Veo Observer Plus Instruções de Operação descarregar pdf (Página 36)

Charged Aerosol Detectors

Corona Veo and Corona Veo RS

Page 28 Operating Instructions

Systems with Series and Parallel Detector Configuration

The detector can be used in series or parallel configuration with other detectors (for example,

a UV detector or mass spectrometer).

Series Configuration

In series configuration, one flow path from the pump is used for each type of detector

installed on the system. Consider the following:

• In general, charged-aerosol detectors such as the Corona Veo detector must be placed last

in the flow path within the system.

• The addition of other detectors may contribute to band broadening, and have an adverse

effect on peak shape measured by the detector.

Parallel Configuration

In parallel configuration with another detector or a mass spectrometer, consider the following:

• Use a flow splitter to ensure balanced distribution of liquid flows to each detector in the

system.

Tip: Thermo Fisher Scientific recommends using an adjustable analytical flow

splitter (part no. 70-6377, adjustable from 1:1 to 20:1) for flexible,

accurate and precise liquid flow.

• When you use a passive flow-splitting device and thus adjust (balance) the liquid flows,

consider the backpressure from the detector. Observe the flow rate specifications in the

'Technical Information' section (→ section 9, page 121).

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Veo Observer Plus Instruções de Operação Página 36