength automatic calibration. Wavelength accuracy: 0.1nm, wavelength repeatability: 0.1nm. Noise:=0.25 × 10-5 AU. Drift:=0.5 × 10-4 AU. Flow cell volume: 10ul;

9. Multi mode wavelength scanning: 3 scanning modes, wavelength programmable;

10. The LCD screen displays all parameters, which can be set either through the instrument itself or through the reverse control workstation. 99 user programs that can achieve flow, gradient, and wavelength programming;

11. Open source computer anti control communication protocol for third-party software interface, facilitating third-party software control