Product Description1.        The operating system is flexible and simple, allowing users to customize the configuration of hardware and software to meet a variety of purification needs.2.        Dual plunger and binary gradient infusion pump and imported PEEK pump head to ensure high precision and reproducibility during the separation and purification process.3.        Imported DAD full-spectrum detector is used for the UV detection, which has high wavelength precision and good repeatability. Dual channel simultaneous detection is to improve the convenience of detection.4.        External UV detector flow-through cell, low dead volume and low peak width, improve chromatographic resolution.5.        High sensitivity pH, conductivity, and UV detectors to improve chromatographic resolution.6.        Equipped with pressure alarm and bubble sensor detection functions to improve system security and effectively protect chromatography column.7.        The chromatography workstation is provided with computer and software, with powerful functions and advanced performance, which can efficiently and stably manage the chromatographic data. The functions of software comply with the relevant regulations of the CFDA and meet the requirement of the data traceability and security in the pharmaceutical industry. 8.        The instrument host and the collector can be stacked to effectively save space, the collector was a closed space to effectively prevent sample contamination. Technical Parameters     ModelUEV 25DUEV 25LSystem pumpMaterial qualityDual plunger and   binary gradient infusion pump, imported PEEK pump head, biological inert   materialFlow rate range0.001-25.000   mL/minFlow precision 1 ‰Flow accuracy±1 %Flow rate reproducibility＜0.5 %（RSD）Dynamic mixer2 mLPressure0 - 20 MPaFunctionFlow rate and   ratio can be modified online, supports linear and gradientUV detectorLightImported   deuterium lampLED Flow-through   cell2 mm Wavelength range200-400 nm,   simultaneous detection of dual channels280nm fixed   wavelength detectionWavelength   accuracy±1 nm±1 nmWavelength   reproducibility±0.5 nm/drift1×10 -3   AU/Hr/noise±4×10 -5   AU（@1s）±2×10 -5   AU（@1s）pH detectorrange：0-14，accuracy：±0.1（@pH=2-12）NoConductivity   detectorrange：0.001-999.99   mS/cm，accuracy：±1%Compensation   for conductivity and temperatureTemperature   SensorBuilt-in   conductivity, 0-100 degrees, accuracy: ± 1 degreeOnline filterFilter buffer   for protectionMobile phase   selection moduleFour channels，A1/A2，B1/B2Injection valveAutomatic   sampling valve, software control, support Load / Inject / Waste functionBubble sensorPrevent bubbles   from entering the system and protect the columnTwo-channel   collection valve1 collection, 1   waste outletFraction   collector1.5 mL and 5 mL   10 × 10 square matricesChromatography   workstation21.5 inch All-in-one   PC, win10 operation systemToolkitIncludes PTFE /   PEEK tubing, column clamps, operating manuals, tubing connectors, common   tools, etc.Software   functionsReal-time online   monitoring of UV, pH, conductivity, temperature and pressureReal-time online   monitoring of UV, conductivity, temperature and pressureReal-time   modification of flow rate and gradientMethod editing   interface supports UI+Text modeSupport Chinese   and EnglishMeet relevant   CFDA regulationsFree software  upgradesSome customers of UNION protein purifier:Shanghai light sourceEast China Normal UniversityTianjin Medical UniversityBeijing University of Chemical TechnologyTsinghua UniversitySichuan University