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DETECTORS FOR PREP CHROMATOGRAPHY

Photometric detectors Flash DAD

photometric detector

FOR PREPARATIVE CHROMATOGRAPHY

Flash DAD detectors are equipped with a diode array and can monitor up to 4 different wavelengths. They are controlled from ECOMAC software (06 DAD) or from own keyboard and display (10 DAD). Some of them can be equipped with remote cell as well.

Cells

cells

FOR PHOTOMETRIC DETECTORS

Preparative cells for Ecom photometric detectors can be divided into two groups. Standard inner cells are situated inside the detector unit and connection with the column is made by stainless steel or PTFE made tubing. External cells are situated on the column output and are connected to the detector by optical fiber cables.

Refractometric detectors

refractometric detector

FOR PREPARATIVE CHROMATOGRAPHY

The RI 2000 Differential Refractive Index Detector series offers the sensitivity, stability and reproducibility required for optimal RI detection. The thermal isolated optic with a counter current heat exchanger and with its programmable temperature control, results in an extremely stable baseline and an optimal Signal/Noise ratio. The RI 2000 series provide autopurge and autozero capabilities, as well as RS232 communication to acquire data directly without using any external signal interface.

Separpass

separpass

AUTOMATIC FLOW SPLITTING

separpass is a device which enables to use detector cells for preparative liquid chromatography together with analytic detectors. Often older analytic detectors are available, but due the low flow rates and limited pressures on the cell cannot be used. separpass allows the small amount of liquid to flow through the detector, while a large number of phases bypasses the detector cell. An overpressure for detector is generated by a spring force. Pressure drop for the detector can be changed by a control knob. The bypass eliminates any adjustment of the flow during separation - only on the beginning is set spring force by a rotating knob. The pressure on the detector cell can be set in the range 1 - 3 bar.