Metash UV-5200(PC) Dual-Beam Proportional Monitoring Ultraviolet-Visible Spectrophotometer

Overview

The Metash UV-5200(PC) is a dual-beam proportional monitoring ultraviolet-visible spectrophotometer engineered for precision absorbance, transmittance, and concentration measurements across the full spectral range of 190–1100 nm. Unlike conventional single-beam instruments, its optical architecture employs real-time reference beam monitoring to dynamically compensate for source intensity drift—particularly critical during extended kinetic assays or temperature-sensitive analyses. The system utilizes a matched pair of high-stability deuterium and tungsten-halogen lamps, with automatic lamp switching at ~350 nm, ensuring optimal signal-to-noise ratio across both UV and visible regions. Its 2 nm spectral bandwidth complies with standard method requirements for pharmaceutical assay validation (e.g., USP and EP 2.2.25), while the 8 mm thick aerospace-grade aluminum optical base provides mechanical rigidity, minimizing sensitivity to environmental vibration and thermal expansion-induced misalignment.

Key Features

• Dual-beam proportional monitoring optical path with real-time reference correction, delivering enhanced photometric stability over time (drift <0.002 A/h at 500 nm, 2 nm SBW)
• Robust optical mounting: suspended optical assembly fixed to a monolithic 8 mm anodized aluminum baseplate—designed to isolate the spectrometer core from chassis deformation and external mechanical perturbations
• Plug-and-play lamp module design: flange-mounted deuterium lamp enables replacement without optical realignment or recalibration
• Integrated 128 × 64 dot-matrix LCD with multi-parameter display per screen—supports simultaneous viewing of wavelength, absorbance, %T, and kinetics timestamp
• Onboard data handling: stores up to 200 measurement datasets and 200 user-defined calibration curves with numeric ID indexing and power-loss recovery
• Self-diagnostic wavelength calibration: automated peak search at holmium oxide and didymium reference lines; auto-correction of wavelength offset within ±0.8 nm tolerance

Sample Compatibility & Compliance

The UV-5200(PC) accommodates standard 10 mm pathlength cuvettes (quartz, glass, or plastic), as well as optional accessories including an 8-position automated sample changer, micro-volume cell holders (down to 50 µL), Peltier-controlled thermostatted cells, integrating sphere reflectance modules, and fiber-optic probes for remote or in-situ measurements. All hardware and firmware comply with IEC 61010-1 safety standards. When operated with the optional PC software suite, the instrument supports full audit trail functionality—including user authentication, electronic signature capability, change history logging, and immutable data archiving—meeting regulatory expectations under FDA 21 CFR Part 11, ISO/IEC 17025, and GLP/GMP laboratory frameworks.

Software & Data Management

The optional Metash UV-Vis Spectral Analysis Software is a Windows-based application designed for regulated environments. It supports quantitative analysis via linear/nonlinear calibration curves (including 1–5 point polynomial fits), kinetic time-course modeling, multi-wavelength quantitation, DNA/protein A₂₆₀/A₂₈₀ ratio calculation using built-in extinction coefficients, and full spectral scanning with baseline correction and peak identification. Raw spectral data are saved in vendor-neutral CSV format; reports include instrument configuration metadata, operator ID, date/time stamps, and calibration verification logs. All data modifications are tracked with timestamped entries and user attribution—enabling full traceability required for quality control laboratories in pharma, food, and environmental testing sectors.

Applications

This spectrophotometer serves routine and research applications across multiple domains: quantitative determination of active pharmaceutical ingredients (APIs) per USP/EP monographs; enzyme kinetics and inhibitor screening in biochemistry labs; water quality analysis (nitrate, phosphate, COD); polymer degradation studies via UV absorption shifts; nanoparticle size estimation using surface plasmon resonance bands; and educational use in analytical chemistry curricula. Its dual-beam architecture ensures reliable performance in environments where ambient temperature fluctuations or prolonged daily operation would compromise single-beam stability.

FAQ

Does the UV-5200(PC) support compliance with FDA 21 CFR Part 11?
Yes—when used with the validated PC software package, it provides role-based access control, electronic signatures, and immutable audit trails meeting Part 11 requirements.
Is the instrument capable of measuring samples below 190 nm?
No—the lower limit is defined by atmospheric oxygen absorption and quartz cuvette cutoff; 190 nm represents the practical operational minimum under standard lab conditions.
Can the stored calibration curves be exported to external LIMS systems?
Yes—calibration parameters and result files are exportable in CSV and XML formats compatible with common LIMS and ELN platforms.
What maintenance is required for the optical system?
Routine cleaning of cuvette compartments and external optics is recommended; lamp lifetime is rated at ≥2000 hours, and no periodic optical alignment is needed due to the rigid baseplate design.
Is third-party software integration supported?
The USB HID interface enables basic command-response communication; however, full API-level integration is limited to the official Metash software suite, which includes DLL libraries for custom C#/Python automation scripts.