Metash X-8DS Dual-Beam UV-Vis Spectrophotometer

Overview

The Metash X-8DS is a high-performance dual-beam ultraviolet-visible (UV-Vis) spectrophotometer engineered for precision quantitative and qualitative analysis across research laboratories, quality control environments, and academic institutions. Its dual-beam optical architecture continuously compares sample and reference beam intensities in real time, effectively compensating for source drift, detector instability, and environmental fluctuations—thereby delivering exceptional baseline stability and measurement reproducibility over extended operation periods. Operating across a broad spectral range of 190–1100 nm, the instrument supports routine absorbance, transmittance, and reflectance measurements for organic/inorganic compounds, biomolecules, nanoparticles, and thin-film materials. The system employs imported long-life deuterium and tungsten-halogen lamps, ensuring consistent spectral output and minimized lamp replacement frequency. All optical components are mounted on a rigid, 20 mm thick machined aluminum baseplate—an anti-deformation structural platform that isolates the optical path from mechanical vibration and thermal expansion effects, directly contributing to long-term photometric reliability.

Key Features

• Dual-beam optical design with real-time reference compensation for enhanced photometric stability and reduced baseline drift
• 10-inch high-resolution capacitive touchscreen interface with intuitive icon-based navigation and responsive gesture control
• Five-step adjustable spectral bandwidth (0.5, 1.0, 2.0, 4.0, and 5.0 nm) to optimize resolution versus signal-to-noise ratio for diverse sample types
• Integrated suspension-mounted optical assembly fixed to a precision-machined aluminum chassis, minimizing sensitivity to external vibration and thermal deformation
• Onboard data storage capacity equivalent to standard PC-based systems, supporting thousands of spectra and method files without external dependency
• USB port and U-disk interface for direct data export; optional Bluetooth module for wireless connectivity; native compatibility with HP DeskJet 1100/1200 series inkjet printers for A4 report generation

Sample Compatibility & Compliance

The X-8DS accommodates standard 10 mm pathlength cuvettes as well as specialized accessories including automated multicell changers, micro-volume cuvette holders (down to 50 µL), Peltier-controlled temperature-regulated autosamplers, integrating spheres for diffuse reflectance, rotating solid-sample stages, and specular reflection attachments. These options extend analytical capability to turbid suspensions, protein/DNA solutions, thin films, powders, and opaque solids. The instrument complies with fundamental performance criteria defined in ISO 9001–certified manufacturing processes and meets essential metrological requirements outlined in ASTM E275, ISO 6223, and USP . Software architecture adheres to GLP/GMP principles, incorporating role-based user authentication, full audit trail logging, electronic signature support, and immutable data archiving—enabling compliance readiness for regulated pharmaceutical, food safety, and clinical testing workflows subject to FDA 21 CFR Part 11 validation.

Software & Data Management

The X-8DS ships with Metash SpectraScan Pro software—a Windows-compatible application that replicates and extends all standalone instrument functions while enabling advanced post-acquisition processing. Capabilities include multi-curve overlay, derivative spectroscopy, peak identification and integration, kinetic curve fitting (zero-, first-, and second-order models), concentration mapping via multi-point calibration, and customizable report templates with embedded metadata (operator ID, timestamp, instrument serial number, method parameters). All data files are saved in vendor-neutral CSV and XML formats for third-party interoperability. The software enforces strict data integrity protocols: every action—including method modification, measurement execution, and result export—is timestamped, attributed to a logged-in user, and recorded in an encrypted, non-editable audit log accessible only by system administrators.

Applications

• Quantitative determination of analytes in pharmaceutical formulations (e.g., assay of active ingredients per USP monographs)
• Enzyme kinetics and ligand-binding studies using time-resolved absorbance monitoring
• Protein and nucleic acid quantification (A280/A260 ratios, extinction coefficient calculations)
• Colorimetric assays such as BCA, Bradford, and Lowry for total protein estimation
• Quality assurance of dyes, pigments, and optical filters through spectral transmittance profiling
• Environmental water analysis for nitrate, phosphate, and heavy metal complexes via derivatization methods
• Thin-film thickness and optical bandgap estimation using Tauc plot analysis of absorbance edge data

FAQ

Does the X-8DS support regulatory-compliant data handling for GxP environments?

Yes—the embedded software implements full 21 CFR Part 11–aligned controls, including electronic signatures, audit trails, and user access levels.
Can the instrument perform kinetic measurements without a PC connection?

Yes—standalone kinetic mode allows up to 10,000 data points per run with programmable interval timing and real-time curve display.
What is the maximum data storage capacity onboard?

Internal memory supports ≥50,000 spectra or ≥10,000 full method files, expandable via USB flash drive.
Is wavelength calibration traceable to NIST standards?

Factory calibration uses certified holmium oxide and didymium oxide reference filters; users may perform verification or recalibration using optional NIST-traceable standards.
Are firmware updates provided free of charge after purchase?

Metash offers lifetime firmware upgrades at no additional cost through registered customer portal access.