Page 14 - Shimadzu Prominence

Column Ovens

The column oven precisely controls the temperature around the column to support stable
analysis that is unaffected by changes in ambient temperature.
It can contain various units and parts in addition to the column, including a manual injector
(CTO-20A/20AC), gradient mixer, high-pressure flow-line selection valves (any two:
2-position/6-port, 6-position/7-port), cell block of an electric conductivity detector
(CTO-20A/20AC), and a reaction coil (CTO-20A/20AC).
CTO-30A

Supports high-temperature analysis up to 150°C
The CTO-30A is a block-heating type column oven. It offers temperature control up to 150°C
and the intelligent heat balance mechanism extracts maximum performance from a
high-efficiency column.
CTO-20A/20AC

Accommodates multiple columns
The CTO-20A is a forced-air circulation-type column oven. It offers temperature control from
10°C below room temperature to 85°C.
It allows setting of complex temperature programs, such as linear-wise or step-wise heating
and cooling. The CTO-20AC incorporates a cooling function. This electronic cooler offers
temperature control from −10°C below room temperature to 85°C.

Precise Temperature Regulation

The interior of the oven is precisely regulated with a high-performance thermistor. Also, the temperature is calibrated at two different
temperatures to ensure a high level of accuracy.
Changes in Room Temperature and Internal Oven Temperature in One Day Changes in Room Temperature and Stability of Retention Time for Vitamin A Acetate in One Day
CTO-20AC Room temperature Retention time
Internal oven temperature
Temperature (°C) Retention time (min)

Analysis time (hours, minutes) Analysis time (hours, minutes)
Installation of CMD (Option)

This product supports installation of the CMD (Column Management Device), which can be used to record information about the way the
column is used, such as the number of injections, the amount of mobile phase that flows, and the composition of the last mobile phase
used. This information can be managed at an LC workstation (LCsolution) or a PC in the network using the Web-control function.

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