Column Oven – Heated: CE 4601

The CE 4601 heated oven accommodates up to three columns and pre-columns with provision for pre-column heat exchanger to reduce column temperature gradients particularly at temperatures above 40ºC.

The oven is heated by forced air circulation and is fitted with a leak detector system.. The front opening door provides easy access to the columns. The temperature range of the oven is ambient to 85ºC with a stability of ±0.01ºC.

Column Oven - Heated and Chilled:
CE 4600

This oven is similar to the heated oven but is provided with thermoelectric cooling and heating for the columns over the range 5ºC to 70ºC the lowest temperature is 12ºC below ambient. Three columns and pre-columns may be accommodated.

Solvent Degassers

To enhance performance by reducing bubble formation two vacuum solvent degasser units are offered; the CE 4040 for up to four solvent lines and the CE 4020 for two channel operation. Each line can handle flows of 10mL/min and channels may be connected in parallel for increased flow rates.

Gas is removed to better than 1ppm at 1mL/min flow rate reducing baseline fluctuations and improving sensitivity. Solvents are only in contact with PTFE and inert materials, so the units are inert to HPLC solvents.

Solvent Reservoir and Pipe Organisers

The CE 4033 is a solvent organiser for three, one litre calibrated reservoirs and the CE 4034 shown here, is for four reservoirs for quaternary systems. They both fit neatly on top of the detector module and are fitted with a lifting handle and pipe guide to organise the pipes from the reservoirs. The units allow free access to the column, injector valve and flowcell.

Dynamic Mixers

Binary and Ternary dynamic mixers are available for gradient forming at pressures up to 40MPa. The CE 4120 and CE 4130 are for binary and ternary mixing respectively and are made from stainless steel and measure only 8cm x 10cm for convenient mounting on the detector.

For bio-compatibility mixers CE 4121 and CE 4131 are available in PEEK and operate up to pressures of 12MPa.

In the case of Quaternary and Binary low pressure gradient mixing systems, the dynamic mixer is part of the low pressure pump.