Firma:              Waters

Modell:            460

Kommentar:   Dokumente engl.

The Waters 460 Electrochemical Detector (referred to as the Waters 460) is designed for applications involving liquid chromatography with electrochemical detection (LCEC). The Waters 460 employs a three-electrode amperometric cell for high stability and sensitivity with Iow noise.

The unique cell design of the Waters 460 allows Operation at picogram levels per single injection. The working electrode is encased in borosilicate glass for Iow noise and easy maintenance. A flow through diaphragm in the reference electrode ensures that bubbles are flushed out of the cell. The front panel cell cover is a Faraday cage, which protects the analytical cell from outside interferences.

The Waters 460 contains the following features:

•            a unique, Iow-noise electronic design;

•            a 2.5 µl cell to minimize band broadening while maintaining peak resolution; and

•            a noise filter with 8 settings for Optimum signal-to-noise ratio.

In addition, the analytical cell is designed for ease of maintenance and can withstand a maximum pressure of 150 psi (10 bars). The Waters 460 can be operated upstream of another detector when running two detectors in series.

Specifications

Environmental                                            Operating temperature: 10 to 40°C

                                                                  Storage temperature: 2 to 50°C

Sensitivity (for 10 mV recorder)                 0.02 nAFS maximum

                                                                  20.0 nAFS minimum

Potential accuracy (between reference     ± 1% of setting (± 2 mV)

and working electrodes)

Maximum potential difference between     2 V

auxiliary and working electrodes

Electrical output signals                             Recorder: 0 - 10 mV (output impedance: 49.5 0)         Integrator: 0 - 1 V (output impedance: 400 S2)

Gell volume                                                2.5 µl; 50 µl gasket

Total swept volume                                    12 µl

Maximum pressure                                    150 psi (10 bars)

Wetted materials                                        Stainless steel, Teflon, quartz, glassy carbon,             borosilicate glass