Vector PCX
Vector PCX Derivatization Instrument
Vector PCX serves as another post-column choice ideal for application-specific methods. Vector PCX provides the selectivity and sensitivity required for most standard post-column applications while being reliable and easy to use. Since Vector PCX does not have a column oven it is important to use the HPLC column oven to ensure stable column temperature and prevent retention time drifts and separation problems.
Vector PCX Features:
- Inert pumps
- PEEK liquid manifolds
- Integrated gas manifold
- Easy access and monitoring of fluidics
- Simple control interface (no computer required)
- Reduced bench space profile
Matched with Pickering’s Chromatographic Grade® reagents, eluants and columns, the Vector PCX instrument is a solid choice for laboratories’ standard post-column needs.
Vector PCX Specifications
- Dimensions: (h x w x d): 43 x 21.6 x 41.2 cm
- (17 x 8.75 x 16 inches)
- Weight: 27.6 lbs (12.5 kg) – Duplex
- Electrical: 100 – 120 V, 50/60 Hz 1.7 A, 200 W or
- 200-240 V, 50/60 Hz, 0.8 A, 200 W
- Mains voltage ± 10 % of nominal
- Installation (over voltage) category II, pollution degree 2
- Indoor use only
- Environmental: altitude up to 6,500 ft
- Ambient temperature 15 º – 25 ºC
- Relative humidity up to 80 % at 31 ºC
Reagent Pumps
- Independently adjustable, low-pulsation
- Adjustable from 0.05 to 2.00 mL/minute against back-pressures of up to 2000 psi
- Flow Accuracy 3 %
- Flow Precision 0.5 % RSD
- Sapphire pistons
- Liquid ends, including check valve housing, PEEK
- PEEK bypass/purge valves for each pump located on front of instrument panel
- Automatic piston wash
Flow Path
- Independent pressure transducer for each pump 210 bar (0-3000 psi)
- Diamond-packed restrictors, matched to flow rate and viscosity of reagents
- PEEK bypass/purge valves
- Replaceable reagent filter
- PEEK mixing manifold
REACTOR
- Heater reactor controls at ±0.4 ˚C for temperatures from 5 ˚C above ambient to 130 ˚C
- Range of reactor dwell volumes, 0.1 mL to 3.5 mL
- Reaction coil withstands up to 42 bar (600 psi) inlet pressure at 130 ˚C
- LCD display of actual temperature or set point
- Thermal safety switch limits temperature to 150˚C to prevent damage.
Gas Pressure Manifold and Regulators
- Panel mounted manifold
- Regulator maintains 0.3 bar (3-5 psi) on reagent reservoirs with 3-5 bar (45-75 psi) source pressure
- Safety pressure relief valve opens at 1 bar (14 psi)
- Manifold has two 1/4-28 tubing connections
- Gas line with anti-siphon valve
Pressurized Reagent Reservoir
- One liter capacity (2 L reservoirs available)
- Maintained under inert gas pressure to inhibit oxidation of oxygensensitive reagents
- Valve built into reservoir cap permits sparging during reagent preparation
- Reagent reservoirs fitted with 3.1 mm (1/8’’) OD, oxygen-impermeable Air Barrier tubing for oxygen-sensitive reagents and/or with 3.1 mm (1/8’’) OD FEP tubing.
Safeguards
- A pressure switch installed between LC (eluant) pump and sample injector turns off power to reagent pumps and reactor when the eluant pump pressure drops to 30 bar (425 psi), ensuring that reagent will not flow upstream and damage the analytical column. Low eluant pressure can result from power failure, eluant pump malfunciton, automatic or intentional shut-down, or an empty reservoir. The Vector PCX will not restart automatically.
- Post-column system over pressure: A pre-calibrated relief valve opens at 35 bar (500 psi) to prevent rupture of the post-column reactor tubing in the event of down-stream blockage
- Back-pressure regulator: Applies 7 bar (100 psi) to the detector flow cell outlet (waste) to prevent detector noise and precipitation due to
- out-gassing or boiling