1. Quaternary Low-Pressure Gradient Pump
Maximum Pressure Resistance: 9000 psi (62 MPa)
Flow Rate Range: 0.001 – 10.000 mL/min (adjustable in 0.001 mL/min increments)
Flow Rate Accuracy: ≤0.06% RSD (per ASTM standards), ±0.2% absolute
Pressure Pulsation: ≤1% for stable baseline and sensitive detection
Gradient Accuracy: ±0.5%
Gradient Repeatability: ≤0.1% — ensuring run-to-run consistency
Plunger On-Line Cleaning: Standard feature with high/medium/low speed options to extend seal life and reduce maintenance
Degassing System: Four-channel integrated degasser, 480 µL per channel, minimizing bubble formation and improving baseline stability
2. Diode Array Detector (DAD)
Diode Array: 1024 pixels for high-resolution spectral acquisition
Wavelength Range: 190 – 640 nm (covers full UV and visible range)
Light Source: Long-life deuterium lamp
Spectral Resolution: 0.6 nm/pixel
Spectral Bandwidth: 4.8 nm
Wavelength Accuracy: ±1 nm (calibrated), with repeatability of 0.1 nm
Enables peak purity analysis, spectral library matching, and multi-wavelength quantification in a single run
3. Column Temperature Chamber
Temperature Control Range: Room temperature +5°C to 70°C
Temperature Accuracy: ±1.0°C
Temperature Stability: ±0.1°C — critical for retention time reproducibility
Column Capacity: Accommodates one 250 mm analytical column (plus optional 10 mm guard column)
Uniform heating design minimizes thermal gradients across the column
4. System Advantages
Ultra-High Precision: Sub-microliter flow control ideal for micro-LC and method development
Exceptional Gradient Reproducibility: ≤0.1% RSD ensures reliable quantitative results
Integrated Design: Pump, degasser, DAD, and column oven in a compact footprint
Low Maintenance: On-line plunger wash extends component life
Compliance Ready: Meets ASTM and pharmacopeial requirements for analytical instrumentation
5. Ideal Applications
Pharmaceutical QC/QA and R&D
Environmental contaminant analysis
Food and beverage safety testing
Academic and clinical research
Method validation and transfer