Shimadzu TOC-L CPN Total Organic Carbon Analyzer (Refurbished)
| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Model | TOC-L CPN |
| Detection Range | 4 µg/L to 30,000 µg/L |
| Detection Limit | 4 µg/L |
| Oxidation Method | 680 °C Catalytic Combustion Oxidation |
| Configuration | PC-Controlled with TNM-L Total Nitrogen Module, ASI-L Autosampler, Integrated Tubing & Fittings, Dedicated Control PC with TOC-L Software |
| Warranty | 90 Days |
Overview
The Shimadzu TOC-L CPN is a high-performance, refurbished total organic carbon (TOC) analyzer engineered for precise, reliable quantification of organic carbon content in aqueous samples across environmental, pharmaceutical, and industrial water quality applications. It employs Shimadzu’s proprietary 680 °C catalytic combustion oxidation method—a thermally robust, universally applicable technique that ensures complete mineralization of both labile low-molecular-weight organics and recalcitrant, non-volatile, or particulate-bound compounds—including humic substances, polymers, and suspended organic matter. Unlike UV/persulfate or wet chemical oxidation methods, this high-temperature catalytic process delivers superior oxidation efficiency (>99% for most organics), minimal matrix interference, and exceptional reproducibility—critical for compliance with stringent regulatory frameworks such as US EPA Method 415.3, ASTM D7573, ISO 8245, and pharmacopeial requirements (USP , EP 2.2.44). The CPN variant is the PC-controlled configuration, enabling full system automation, real-time data acquisition, and integrated reporting workflows.
Key Features
- Ultra-low detection limit of 4 µg/L TOC—among the lowest achievable using catalytic combustion oxidation, validated per ISO 10678 and Shimadzu internal performance verification protocols
- Linear dynamic range spanning four orders of magnitude (4–30,000 µg/L), supporting both ultrapure water monitoring and wastewater effluent analysis without dilution
- Dual-detector NDIR (non-dispersive infrared) measurement system for CO2 quantification, ensuring long-term stability and drift-free calibration
- Integrated TNM-L total nitrogen module enables simultaneous or sequential TOC and TN analysis on the same sample—essential for C/N ratio studies and nutrient load assessments
- ASI-L autosampler with 64-position capacity, programmable rinse cycles, and syringe-driven precision injection (±0.5% RSD) for unattended operation over extended periods
- Robust ceramic combustion tube with Pt catalyst, rated for >10,000 analyses under routine use; maintenance intervals extended via intelligent thermal profiling and self-diagnostic routines
Sample Compatibility & Compliance
The TOC-L CPN accepts liquid samples with conductivity ≤5 mS/cm and suspended solids ≤50 mg/L (filtered prior to analysis). It accommodates deionized water, drinking water, surface water, treated wastewater, pharmaceutical process water (PW, WFI), and cleaning validation rinse solutions. All hardware and software components comply with IEC 61000-6-3 (EMC) and IEC 61010-1 (safety). Data integrity is maintained in accordance with FDA 21 CFR Part 11 requirements through audit-trail-enabled software, electronic signatures, and role-based user access control. System suitability testing (SST), calibration verification, and blank correction protocols align with GLP and GMP laboratory practices.
Software & Data Management
Control and data handling are managed via Shimadzu’s TOC-L Series Software (v3.x or later), installed on the dedicated Windows-based PC included in the configuration. The software supports method development with customizable oxidation parameters (e.g., pre-combustion hold time, catalyst temperature ramp profiles), automated calibration curve generation (up to 8-point multi-level calibration), and QC flagging (e.g., %RSD, recovery, carryover). Raw chromatograms, peak integration tables, and summary reports are exportable in CSV, PDF, and XML formats. Data archiving follows hierarchical folder structures with timestamped backups; optional integration with LIMS via ODBC or ASCII file transfer is supported.
Applications
- Regulatory monitoring of TOC in purified water systems (USP , JP 17, Ph. Eur. 2.2.44)
- Environmental compliance testing for discharge permits (EPA NPDES, EU WFD)
- Pharmaceutical cleaning validation and bioburden risk assessment
- Research on carbon cycling in aquatic ecosystems and wastewater treatment efficiency
- Quality control of excipients, solvents, and active pharmaceutical ingredients (APIs)
- Corrosion control in power plant boiler feedwater and steam condensate loops
FAQ
Is this unit fully refurbished and tested prior to shipment?
Yes. Each TOC-L CPN undergoes comprehensive functional verification at SpectraLab Scientific’s ISO/IEC 17025-accredited calibration facility, including oxidation efficiency validation, detector linearity assessment, and autosampler precision testing.
Does the 90-day warranty cover parts and labor?
Yes—the warranty includes all components, consumables (excluding quartz combustion tubes and catalysts), firmware updates, and remote technical support.
Can the system be upgraded to meet current Shimadzu software versions?
Yes. The included PC meets minimum system requirements for TOC-L Software v4.x; upgrade paths are available upon request and may require minor hardware validation.
Are original Shimadzu service manuals and calibration certificates provided?
Yes—digital copies of the English-language operation manual, maintenance guide, and factory calibration report are delivered with the instrument.
What installation support is offered?
SpectraLab provides remote commissioning assistance, including network configuration, software activation, and initial method setup; on-site installation services are available globally for an additional fee.
