Teledyne CombiFlash EZ Prep, Руководство пользователя

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CombiFlash® Rf
+
User Manual
6-24
On PURION S and PURION L systems, detected ions
may be a mixture of positive and negative ions.
Ion Settings – set ionization parameters to enhance
detection of molecular ion peaks.
• External Detector — Enable this option to use a 0 to 1
volt analog signal from an external detector. When
enabled, click the Details button to configure additional
settings. These settings include the slope-based and
peak width options described in

1 and

2 above. The
system will use its internal algorithms to cut detect and
cut peaks based on the analog input signal. Refer to the
External Detector instruction sheet for cable and
plumbing requirements.
The external detector option is not available on Rf+
Lumen and Rf+ PurIon systems.
• ELS Detector — Enable this option to use the
evaporative light scattering (ELS) detector on an Rf+
Lumen system. When enabled, click the Details button
to configure additional settings:
Signal Gain – You may modify the gain to scale the
detector signal.
Slope Based and Threshold – Refer to these
features described in

1 and

2 above.
Spray Chamber Temperature – The default
settings are 30 °C (normal phase default methods)
and 15 °C (reverse phase). This setting may be
adjusted from 10 to 60 °C so that detection can be
optimized for the solvent system in use. However, the
lower limit is 5 °C below the ambient temperature.
Drift Tube Temperature – The default settings are
60 °C (normal phase default methods) and 60 °C
(reverse phase). This setting may be adjusted from 30
to 90 °C, but is limited to a range of 5 °C below and 60
°C above the ambient temperature.
• Purity Measure — If using two absorbance
wavelengths, check this option to display a ratio of the
selected wavelengths. The ratio trace is often a useful
indicator of purity. Use the SHOW SPECTRAL PURITY
control to measure purity by using a comparison of
UV-spectra measured at differing times as a purity
measurement. The SPECTRAL PURITY DETECTION