Shimadzu CTO-20AC Prominence HPLC Column Oven with Integrated Mixer and Chiller
| Brand | Shimadzu |
|---|---|
| Origin | Canada |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | CTO-20AC |
| Product Category | Chromatography |
| Usage Duration | 5–7 years |
| Warranty Period | 6 months |
| Price Range | USD $1,200–$6,500 (FOB) |
Overview
The Shimadzu CTO-20AC Prominence HPLC Column Oven is a temperature-controlled chromatographic accessory engineered for precise, stable column thermal management in high-performance liquid chromatography (HPLC) and ultra-high-performance liquid chromatography (UHPLC) systems. Designed as a core component of the Shimadzu Prominence modular LC platform, the CTO-20AC maintains column temperature within ±0.1 °C accuracy across a programmable range of 4 °C to 85 °C—enabling reproducible retention time control, improved peak shape, and enhanced method robustness. Its integrated Peltier-based thermoelectric cooling system allows rapid temperature ramping and sub-ambient operation down to 4 °C, eliminating dependence on external chillers in many applications. The unit features dual-zone temperature control (oven + mixer/chiller module), supporting simultaneous column heating and mobile phase pre-conditioning—a critical capability for gradient methods requiring low-temperature solvent mixing or viscous mobile phase handling.
Key Features
- Programmable temperature range: 4 °C to 85 °C with ±0.1 °C stability (measured at column outlet)
- Integrated thermoelectric (Peltier) cooling and heating—no external coolant required
- Dual-function design: column oven + mixer chamber + inline chiller for mobile phase conditioning
- Compatible with standard 1/16″ stainless steel and fused silica capillary tubing (up to 30 cm column length)
- Front-panel LCD interface with real-time temperature display, setpoint memory, and error logging
- RS-232 and USB connectivity for remote control via Shimadzu LabSolutions software
- Robust stainless-steel housing with insulated chamber and forced-air convection for uniform thermal distribution
- Designed for seamless integration with Shimadzu LC-20AD, LC-20AT, and SIL-20A modules
Sample Compatibility & Compliance
The CTO-20AC supports all common reversed-phase, HILIC, ion-exchange, and size-exclusion chromatography columns (including sub-2 µm particle-packed UHPLC columns). Its thermal architecture meets ASTM E2656-21 requirements for column oven performance verification and aligns with ICH Q2(R2) guidelines for method validation involving temperature-sensitive separations. When operated within Shimadzu’s validated Prominence LC ecosystem, the unit supports GLP/GMP-compliant workflows—including audit-trail-enabled temperature logging when paired with LabSolutions CS v5.91 or later (21 CFR Part 11 compliant configuration available upon request). All refurbished units undergo full functional verification per Shimadzu service manual SM-CTO20AC-Rev.D, including thermal ramp testing, stability profiling over 8-hour dwell, and leak integrity checks at 60 MPa.
Software & Data Management
The CTO-20AC communicates natively with Shimadzu LabSolutions LC/GC software (v5.8+), enabling synchronized temperature programming with gradient elution profiles, automatic event-triggered setpoint changes, and real-time temperature overlay on chromatograms. Raw temperature logs (timestamped, 1-second resolution) are stored in .csv and .txt formats and can be exported for QC review or regulatory submission. For laboratories operating under FDA 21 CFR Part 11, optional electronic signature modules and role-based access controls are supported through LabSolutions CS deployment. SpectraLab Scientific provides post-purchase firmware update support and configuration assistance for LIMS integration via ASCII command protocol.
Applications
- Method transfer between HPLC and UHPLC platforms requiring consistent column temperature control
- Pharmaceutical impurity profiling where retention time drift must remain <0.02 min over 48-hr sequence
- Biopolymer analysis (e.g., mAbs, oligonucleotides) using elevated temperatures (60–80 °C) to reduce backpressure and improve mass transfer
- Environmental analysis of polar pesticides using low-temperature HILIC separations (4–15 °C)
- QC labs performing compendial methods (USP , EP 2.2.46) requiring documented column temperature traceability
- Academic research requiring precise thermal modulation to study thermodynamic selectivity differences (ΔH°, ΔS°)
FAQ
Is this a factory-refurbished unit or third-party reconditioned?
All CTO-20AC units supplied by SpectraLab Scientific are professionally refurbished in-house following Shimadzu’s OEM maintenance protocols, including replacement of thermal interface materials, recalibration of thermistors, and full electrical safety testing.
Does the unit include original Shimadzu documentation and calibration certificates?
Yes—each unit ships with a complete set of bilingual (English/French) operation manuals, a traceable NIST-calibrated temperature verification report, and a refurbished equipment certificate signed by our ISO 9001-certified service team.
Can the CTO-20AC be used with non-Shimadzu HPLC systems?
While designed for Shimadzu Prominence platforms, analog voltage input/output (0–5 V) enables basic temperature control integration with third-party LC controllers; however, advanced synchronization (e.g., gradient-triggered temp shifts) requires native LabSolutions communication.
What consumables or accessories are recommended for long-term reliability?
We recommend annual replacement of the Peltier module thermal paste (Shimadzu P/N 228-57250-91), periodic cleaning of the air intake filter, and use of Shimadzu-certified column brackets to prevent mechanical stress during thermal cycling.
