Technical parameters:
Its main performance indicators are as follows:
1. Low pressure gradient flow control range: 10mL/min (analytical type); 100mL/min (semi prepared type); ²
2. Accuracy of low-pressure gradient flow: ± 3% (analytical type); ± 5% (semi prepared type);
3. Display: Four digit number; ²
4. External interface: RS232 or USB; ²
5. Mixing volume: 800 μ L.

Main features:
1. Adopting a four in one out high-quality fast response solenoid valve to ensure the accuracy and stability of the mobile phase composition, a flexible 2-4 element low-pressure gradient chromatographic analysis system can be realized;
2. The independently developed and designed "Integrated High Precision Proportional Flow Path Control System Software" reduces the step size of the composition change of the mobile phase to 0.1%, improves the accuracy of the mobile phase ratio, and effectively reduces the switching period of the mobile phase, ensuring the uniformity and stability of the mobile phase; As shown in Figure 1-2, the actual test results.
3. The innovative "proportional flow path control automatic adjustment system" ensures the accuracy of mobile phase distribution at higher and lower flow rates, while extending the service life of the solenoid valve;
4. The brand new "static mixing design after the pump" ensures fast and uniform solvent mixing, guarantees the reproducibility of analysis results, and reduces baseline noise;
5. Equipped with a four element online deaerator, it can achieve continuous online deaeration, ensuring accuracy and repeatability of use;
6. Configure a diode array detector, which is powerful and convenient for qualitative and quantitative analysis of samples;
7. It can be upgraded to semi preparative or preparative chromatography.