Bio-Rad ChromLab™ Software - Manual (Page 39)

Chromatogram View
User Guide | 37
Table 1. Trace Definitions
Trace Module Explanation
UV
 1–4
Single-Wavelength UV
and Multi-Wavelength
UV/Vis Detectors UV — with Single-Wavelength UV module, a
reading of absorbance
MV — with Multi-Wavelength UV/Vis module, up
to four readings (
 1–4)
Conductivity Single-Wavelength UV
and Multi-Wavelength
UV/Vis Detectors The conductivity of the fluid, read by the
conductivity monitor (mS/cm)
%B Theoretical System Pump Programmed by the user in the method or in the
System Pump dialog box
 Gradient, system pump: % of pump B
 Gradient, blending valve: % of valve Q4
 Buffer blending: % of valve Q4
pH Theoretical pH Theoretical pH, as programmed in the method or
System Pump dialog box. Available only with the
buffer blending valve in buffer blending mode
pH pH The measure of pH read from the pH probe,
available only when a pH valve is present
System
Pressure System Pump Measured at the mixer (psi or MPa)
PreCol Pressure Column Switching Valve Available when at least one column switching
valve is present
Tip: When two or more column switching
valves are present, the traces appear in
different shades of green on the
chromatogram. The trace number
corresponds to the valve number in the fluidic
scheme. For example, PreCol Pressure 1 in
the legend and the chromatogram
corresponds to C1 in the fluidic scheme.