Agilent 8453 UV-Vis Spectrophotometer (Refurbished)

Overview

The Agilent 8453 UV-Vis Spectrophotometer is a high-performance, diode array-based spectrophotometric system engineered for precision quantitative and qualitative analysis in regulated and research environments. Unlike traditional single-beam or double-beam scanning instruments, the 8453 employs a fixed-grating optical architecture with a 1024-element silicon photodiode array detector, enabling simultaneous acquisition of full-spectrum data across 190–1100 nm in under 0.1 seconds. This design eliminates mechanical wavelength scanning, significantly enhancing measurement reproducibility, long-term photometric stability, and instrument uptime. The system’s dual-lamp configuration—pre-aligned deuterium (UV) and tungsten-halogen (VIS-NIR)—ensures seamless spectral continuity without manual lamp switching or intensity correction artifacts. Its optical path is optimized for high throughput and low stray light (<0.03% T at 340 nm), supporting sensitive detection down to absorbance levels where baseline flatness remains within ±0.001 A and drift is limited to ±0.001 A/h. Designed and manufactured in the United States, the 8453 meets core pharmacopeial requirements per USP and EP 2.2.25 for wavelength accuracy, photometric linearity, and system suitability testing.

Key Features

• Fixed-grating diode array optics: No moving parts in the monochromator—eliminates grating wear, misalignment risk, and wavelength reproducibility drift over time
• Simultaneous full-spectrum acquisition: Captures complete 190–1100 nm spectra in ≤100 ms, enabling kinetic profiling, multi-wavelength quantitation, and spectral fingerprinting
• Pre-aligned dual-lamp source: Factory-calibrated deuterium and tungsten lamps reduce maintenance downtime and ensure consistent irradiance across UV-VIS-NIR ranges
• Open sample compartment design: Accommodates standard 10 mm cuvettes, multicell changers, temperature-controlled holders, and fiber-optic probes without optical realignment
• GPIB and Ethernet (LAN) interfaces: Enables integration into automated lab networks, remote operation via PC, and compliance with centralized instrument management protocols
• Robust firmware architecture: Supports embedded diagnostics—including OQ/PV (Operational & Performance Verification), logbook generation, and EMF (Early Maintenance Feedback)—to document system health and support GLP/GMP audit readiness

Sample Compatibility & Compliance

The Agilent 8453 is compatible with liquid-phase samples in quartz, glass, or plastic cuvettes (standard 10 mm pathlength), as well as flow cells, microvolume adapters, and solid-sample reflectance accessories. Its spectral fidelity and photometric accuracy meet regulatory thresholds required for pharmaceutical release testing, excipient qualification, and stability-indicating assay development. The instrument satisfies critical sections of USP (Spectrophotometry and Light-Scattering) and EP 2.2.25 (Ultraviolet and Visible Absorption Spectrophotometry), including wavelength accuracy verification using hydrogen/deuterium emission lines and photometric accuracy assessment with neutral density filters. When deployed with Agilent ChemStation Security Edition or equivalent 21 CFR Part 11-compliant software, it supports electronic signatures, audit trails, user role-based access control, and data integrity safeguards required for FDA-regulated laboratories.

Software & Data Management

The 8453 operates natively with Agilent ChemStation software (versions A.09.x and later), offering modular functionality—from basic spectrum acquisition and peak integration to advanced kinetics modeling, multicomponent analysis, and thermal denaturation profiling. Optional modules include BioAnalysis Software for protein/nucleic acid quantification (A260/A280 ratios, extinction coefficient application), Multi-Cell Kinetics for time-resolved enzymatic assays, and Thermal Analysis for melting curve determination. All software versions support raw data export in ASCII, CSV, or JCAMP-DX formats, ensuring interoperability with third-party statistical packages (e.g., MATLAB, Python pandas) and LIMS integration. System logs, calibration records, and OQ/PV reports are timestamped, user-attributed, and stored in encrypted local databases—fully traceable for internal QA review or external regulatory inspection.

Applications

• Pharmaceutical QC/QA: Identity confirmation, assay potency, impurity profiling, and dissolution testing per ICH Q2(R2) guidelines
• Biopharmaceutical characterization: Protein concentration (BCA/Lowry/UV280), nucleic acid purity (A260/A280), and thermal unfolding studies
• Chemical R&D: Reaction monitoring, equilibrium constant determination, and molar absorptivity validation
• Environmental analysis: Nitrate/nitrite quantification, COD estimation, and heavy metal complexation studies
• Academic teaching labs: Spectral interpretation, Beer-Lambert law validation, and method development exercises requiring rapid spectral feedback

FAQ

Is this unit fully refurbished and tested prior to shipment?
Yes. Each Agilent 8453 undergoes comprehensive functional verification at SpectraLab Scientific’s ISO 9001-certified refurbishment facility, including wavelength calibration, photometric linearity checks, stray light measurement, and baseline stability assessment.
What warranty is included with the refurbished 8453?
A standard 6-month limited hardware warranty is provided, covering defects in materials and workmanship. Extended service plans and annual PM contracts are available upon request.
Does the system include original Agilent software licenses?
The instrument ships with a valid ChemStation license key. Legacy software installation media and documentation are included; current-version upgrades require separate Agilent support subscription.
Can the 8453 be integrated into a networked laboratory environment?
Yes. Equipped with both GPIB and 10/100BASE-T Ethernet ports, it supports direct connection to Windows/Linux PCs and integration with enterprise LIMS or ELN platforms via standard TCP/IP protocols.
Are performance qualification (PQ) documents available?
Standard OQ/PV templates compliant with ISO/IEC 17025 and ASTM E2500-21 are supplied. Customized IQ/OQ documentation aligned with client SOPs can be generated for an additional fee.