Laevitas 800

Laevitas 800



Laevitas 800 is a completely new and unique concept, designed for extreme performance with high sensitivity and separation.

Until now, many compounds, such as Chinese herbal mixtures, have been still difficult to be separated.  Laevitas 800 is designed especially for complex compounds, unknown mixtures and those which need a fast and higher-resolution analysis coped with our specific columns.

Besides, Laevitas 800 is designed into a fully integrated system, consisting of gradient pump, a robatic and high-precision autosampler, a column oven and optional detectors, including UV-VIS, ECD, LIF, together with the unique concept of all the critical components being built into the column oven to ensure a higher through-put, stability and sensitivity.

The system gives more than a chemistry needs for some analytical data.  It gives a whole new concept of easiness, convenience, and jet-like efficiency for the modern chemical, biotechnological and life sciences.

Specification



Main

The Minimum Dead Volume: <170 μl from point of gradient mixing to analytical column

Least Carry-Over: < 0.1% (standard Wash); < 0.0005 (Custom Wash)

Unmatchable Reliability: < ±0.1% RSD  (Flow Precision)

Pump & Solvent Control

  • Number of Solvents: One or Two
  • Operating Flow Rate Range: 1 μL/min to 2,000 μL/min
  • Gradient Type: High-pressure mixing
  • Operating Pressure: Max, 12,000 psi
  • Flow Rate Precision: < ±0.1% RSD
  • Flow Accuracy: < ±1.0%
  • Gradient Range: 0 ~ 100 % ( 1% increments)
  • Delay/Dead Volume: <170 μl from point of gradient mixing to analytical column
  • Solvent Degassing: 2 channels
  • Plunger Seal Wash: Integral, active

Auto-sampler

  • Number of Sample Plates: 1.5 ml Vial ( 360 vials) 、4 ml Vial ( 256 vials)、96 and 384 Well Plate( 6 Plates)
  • Injection Volumes: 0.1 μL – 50 μL, with 0.1 μL increments
  • Injection Methods: Full loop fill, partial loop fill and no waste pickup fill
  • Injection Precision: < 0.3 % RSD
  • Carry-over: < 0.01% with needle wash
  • Wash Solvents: Two solvents
  • Sample cooling: 4 ?C to 40 ?C, at least 16 ?C below ambient
  • Injection Cycle time: < 30 sec

Column Oven  / UV-VIS Module

  • Column Temperature Control: Ambient -10?C to 60?°C (1°C increments)
  • Column Size: OD o6.3 to 8.0 , Length (max.) 250 mm.
  • Lamp source: Deuterium lamp
  • Wavelength Modes: Single and dual wavelength modes, user-selectable
  • Wavelength range: 190 to 700 nm
  • Wavelength Accuracy: ± 1 nm 
  • Wavelength Precision: ± 0.1 nm
  • Noise: < ± 0.6 × 10?5 AU at 254 nm
  • Drift: 2 ×10?4 AU/Hr at 254 nm
  • Data Acquisitions: Up to 200 Hz
  • Flow Cell: Volume 1 μL (pathlength 5 nm)

Benefits of temperature control

When performing very high speed analysis,it is possible that the retention time can become irreproducible due to fluctuations in mobile phase temperature.

Laevitas 800 offers complete thermostatic stability by building the gradient mixer inside the column oven; the result is excellent retention time reproducibility.

Precise gradient composition

Laeviats 800 pump delivers precise composition which enhances separation resolution. This pump also has low dead volume to get good peak shape.

Low Carry Over Autosampler

Laevitas 800’s unique injector washing system means carry-over is virtually eliminated, even in high sensitivity analysis.

Organic acids analysis using diffirent particle size column