Thermo Scientific Corona Veo, Руководство по эксплуатации

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6 • Operation
Charged Aerosol Detectors Corona Veo (RS) Operating Manual Page 143
Guidelines for selecting the evaporation temperature
The following guidelines are recommended for selecting an optimal
evaporation temperature:
NOTICE Do not use non-volatile additives, such as sodium phosphate.
Observe the Mobile Phase Guidelines for the Detector in section 6.5.1,
page 123 .
AVIS N’utilisez pas d’additifs non-volatiles, tels que le phosphate de
sodium. Observez les consignes pour la phase mobile de la section 6.5.1,
page 123 .
• In general, use the lowest evaporation temperature within the
specified temperature range that provides acceptable limits of
sensitivity.
• As a starting point, use an evaporation temperature of 35 °C.
•
Higher evaporation temperature settings can be used when analytes
of interest have low volatility, relative to the background. Since the
volatility of background residue is typically unknown,
experimentation is required for optimizing this parameter for a given
method.
•
Perform screening runs at two evaporation temperature settings:
♦ Corona Veo RS detector
Use a minimum of two evaporation temperatures. Typically,
35 °C and 40 °C are appropriate if the temperature range is
unknown. If required, perform additional tests in a maximum of
5 °C increments.
♦ Corona Veo detector
Use the two evaporation temperatures (35 °C and 50 °C) to
perform screening runs if the required temperature setting is
unknown.